CS495313-CVZ [CIRRUS]

32-bit Audio Decoder DSP Family with Dual DSP Engine Technology; 32位音频解码器DSP系列采用双DSP引擎技术
CS495313-CVZ
型号: CS495313-CVZ
厂家: CIRRUS LOGIC    CIRRUS LOGIC
描述:

32-bit Audio Decoder DSP Family with Dual DSP Engine Technology
32位音频解码器DSP系列采用双DSP引擎技术

解码器
文件: 总38页 (文件大小:598K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
CS4953xx Data Sheet  
FEATURES  
32-bit Audio Decoder DSP Family  
with Dual DSP Engine Technology  
‰ Multi-standard 32-bit Audio Decoding plus Post  
Processing  
The CS4953xx DSP family are the enhanced versions of the  
CS495xx DSP family with higher overall performance and  
lower system cost. The CS4953xx includes all mainstream  
audio processing codes in on-chip ROM. This saves external  
memory for code storage. In addition, the intensive decoding  
tasks of Dolby Digital® Surround EX®, AAC multi-channel,  
DTS-ES 96/24, THX Ultra2 Cinema and Dolby Headphone  
can be accomplished without the expense of external  
SDRAM memory. With larger internal memories than the  
CS495xx, the CS49531x is designed to support up to 150 ms  
per channel of lip-sync delay. With 150 MHz internal clock  
speed, the CS4953xx supports the most demanding post-  
processing requirements. It is also designed for easy  
upgrading. Customers currently using the CS495xx can  
upgrade to the CS4953xx with minor hardware and software  
changes.  
‰ FrameworkApplications Library in ROM  
Dolby Digital® EX, Dolby® Pro Logic® IIx, Dolby Headphone®,  
Dolby® Virtual Speaker®  
DTS-ES 96/24, DTS-ESDiscrete 6.1, DTS-ESMatrix 6.1,  
DTS:Neo6™  
AAC Multichannel 5.1  
— SRS® CS2® and TSXT®  
THX® Ultra2, THX® ReEQ™  
— Cirrus Original Multi-Channel Surround (COMS)  
— Crossbar Mixer, Signal Generator  
Advanced Post-Processor including: 7.1Bass Manager, Tone  
Control, 12- Band Parametric EQ, Delay, 1:2 Upsampler  
Microsoft® HDCD®  
‰ FrameworkApplications for Download  
Ordering Information  
Thomson MP3 Surround  
Internal DSD-to-PCM Conversion  
‰ Up to 12 Channels of 32-bit Serial Audio Input  
See page 31 for ordering information  
‰ 6 Channel DSD Input  
‰ 16 Ch x 32-bit PCM Out with either two 192 kHz S/PDIF  
Tx (144-pin package) or one 192 kHz S/PDIF Tx (128-pin  
package)  
‰ Two SPI/I2C®, One Parallel and One UART Port  
‰ Customer Software Security Keys  
‰ Large On-chip X, Y, and Program RAM & ROM  
‰ SDRAM and Serial/Parallel Flash Memory Support  
Serial  
Control 1  
Serial  
Control 2  
Parallel  
Control  
UART  
GPIO  
Debug  
12 Ch. Audio In /  
6 Ch. SACD In  
STC  
TMR1  
TMR2  
D
M
A
32-bit  
DSP A  
32-bit  
DSP B  
S/PDIF S/PDIF  
P
X
Y
P
X
Y
16 Ch PCM  
Audio Out  
PLL  
Ext. Memory Controller  
This document contains information for a new product.  
Cirrus Logic reserves the right to modify this product without notice.  
Preliminary Product Information  
®Copyright 2008 Cirrus Logic, Inc.  
JUNE ’08  
DS705PP2  
http://www.cirrus.com  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
Table of Contents  
1. Documentation Strategy ...........................................................................................................4  
2. Overview ....................................................................................................................................4  
2.1 Migrating from the CS495xx(2) to the CS4953xx .....................................................................................4  
2.2 Licensing ..................................................................................................................................................4  
3. Code Overlays ...........................................................................................................................5  
4. Hardware Functional Description ...........................................................................................7  
4.1 DSP Core .................................................................................................................................................7  
4.1.1 DSP Memory ...............................................................................................................................7  
4.1.2 DMA Controller ............................................................................................................................7  
4.2 On-chip DSP Peripherals .........................................................................................................................8  
4.2.1 Digital Audio Input Port (DAI) .......................................................................................................8  
4.2.2 Digital Audio Output Port (DAO) ..................................................................................................8  
4.2.3 Serial Control Port 1 & 2 (I2C® or SPI) .....................................................................................8  
4.2.4 Parallel Control Port ....................................................................................................................8  
4.2.5 External Memory Interface ..........................................................................................................8  
4.2.6 GPIO ............................................................................................................................................8  
4.2.7 PLL-based Clock Generator ........................................................................................................8  
4.3 DSP I/O Description .................................................................................................................................9  
4.3.1 Multiplexed Pins ..........................................................................................................................9  
4.3.2 Termination Requirements ...........................................................................................................9  
4.3.3 Pads ............................................................................................................................................9  
4.4 Application Code Security ........................................................................................................................9  
5. Characteristics and Specifications .......................................................................................10  
5.1 Absolute Maximum Ratings ....................................................................................................................10  
5.2 Recommended Operating Conditions ....................................................................................................10  
5.3 Digital DC Characteristics ......................................................................................................................10  
5.4 Power Supply Characteristics ................................................................................................................ 11  
5.5 Thermal Data (144 LQFP) ...................................................................................................................... 11  
5.6 Thermal Data (128 LQFP) ...................................................................................................................... 11  
5.7 Switching Characteristics— RESET ....................................................................................................... 11  
5.8 Switching Characteristics — XTI ............................................................................................................12  
5.9 Switching Characteristics — Internal Clock ............................................................................................13  
5.10 Switching Characteristics — Serial Control Port - SPI Slave Mode. ....................................................14  
5.11 Switching Characteristics — Serial Control Port - SPI Master Mode ...................................................15  
5.12 Switching Characteristics — Serial Control Port - I2C Slave Mode ......................................................16  
5.13 Switching Characteristics — Serial Control Port - I2C Master Mode ....................................................17  
5.14 Switching Characteristics — Parallel Control Port - Intel® Slave Mode ..............................................18  
5.15 Switching Characteristics — Parallel Control Port - Motorola® Slave Mode .......................................20  
5.16 Switching Characteristics — UART ......................................................................................................22  
5.17 Switching Characteristics — Digital Audio Slave Input Port .................................................................23  
5.18 Switching Characteristics — DSD Slave Input Port ............................................................................24  
5.19 Switching Characteristics — Digital Audio Output Port ........................................................................24  
5.20 Switching Characteristics — External Memory Interface - Flash Mode ...............................................26  
5.21 Switching Characteristics — SDRAM Interface ....................................................................................28  
6. Ordering Information ..............................................................................................................31  
7. Environmental, Manufacturing, & Handling Information ....................................................31  
8. Device Pinout Diagrams .........................................................................................................32  
8.1 128-Pin LQFP Pinout Diagram ...............................................................................................................32  
2
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
8.2 144-Pin LQFP Pinout Diagram ...............................................................................................................33  
9. Package Mechanical Drawings ..............................................................................................34  
9.1 128-pin LQFP Package Drawing ............................................................................................................34  
9.2 144-Pin LQFP Package ..........................................................................................................................35  
10. Revision History ....................................................................................................................36  
List of Figures  
Figure 1. RESET Timing ........................................................................................................................................12  
Figure 2. XTI Timing ..............................................................................................................................................12  
Figure 3. Serial Control Port - SPI Slave Mode Timing ..........................................................................................14  
Figure 4. Serial Control Port - SPI Master Mode Timing ........................................................................................15  
Figure 5. Serial Control Port - I2C Slave Mode Timing ..........................................................................................16  
Figure 6. Serial Control Port - I2C Master Mode Timing ........................................................................................17  
Figure 7. Parallel Control Port - Intel® Mode Read Cycle ......................................................................................19  
Figure 8. Parallel Control Port - Intel Mode Write Cycle ........................................................................................19  
Figure 9. Parallel Control Port - Motorola® Mode Read Cycle Timing ...................................................................21  
Figure 10. Parallel Control Port - Motorola Mode Write Cycle Timing ...................................................................21  
Figure 11. UART Timing ........................................................................................................................................22  
Figure 12. Digital Audio Input (DAI) Port Timing Diagram .....................................................................................23  
Figure 13. Direct Stream Digital - Serial Audio Input Timing ..................................................................................24  
Figure 14. Digital Audio Port Timing, MCLK Master Mode ....................................................................................25  
Figure 15. External Memory Interface - Flash Write Cycle Timing .........................................................................27  
Figure 16. External Memory Interface - Flash Read Cycle Timing ........................................................................27  
Figure 17. External Memory Interface - SDRAM Burst Read Cycle .......................................................................29  
Figure 18. External Memory Interface - SDRAM Burst Write Cycle .......................................................................29  
Figure 19. External Memory Interface - SDRAM Auto Refresh Cycle ....................................................................30  
Figure 20. External Memory Interface - SDRAM Load Mode Register Cycle ........................................................30  
Figure 21. 128-Pin LQFP Pin-Out Drawing ............................................................................................................32  
Figure 22. 144-Pin LQFP Pin-Out Drawing ............................................................................................................33  
Figure 23. 128-Pin LQFP Package Drawing .........................................................................................................34  
Figure 24. 144-Pin LQFP Package Drawing .........................................................................................................35  
List of Tables  
Table 1. CS4953xx Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Table 2. Device and Firmware Selection Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
Table 3. CS495303 DSP Memory Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Table 4. CS495313 DSP Memory Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Table 5. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Table 6. Environmental, Manufacturing, & Handling Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Table 7. 128-Pin LQFP Package Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34  
Table 8. 144-Pin LQFP Package Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
3
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
1. Documentation Strategy  
The CS4953xx Datasheet describes the CS4953xx family of multichannel audio decoders. This document  
should be used in conjunction with the following documents when evaluating or designing a system around the  
CS4953xx family of processors.  
Table 1. CS4953xx Related Documentation  
Document Name  
Description  
CS4953xx Datasheet  
This document  
Includes detailed system design information including  
Typical Connection Diagrams, Boot-Procedures, Pin  
Descriptions, Etc.  
CS4953xx Hardware User’s Manual  
Includes detailed firmware design information  
including signal processing flow diagrams and control  
API information  
AN288 - CS4953xx Firmware User’s Manual  
The scope of the CS4953xx Datasheet is primarily the hardware specifications of the CS4953xx family of  
devices. This includes hardware functionality, characteristic data, pinout, and packaging information.  
The intended audience for the CS4953xx Data Sheet is the system PCB designer, mcu programmer, and the  
quality control engineer.  
2. Overview  
The CS4953xx DSP Family, together with Cirrus Logic’s comprehensive library of audio processing algorithms,  
enables the development of next-generation audio solutions. Cirrus Logic also provides a broad array of digital  
interface products, audio converters, and ARM® Processors to meet your audio system-level design  
requirements.  
There are two devices in the CS4953xx DSP family. The CS495303 and CS495313 are differentiated by  
internal memory size and DSP Firmware. The CS495303 is available in a 128-pin QFP package and the  
CS495313 is available in either a 128-pin or 144-pin QFP package. The audio processing features of the  
CS495313 are a superset of audio features available in the CS495303. Please refer to Table 2 on page 6 for  
the speed and firmware features of each device.  
2.1 Migrating from the CS495xx(2) to the CS4953xx  
The CS4953xx was designed to provide an easy upgrade path from the CS495xx(2). Although 144-pin  
versions of the two devices are virtually identical with respect to external system connection, there are some  
small differences the hardware designer should be aware of:  
• The PLL supply voltage on the CS4953xx is 3.3V vs. 1.8V on the CS495xx(2).  
• The PLL filter topology is simpler when using the CS4953xx rather than the CS495xx(2).  
• The CS4953xx adds support for 6-channel DSD input.  
• The CS4953xx adds support for TDM mode on both audio input and output ports.  
• The CS4953xx does not support external SRAM operation.  
• The CS4953xx external SDRAM bus speed is fixed at 150 MHz vs. the 120 MHz max bus speed for the  
CS495xx(2). Some firmware modules also support a 75 MHz CS4953xx SDRAM bus speed. Please refer  
to AN288 for details.  
• The CS4953xx CLKOUT pin can output XTALI or XTALI/2. The CS495xx(2) can only output XTALI.  
2.2 Licensing  
Licenses are required for all of the 3rd party audio decoding/processing algorithms listed below, including the  
application notes. Please contact your local Cirrus Sales representative for more information.  
4
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
3. Code Overlays  
The suite of software available for the CS4953xx family consists of an operating system (OS) and a library of  
overlays. The overlays have been divided into three main groups called Decoders, Mid-processors, and Post-  
processors. All software components are defined below:  
1. OS/Kernel - Encompasses all non-audio processing tasks, including loading data from external memory,  
processing host messages, calling audio-processing subroutines, error concealment, etc.  
2. Decoders - Any Module that initially writes data into the audio I/O buffers, e.g. AC-3®, DTS, PCM, etc. All the  
decoding/processing algorithms listed below require delivery of PCM or IEC61937-packed, compressed data  
via I2S- or LJ-formatted digital audio to the CS4953xx.  
3. Mid-processors - Any module that processes audio I/O buffer PCM data in-place before the Post-  
processors. Generally speaking, these modules alter the number of valid channels in the audio I/O buffer  
through processes like Virtualization (nÖ2 channels) or Matrix Decoding (2Ön channels). Examples are Dolby  
ProLogic IIx and DTS Neo:6.  
4. Post-processors - Any module that processes audio I/O buffer PCM data in-place after the Mid-Processors.  
Examples are Bass Management, Audio Manager, Tone Control, EQ, Delay, Customer-specific Effects, Dolby  
Headphone/Virtual Speaker, etc.  
The overlay structure reduces the time required to reconfigure the DSP when a processing change is  
requested. Each overlay can be reloaded independently without disturbing the other overlays. For example,  
when a new decoder is selected, the OS, mid-, and post-processors do not need to be reloaded — only the  
new decoder (the same is true for the other overlays).  
Table 2 below lists the firmware available based on device selection. Please refer AN288 CS4953xx Firmware  
User’s Manual for the latest listing of application codes and Cirrus Frameworkmodules available.  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
5
Table 2. Device and Firmware Selection Guide1  
Pre-  
Process  
Device  
Decode Processor A  
Mid-processor A  
Mid-processor B  
Post-processor B  
Dolby PLIIx  
Stereo PCM  
®
Circle Surround II  
Dolby Headphone  
Dolby Virtual Speaker  
SRSTruSurround XT  
THX Select  
Multi-Channel PCM  
(2:1 Down-sampling Option)  
(Stereo In)  
CS495303  
APP  
Cirrus Original Multi-  
Channel Surround (Effects  
/ Reverb Processor)  
N/A  
(Advanced Post-processing)  
300 MIPS  
Dolby Digital  
AAC  
Tone Control  
–Re-EQ  
–PEQ (up to 11 Bands)  
–Delay  
–7.1 Bass Manager  
–Audio Manager  
MP3  
HDCD  
Down-mix  
(Simultaneous Process)  
CS495313  
(Superset of  
CS495303)  
Same as CS495303 +  
DTS  
Same as CS495303 +  
1:2 Up-sampling  
Lip Sync  
Delay  
Same as CS495303 +  
THX Ultra2  
DTS Neo:6  
(Stereo In)  
DTS-ES  
DTS 96/24  
300 MIPS  
1.This feature list is a snapshot of features available as of the publication date of this revision of the data sheet. More features may  
now be available. Check with your Cirrus Logic Field Application Engineer (FAE) to obtain the latest feature list for the CS495303  
and CS495313 products.  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
4. Hardware Functional Description  
4.1 DSP Core  
The CS4953xx is a dual-core DSP with separate X and Y data and P code memory spaces. Each core is a  
high-performance, 32-bit, user-programmable, fixed-point DSP that is capable of performing two memory  
access control (MAC) operations per clock cycle. Each core has eight 72-bit accumulators, four X- and four Y-  
data registers, and 12 index registers.  
Both DSP cores are coupled to a flexible DMA engine. The DMA engine can move data between peripherals  
such as the digital audio input (DAI) and digital audio output (DAO), external memory, or any DSP core  
memory, all without the intervention of the DSP. The DMA engine offloads data move instructions from the DSP  
core, leaving more MIPS available for signal processing instructions.  
CS4953xx functionality is controlled by application codes that are stored in on-board ROM or downloaded to  
the CS4953xx from a host mcu or external FLASH/EEPROM. Users can choose to use standard audio  
decoder and post-processor modules which are available from Cirrus Logic.  
The CS4953xx is suitable for Audio Decoder, Audio Post-processor, Audio Encoder, DVD Audio/Video Player,  
and Digital Broadcast Decoder applications.  
4.1.1 DSP Memory  
Each DSP core has its own on-chip data and program RAM and ROM and does not require external memory  
for any of today’s popular audio algorithms including Dolby Digital Surround EX, AAC Multichannel, DTS-ES  
96/24, and THX Ultra2.  
The memory maps for the DSPs are as follows. All memory sizes are composed of 32-bit words.  
Table 3. CS495303 DSP Memory Sizes  
Memory  
DSP A  
DSP B  
Type  
X
Y
P
16k SRAM, 16k ROM  
16k SRAM, 32k ROM  
8k SRAM, 32k ROM  
10k SRAM, 8k ROM  
16k SRAM, 16k ROM  
8k SRAM, 24k ROM  
Table 4. CS495313 DSP Memory Sizes  
Memory  
Type  
DSP A  
DSP B  
X
Y
P
16k SRAM, 16k ROM  
24k SRAM, 32k ROM  
8k SRAM, 32k ROM  
10k SRAM, 8k ROM  
16k SRAM, 16k ROM  
8k SRAM, 24k ROM  
4.1.2 DMA Controller  
The powerful 12-channel DMA controller can move data between 8 on-chip resources. Each resource has its  
own arbiter: X, Y, and P RAM/ROMs on DSP A; X, Y, and P RAM/ROMs on DSP B; external memory; and the  
peripheral bus. Modulo and linear addressing modes are supported, with flexible start address and increment  
controls. The service interval for each DMA channel as well as up to 6 interrupt events, is programmable.  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
7
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
4.2 On-chip DSP Peripherals  
4.2.1 Digital Audio Input Port (DAI)  
The 12-channel (6 line) DAI port supports a wide variety of data input formats. The port is capable of accepting  
PCM, IEC61937, or DSD. Up to 32-bit word lengths are supported. Up to 6 channels of DSD are supported and  
internally converted to PCM before processing.  
The port has two independent slave-only clock domains. Each data input can be independently assigned to a  
clock domain. The sample rate of the input clock domains can be determined automatically by the DSP, which  
off-loads the task of monitoring the S/PDIF receiver from the host. A time-stamping feature allows the input  
data to be sample-rate converted via software.  
4.2.2 Digital Audio Output Port (DAO)  
There are two DAO ports. Each port can output 8 channels of up to 32-bit PCM data. The port supports data  
rates from 32 kHz to 192 kHz. Each port can be configured as an independent clock domain in slave mode, or  
the ratio of the two clocks can be set to even multiples of each other in master mode. The two ports can also be  
ganged together into a single clock domain. Each port has one serial audio pin that can be configured as a 192  
kHz S/PDIF transmitter (data with embedded clock on a single line).  
Note: Only one S/PDIF transmitter pin is available in the 128-pin package.  
4.2.3 Serial Control Port 1 & 2 (I2C® or SPI)  
There are two on-chip serial control ports that are capable of operating as master or slave in either I2C or SPI  
modes. SCP1 defaults to slave operation. It is dedicated for external host-control and supports an external  
clock up to 50 MHz in SPI mode. It is present in both the 144- and 128-pin packages. This high clock speed  
enables very fast code download, control or data delivery. SCP2 defaults to master mode and is dedicated for  
booting from external serial Flash memory or for audio sub-system control. SCP2 does not include the  
SCP2_BSY# pin in the 128-pin package.  
4.2.4 Parallel Control Port  
The CS4953xx parallel port supports both Motorola® and Intel® interfaces. It can be used for both control and  
data delivery. The parallel port pins are multiplexed with serial control port 2 and are available in the 144-pin  
package.  
4.2.5 External Memory Interface  
The external memory interface controller supports up to 128 Mbits of SDRAM, using a 16-bit data bus. The  
memory controller supports up to 1 MB of Flash memory in 8-bit data bus-width mode or 2 MB in 16-bit data  
bus-width mode.  
4.2.6 GPIO  
Many of the CS4953xx peripheral pins are multiplexed with GPIO. Each GPIO can be configured as an output,  
an input, or an input with interrupt. Each input-pin interrupt can be configured as rising edge, falling edge,  
active-low, or active-high.  
4.2.7 PLL-based Clock Generator  
The low-jitter PLL generates integer or fractional multiples of a reference frequency which are used to clock the  
DSP core and peripherals. Through a second PLL divider chain, a dependent clock domain can be output on  
the DAO port for driving audio converters. The CS4953xx defaults to running from the external reference  
frequency and can be switched to use the PLL output after overlays have been loaded and configured, either  
through master boot from an external serial FLASH or through host control. A built-in crystal oscillator circuit  
with a buffered output is provided. The buffered output frequency ratio is selectable between 1:1 (default) or  
2:1.  
8
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
4.3 DSP I/O Description  
4.3.1 Multiplexed Pins  
Many of the CS4953xx pins are multi-functional. For details on pin functionality please refer to the CS4953xx  
Hardware User’s Manual.  
4.3.2 Termination Requirements  
Open-drain pins on the CS4953xx must be pulled high for proper operation. Please refer to the CS4953xx  
Hardware User’s Manual to identify which pins are open-drain and what value of pull-up resistor is required for  
proper operation.  
Mode select pins on the CS4953xx are used to select the boot mode upon the rising edge of reset. A detailed  
explanation of termination requirements for each communication mode select pin can be found in the  
CS4953xx Hardware User’s Manual.  
4.3.3 Pads  
The CS4953xx I/O operates from the 3.3 V supply and is 5V tolerant.  
4.4 Application Code Security  
The external program code may be encrypted by the programmer to protect any intellectual property it may  
contain. A secret, customer-specific key is used to encrypt the program code that is to be stored external to the  
device.  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
9
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5. Characteristics and Specifications  
Note: All data sheet minimum and maximum timing parameters are guaranteed over the rated voltage and  
temperature. All data sheet typical parameters are measured under the following conditions:  
T = 25 °C, CL = 20 pF, VDD = VDDA = 1.8 V, VDDIO = 3.3 V, GNDD = GNDIO = GNDA = 0 V.  
5.1 Absolute Maximum Ratings  
(GNDD = GNDIO = GNDA = 0 V; all voltages with respect to 0 V)  
Parameter  
Symbol  
Min  
Max  
Unit  
DC power supplies:  
Core supply  
PLL supply  
I/O supply  
VDD  
VDDA  
VDDIO  
–0.3  
–0.3  
–0.3  
-
2.0  
3.6  
3.6  
0.3  
V
V
V
V
|VDDA – VDDIO|  
Input pin current, any pin except supplies  
Input voltage on PLL_REF_RES  
Input voltage on I/O pins  
Iin  
-
+/- 10  
3.6  
mA  
V
Vfilt  
Vinio  
Tstg  
-0.3  
-0.3  
65  
5.0  
V
Storage temperature  
150  
°C  
CAUTION: Operation at or beyond these limits may result in permanent damage to the device. Normal operation  
is not guaranteed at these extremes.  
5.2 Recommended Operating Conditions  
(GNDD = GNDIO = GNDA = 0 V; all voltages with respect to 0 V)  
Parameter  
Symbol  
Min  
Typ  
Max  
Unit  
DC power supplies:  
Core supply  
PLL supply  
I/O supply  
VDD  
VDDA  
VDDIO  
1.71  
3.13  
3.13  
1.8  
3.3  
3.3  
0
1.89  
3.46  
3.46  
V
V
V
V
|VDDA – VDDIO|  
Ambient operating temperature  
TA  
-
°C  
0
- 40  
+ 70  
+ 85  
- CQ  
- DQ  
Note: It is recommended that the 3.3 V IO supply come up ahead of or simultaneously with the 1.8 V core supply.  
5.3 Digital DC Characteristics  
(Measurements performed under static conditions.)  
Parameter  
High-level input voltage  
Symbol  
VIH  
Min  
Typ  
Max  
-
Unit  
V
2.0  
-
-
Low-level input voltage, except XTI  
Low-level input voltage, XTI  
Input Hysteresis  
VIL  
-
-
0.8  
0.6  
V
VILXTI  
Vhys  
-
V
0.4  
-
V
High-level output voltage (IO = -4mA), except XTI,  
SDRAM pins  
VOH  
VDDIO * 0.9  
-
-
V
Low-level output voltage (IO = 4mA), except XTI, SDRAM  
pins  
VOL  
-
VDDIO * 0.1  
V
SDRAM High-level output voltage (IO = -8mA)  
SDRAM Low-level output voltage (IO = 8mA)  
VOH  
VOL  
IIN  
VDDIO * 0.9  
-
-
-
-
V
V
-
-
VDDIO * 0.1  
5
Input leakage current (all digital pins with internal pull-up  
resistors disabled)  
μA  
Input leakage current (all digital pins with internal pull-up  
resistors enabled, and XTI)  
IIN-PU  
-
-
50  
μA  
10  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.4 Power Supply Characteristics  
(measurements performed under operating conditions)  
Parameter  
Min  
Typ  
Max  
Unit  
Power supply current:  
Core and I/O operating: VDD1  
PLL operating: VDDA  
With external memory and most ports operating: VDDIO  
-
-
-
500  
3.5  
120  
-
-
-
mA  
mA  
mA  
1. Dependent on application firmware and DSP clock speed.  
5.5 Thermal Data (144 LQFP)  
Parameter  
Symbol  
Min  
Typ  
Max  
Unit  
Thermal Resistance (Junction to Ambient)  
Two-layer Board1  
θja  
°C / Watt  
-
-
48  
40  
-
-
Four-layer Board2  
Thermal Resistance (Junction to Top of Package)  
Two-layer Board1  
ψjt  
°C / Watt  
-
-
.39  
.33  
-
-
Four-layer Board2  
5.6 Thermal Data (128 LQFP)  
Parameter  
Symbol  
Min  
Typ  
Max  
Unit  
Thermal Resistance (Junction to Ambient)  
Two-layer Board1  
θja  
°C / Watt  
-
-
53  
44  
-
-
Four-layer Board2  
Thermal Resistance (Junction to Top of Package)  
Two-layer Board1  
ψjt  
°C / Watt  
-
-
.45  
.39  
-
-
Four-layer Board2  
Notes: 1. Two-layer board is specified as a 76 mm X 114 mm, 1.6 mm thick FR-4 material with 1-oz copper covering 20 %  
of the top & bottom layers.  
2. Four-layer board is specified as a 76 mm X 114 mm, 1.6 mm thick FR-4 material with 1-oz copper covering 20 %  
of the top & bottom layers and 0.5-oz copper covering 90 % of the internal power plane and ground plane layers.  
3. To calculate the die temperature for a given power dissipation  
4. Τj = Ambient Temperature + [ (Power Dissipation in Watts) * θja ]  
5. To calculate the case temperature for a given power dissipation  
6. Τc = Τj - [ (Power Dissipation in Watts) * ψ jt ]  
5.7 Switching Characteristics— RESET  
Parameter  
RESET# minimum pulse width low  
Symbol  
Trstl  
Min  
1
Max  
Unit  
μs  
-
All bidirectional pins high-Z after RESET# low  
Configuration pins setup before RESET# high  
Configuration pins hold after RESET# high  
Trst2z  
-
100  
ns  
Trstsu  
50  
20  
-
-
ns  
Trsthld  
ns  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
11  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
RESET#  
HS[3:0]  
All Bidirectional  
Pins  
Trstsu  
Trsthld  
Trst2z  
Trstl  
Figure 1. RESET Timing  
5.8 Switching Characteristics — XTI  
Parameter  
External Crystal operating frequency1  
XTI period  
Symbol  
Fxtal  
Min  
11.2896  
33.3  
Max  
27  
100  
-
Unit  
MHz  
ns  
Tclki  
XTI high time  
Tclkih  
Tclkil  
13.3  
ns  
XTI low time  
13.3  
-
ns  
External Crystal Load Capacitance (parallel resonant)2  
CL  
10  
18  
50  
pF  
External Crystal Equivalent Series Resistance  
ESR  
W
1. Part characterized with the following crystal frequency values: 11.2896, 12.288, 18.432, 24.576, & 27 MH.z.  
2. CL refers to the total load capacitance as specified by the crystal manufacturer. Crystals which require a CL outside  
this range should be avoided. The crystal oscillator circuit design should follow the crystal manufacturer’s  
recommendation for load capacitor selection.  
XTI  
tclkih  
tclkil  
Tclki  
Figure 2. XTI Timing  
12  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.9 Switching Characteristics — Internal Clock  
Parameter  
Symbol  
Min  
Max  
Unit  
Internal DCLK frequency1  
CS49530x-CVZ  
CS49531x-CQZ  
CS49531x-CVZ  
CS49530x-DVZ  
CS49531x-DQZ  
CS49531x-DVZ  
Fdclk  
-
MHz  
Fxtal  
Fxtal  
Fxtal  
Fxtal  
Fxtal  
Fxtal  
150  
150  
150  
TBD  
TBD  
TBD  
Internal DCLK period1  
CS49530x-CVZ  
CS49531x-CQZ  
CS49531x-CVZ  
CS49530x-DVZ  
CS49531x-DQZ  
CS49531x-DVZ  
DCLKP  
-
ns  
6.7  
6.7  
6.7  
TBD  
TBD  
TBD  
1/Fxtal  
1/Fxtal  
1/Fxtal  
1/Fxtal  
1/Fxtal  
1/Fxtal  
1. After initial power-on reset, Fdclk = Fxtal. After initial kickstart commands, the PLL is locked to max Fdclk and remains  
locked until the next power-on reset.  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
13  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.10 Switching Characteristics — Serial Control Port - SPI Slave Mode.  
Parameter  
SCP_CLK frequency1  
Symbol  
fspisck  
tspicss  
tspickl  
Min  
-
Typical  
Max  
Units  
MHz  
ns  
25  
-
SCP_CS# falling to SCP_CLK rising  
SCP_CLK low time  
24  
20  
20  
5
-
ns  
SCP_CLK high time  
tspickh  
tspidsu  
tspidh  
-
ns  
Setup time SCP_MOSI input  
-
ns  
Hold time SCP_MOSI input  
5
-
ns  
SCP_CLK low to SCP_MISO output valid  
SCP_CLK falling to SCP_IRQ# rising  
SCP_CS# rising to SCP_IRQ# falling  
SCP_CLK low to SCP_CS# rising  
SCP_CS# rising to SCP_MISO output high-Z  
SCP_CLK rising to SCP_BSY# falling  
tspidov  
tspiirqh  
tspiirql  
-
11  
20  
ns  
-
ns  
0
ns  
tspicsh  
tspicsdz  
tspicbsyl  
24  
-
-
ns  
20  
ns  
-
3 DCLKP+20  
ns  
*
1. The specification fspisck indicates the maximum speed of the hardware. The system designer should be aware that  
the actual maximum speed of the communication port may be limited by the firmware application. Flow control using  
the SCP_BSY# pin should be implemented to prevent overflow of the input data buffer. At boot the maximum speed  
is Fxtal/3.  
tspicss  
SCP_CS#  
tspickl  
tspicsh  
1
2
6
7
0
7
0
5
6
SCP_CLK  
SCP_MOSI  
SCP_MISO  
SCP_IRQ#  
SCP_BSY#  
fspisck  
tspickh  
A6  
A5  
A0  
R/W  
MSB  
MSB  
LSB  
LSB  
tspidsu  
tspidh  
tspidov  
tspicsdz  
tspiirqh  
tspiirql  
tspibsyl  
Figure 3. Serial Control Port - SPI Slave Mode Timing  
14  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.11 Switching Characteristics — Serial Control Port - SPI Master Mode  
Parameter  
SCP_CLK frequency1  
SCP_CS# falling to SCP_CLK rising 3  
Symbol Min  
Typical  
Max  
Fxtal/22  
-
Units  
MHz  
ns  
fspisck  
tspicss  
-
-
11*DCLKP +  
(SCP_CLK PERIOD)/2  
SCP_CLK low time  
tspickl  
tspickh  
tspidsu  
tspidh  
18  
18  
11  
5
-
-
ns  
ns  
ns  
ns  
ns  
ns  
ns  
SCP_CLK high time  
Setup time SCP_MISO input  
Hold time SCP_MISO input  
SCP_CLK low to SCP_MOSI output valid  
SCP_CLK low to SCP_CS# falling  
SCP_CLK low to SCP_CS# rising  
-
-
tspidov  
tspicsl  
tspicsh  
-
11  
-
7
-
11*DCLKP +  
-
(SCP_CLK PERIOD)/2  
Bus free time between active SCP_CS#  
tspicsx  
tspidz  
3*DCLKP  
-
ns  
ns  
SCP_CLK falling to SCP_MOSI output high-Z  
-
20  
1. The specification fspisck indicates the maximum speed of the hardware. The system designer should be aware that  
the actual maximum speed of the communication port may be limited by the firmware application.  
2. See Section 5.8.  
3. SCP_CLK PERIOD refers to the period of SCP_CLK as being used in a given application. It does not refer to a  
tested parameter  
.
tspicsx  
tspicss  
EE_CS#  
tspickl  
tspicsh  
tspicsl  
1
2
6
7
0
7
0
5
6
SCP_CLK  
SCP_MISO  
SCP_MOSI  
fspisck  
tspickh  
A6  
A5  
A0  
R/W  
MSB  
MSB  
LSB  
LSB  
tspidsu  
tspidh  
tspidov  
tspidz  
Figure 4. Serial Control Port - SPI Master Mode Timing  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
15  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
2
5.12 Switching Characteristics — Serial Control Port - I C Slave Mode  
Parameter  
Symbol Min  
Typical  
Max  
Units  
kHz  
µs  
SCP_CLK frequency1  
SCP_CLK low time  
SCP_CLK high time  
fiicck  
tiicckl  
tiicckh  
-
400  
1.25  
1.25  
1.25  
-
-
µs  
SCP_SCK rising to SCP_SDA rising or falling for START or tiicckcmd  
STOP condition  
µs  
START condition to SCP_CLK falling  
tiicstscl  
tiicstp  
tiicbft  
1.25  
2.5  
3
-
-
-
µs  
µs  
µs  
ns  
ns  
ns  
ns  
ns  
ns  
SCP_CLK falling to STOP condition  
Bus free time between STOP and START conditions  
Setup time SCP_SDA input valid to SCP_CLK rising  
Hold time SCP_SDA input after SCP_CLK falling  
SCP_CLK low to SCP_SDA out valid  
tiicsu  
100  
20  
-
tiich  
-
tiicdov  
tiicirqh  
tiicirql  
tiicbsyl  
18  
SCP_CLK falling to SCP_IRQ# rising  
NAK condition to SCP_IRQ# low  
-
3 DCLKP + 40  
*
3 DCLKP + 20  
*
SCP_CLK rising to SCB_BSY# low  
-
3 DCLKP + 20  
*
1. The specification fiicck indicates the maximum speed of the hardware. The system designer should be aware that  
the actual maximum speed of the communication port may be limited by the firmware application. Flow control  
using the SCP_BSY# pin should be implemented to prevent overflow of the input data buffer.  
tiicckcmd  
tiicckl  
tiicr  
tiicf  
tiicckcmd  
0
1
6
7
8
0
1
6
7
8
SCP_CLK  
SCP_SDA  
SCP_IRQ#  
SCP_BSY#  
tiicstp  
tiicstscl  
tiicckh  
tiicdov  
R/W  
fiicck  
tiicbft  
A6  
A0  
ACK  
MSB  
ACK  
LSB  
tiicirqh  
tiicirql  
tiicsu  
tiich  
tiiccbsyl  
Figure 5. Serial Control Port - I2C Slave Mode Timing  
16  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
2
5.13 Switching Characteristics — Serial Control Port - I C Master Mode  
Parameter  
Symbol  
fiicck  
Min  
-
Max  
Units  
kHz  
µs  
SCP_CLK frequency1  
SCP_CLK low time  
SCP_CLK high time  
400  
tiicckl  
1.25  
1.25  
1.25  
-
-
tiicckh  
µs  
SCP_SCK rising to SCP_SDA rising or falling for START or STOP  
condition  
tiicckcmd  
µs  
START condition to SCP_CLK falling  
tiicstscl  
tiicstp  
tiicbft  
tiicsu  
tiich  
1.25  
2.5  
3
-
-
-
µs  
µs  
µs  
ns  
ns  
ns  
SCP_CLK falling to STOP condition  
Bus free time between STOP and START conditions  
Setup time SCP_SDA input valid to SCP_CLK rising  
Hold time SCP_SDA input after SCP_CLK falling  
SCP_CLK low to SCP_SDA out valid  
100  
20  
-
-
tiicdov  
18  
1. The specification fiicck indicates the maximum speed of the hardware. The system designer should be aware that  
the actual maximum speed of the communication port may be limited by the firmware application.  
tiicckcmd  
tiicckl  
tiicr  
tiicf  
tiicckcmd  
0
1
6
7
8
0
1
6
7
8
SCP_CLK  
SCP_SDA  
tiicstp  
tiicstscl  
tiicckh  
tiicdov  
R/W  
fiicck  
tiicbft  
A6  
A0  
ACK  
MSB  
ACK  
LSB  
tiicsu  
tiich  
Figure 6. Serial Control Port - I2C Master Mode Timing  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
17  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
®
5.14 Switching Characteristics — Parallel Control Port - Intel Slave Mode  
Parameter  
Symbol Min  
Typical  
Max Unit  
Address setup before PCP_CS# and PCP_RD# low or PCP_CS#  
and PCP_WR# low  
tias  
5
-
ns  
Address hold time after PCP_CS# and PCP_RD# low or PCP_CS#  
and PCP_WR# high  
tiah  
5
-
ns  
Read  
Delay between PCP_RD# then PCP_CS# low or PCP_CS# then  
PCP_RD# low  
ticdr  
0
-
ns  
Data valid after PCP_CS# and PCP_RD# low  
PCP_CS# and PCP_RD# low for read  
tidd  
tirpw  
tidhr  
tidis  
tird  
-
24  
8
18  
-
ns  
ns  
ns  
ns  
ns  
Data hold time after PCP_CS# or PCP_RD# high  
Data high-Z after PCP_CS# or PCP_RD# high  
-
-
18  
-
PCP_CS# or PCP_RD# high to PCP_CS# and PCP_RD# low for  
next read1  
30  
PCP_CS# or PCP_RD# high to PCP_CS# and PCP_WR# low for  
next write1  
tirdtw  
30  
-
-
ns  
ns  
PCP_RD# rising to PCP_IRQ# rising  
tirdirqhl  
12  
Write  
Delay between PCP_WR# then PCP_CS# low or PCP_CS# then  
PCP_WR# low  
ticdw  
0
-
ns  
Data setup before PCP_CS# or PCP_WR# high  
PCP_CS# and PCP_WR# low for write  
tidsu  
tiwpw  
tidhw  
tiwtrd  
8
24  
8
-
-
-
-
ns  
ns  
ns  
ns  
Data hold after PCP_CS# or PCP_WR# high  
PCP_CS# or PCP_WR# high to PCP_CS# and PCP_RD# low for  
next read1  
30  
PCP_CS# or PCP_WR# high to PCP_CS# and PCP_WR# low for  
next write1  
tiwd  
30  
-
ns  
PCP_WR# rising to PCP_BSY# falling  
tiwrbsyl  
-
2*DCLKP + 20  
-
ns  
1. The system designer should be aware that the actual maximum speed of the communication port may be limited by  
the firmware application. Hardware handshaking on the PCP_BSY# pin/bit should be observed to prevent  
overflowing the input data buffer. AN288 CS4953xx Firmware Uses’s Manual should be consulted for the firmware  
speed limitations.  
18  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
PCP_A[3:0]  
PCP_D[7:0]  
PCP_CS#  
PCP_WR#  
PCP_RD#  
PCP_IRQ#  
tiah  
LSP  
tidhr  
MSP  
tias  
tidd  
ticdr  
tidis  
tirpw  
tird  
tirdtw  
tirdirqh  
Figure 7. Parallel Control Port - Intel® Mode Read Cycle  
PCP_A[3:0]  
PCP_D[7:0]  
PCP_CS#  
PCP_RD#  
PCP_WR#  
PCP_BSY#  
tiah  
LSP  
MSP  
tias  
tidhw  
ticdw  
tidsu  
tiwpw  
tiwd  
tiwtrd  
tiwrbsyl  
Figure 8. Parallel Control Port - Intel Mode Write Cycle  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
19  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
®
5.15 Switching Characteristics — Parallel Control Port - Motorola Slave Mode  
Parameter  
Symbol Min  
Max  
Unit  
ns  
Address setup before PCP_CS# and PCP_DS# low  
Address hold time after PCP_CS# and PCP_DS# low  
tmas  
tmah  
5
5
-
-
ns  
Read  
Delay between PCP_DS# then PCP_CS# low or PCP_CS# then  
PCP_DS# low  
tmcdr  
0
-
ns  
Data valid after PCP_CS# and PCP_DS# low with PCP_R/W# high  
PCP_CS# and PCP_DS# low for read  
tmdd  
tmrpw  
tmdhr  
tmdis  
tmrd  
-
24  
8
19  
-
ns  
ns  
ns  
ns  
ns  
Data hold time after PCP_CS# or PCP_DS# high after read  
Data high-Z after PCP_CS# or PCP_DS# high after read  
-
-
18  
-
PCP_CS# or PCP_DS# high to PCP_CS# and PCP_DS# low for  
next read1  
30  
PCP_CS# or PCP_DS# high to PCP_CS# and PCP_DS# low for  
next write1  
tmrdtw  
30  
-
-
ns  
ns  
PCP_RW# rising to PCP_IRQ# falling  
tmrwirqh  
12  
Write  
Delay between PCP_DS# then PCP_CS# low or PCP_CS# then  
PCP_DS# low  
tmcdw  
0
-
ns  
Data setup before PCP_CS# or PCP_DS# high  
PCP_CS# and PCP_DS# low for write  
tmdsu  
tmwpw  
tmrwsu  
tmrwhld  
tmdhw  
tmwtrd  
8
24  
24  
8
-
-
-
-
-
-
ns  
ns  
ns  
ns  
ns  
ns  
PCP_R/W# setup before PCP_CS# AND PCP_DS# low  
PCP_R/W# hold time after PCP_CS# or PCP_DS# high  
Data hold after PCP_CS# or PCP_DS# high  
8
PCP_CS# or PCP_DS# high to PCP_CS# and PCP_DS# low with  
PCP_R/W# high for next read1  
30  
PCP_CS# or PCP_DS# high to PCP_CS# and PCP_DS# low for  
next write1  
tmwd  
30  
-
ns  
PCP_RW# rising to PCP_BSY# falling  
tmrwbsyl  
-
2*DCLKP + 20  
-
ns  
1. The system designer should be aware that the actual maximum speed of the communication port may be limited by  
the firmware application. Hardware handshaking on the PCP_BSY# pin/bit should be observed to prevent  
overflowing the input data buffer. AN288 CS4953xx Firmware Uses’s Manual should be consulted for the firmware  
speed limitations.  
20  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
HADDR[3:0]  
HDATA[7:0]  
HEN  
tmas  
tmah  
LSP  
tmdhr  
MSP  
tmdd  
tmrwsu  
tmcdr  
tmdis  
tmrwhld  
HR/W  
tmrdtw  
tmrpw  
tmrd  
HDS  
tmrwirqh  
HREQ  
Figure 9. Parallel Control Port - Motorola® Mode Read Cycle Timing  
HADDR[3:0]  
tmas  
tmah  
LSP  
tmdsu  
MSP  
HDATA[7:0]  
HEN  
tmdhw  
tmrwhld  
tmwpw  
tmcdw  
HR/W  
tmrwsu  
tmwd  
tmwtrd  
HDS  
tmrwirql  
HREQ  
Figure 10. Parallel Control Port - Motorola Mode Write Cycle Timing  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
21  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.16 Switching Characteristics — UART  
Parameter  
UART_CLK period1  
Symbol  
tuclki  
Min  
266  
40  
5
Max  
Unit  
ns  
-
60  
-
UART_CLK duty cycle  
-
%
Setup time for UART_RXD  
tuckrxsu  
tuckrxdv  
tucktxdv  
ttxen  
Hold time for UART_RXD  
5
-
ns  
ns  
ns  
ns  
Delay from CLK transition to TXD transition  
-
29  
?
?
ttxhz  
?
?
1. The minimum clock period is limited to DCLKP/32 or the minimum value, whichever is larger.  
UART_CLK  
tucktxdv  
ttxen  
ttxhz  
UART_TXD  
tuckrxsu  
tuckrxdv  
UART_RXD  
UART_TX_EN  
Figure 11. UART Timing  
22  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.17 Switching Characteristics — Digital Audio Slave Input Port  
Parameter  
Symbol  
Tdaiclkp  
-
Min  
40  
45  
10  
5
Max  
Unit  
ns  
DAI_SCLK period  
-
55  
-
DAI_SCLK duty cycle  
Setup time DAI_DATAn  
Hold time DAI_DATAn  
%
tdaidsu  
tdaidh  
ns  
-
ns  
DAI_SCLK  
tdaidsu  
tdaidh  
DAI_DATAn  
Figure 12. Digital Audio Input (DAI) Port Timing Diagram  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
23  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.18 Switching Characteristics — DSD Slave Input Port  
Parameter  
DSD_SCLK Pulse Width Low  
Symbol  
tsclkl  
tsclkh  
-
Min  
78  
Typ  
Max  
-
-
Unit  
ns  
-
-
-
-
-
-
DSD_SCLK Pulse Width High  
DSD_SCLK Frequency  
78  
ns  
(64x Oversampled)  
1.024  
20  
3.2  
-
MHz  
ns  
DSD_A / _B valid to DSD_SCLK rising setup time  
DSD_SCLK rising to DSD_A or DSD_B hold time  
DSD clock to data transition (Phase Modulation mode)  
tsdlrs  
tsdh  
20  
-
ns  
tdpm  
-20  
20  
ns  
Figure 13. Direct Stream Digital - Serial Audio Input Timing  
5.19 Switching Characteristics — Digital Audio Output Port  
Parameter  
Symbol  
Min  
40  
Max  
Unit  
DAO_MCLK period1  
DAO_MCLK duty cycle1  
Tdaomclk  
-
ns  
%
ns  
%
-
40  
60  
-
DAO_SCLK period for Master or Slave mode2  
DAO_SCLK duty cycle for Master or Slave mode2  
Master Mode (Output A1 Mode)2,3  
Tdaosclk  
-
40  
40  
60  
DAO_SCLK delay from DAO_MCLK rising edge, DAO_MCLK as an  
input  
tdaomsck  
-
19  
ns  
DAO_LRCLK delay from DAO_SCLK transition, respectively4  
DAO_DATA[3:0] delay from DAO_SCLK transition4  
Slave Mode (Output A0 Mode)5  
tdaomstlr  
tdaomdv  
-
-
8
ns  
ns  
10  
DAO_DATA[3..0] delay from DAO_SCLK transition4  
tdaosdv  
15  
ns  
1. CS4953xx has two Digital Audio Output modules having similar signal names ending in 1 and 2. Both DAO ports  
share a common MCLK but have independent SCLKs and LRCLKs.  
2. Master mode timing specifications are characterized, not production tested.  
3. Master mode is defined as the CS4953xx driving both DAO_SCLK, DAO_LRCLK. When MCLK is an input, it is  
divided to produce DAO_SCLK, DAO_LRCLK.  
4. This timing parameter is defined from the non-active edge of DAO_SCLK. The active edge of DAO_SCLK is the  
point at which the data is valid.  
5.Slave mode is defined as DAO_SCLK, DAO_LRCLK driven by an external source.  
24  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
Tdaomclk  
DAO_MCLK  
DAO_SCLK  
DAO_DATAn  
tdaomsck  
tdaomdv , tdaosdv  
tdaomstlr  
tdaomstlr  
DAO_LRCLK  
Figure 14. Digital Audio Port Timing, MCLK Master Mode  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
25  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.20 Switching Characteristics — External Memory Interface - Flash Mode  
Parameter  
Symbol  
Min  
Max Unit  
Write Cycle  
ns  
ns  
ns  
ns  
ns  
ns  
txmwasu  
txmcswe  
txmcswa  
1.2 * DCLKP  
Address Setup time to EXT_WE# falling  
EXT_CS# falling to EXT_WE# falling1  
EXT_CS# falling to EXT_WE# rising1  
(Flash_WEN_CYCLE + 1.2) * DCLKP  
(Flash_WR_CYCLE + 2.2) * DCLKP  
2.2 * DCLKP  
EXT_WE# low time  
txmwp  
txmwdh  
0.9 * DCLKP  
Data Hold after EXT_WE# or EXT_CS# high  
Address Hold from end of write  
EXT_WE# falling to data valid  
EXT_CS# high time2  
txmwah  
0.8 * DCLKP  
txmwedv  
txmcsh  
-
0
ns  
ns  
TBD  
Read Cycle  
Single Word Read Cycle1  
(Flash_RD_CYCLE + 1) * DCLKP  
ns  
ns  
ns  
ns  
ns  
txmrdc  
txmcsoe  
txmrdh  
EXT_CS# falling to EXT_OE# falling1  
Data Hold after EXT_OE# or EXT_CS# high  
Data Input Setup Time  
Flash_OEN_CYCLE * DCLKP + 1  
4
7
txmrdsu  
Bus Turnaround Cycle Delay, Read to Write Cycle or Static  
to Dynamic1, 3  
(Flash_TURN_CYCLE + 1) * DCLKP  
txmturn  
1. The following parameters are set by communication with the application firmware. Please refer to AN288 or  
CS4953xx Firmware Users Manual for more information.  
0 < Flash_WEN_CYCLE < 15  
0 < Flash_WR_CYCLE < 31  
1 < Flash_RD_CYCLE < 31  
0 < Flash_OEN_CYCLE < 15  
4 < Flash_TURN_CYCLE < 15  
2. A data write transaction is either a burst of two 16-bit half words or four 8-bit bytes with EXT_CS# toggling between  
address phases.  
3. A data read transaction is either a burst of two 16-bit half words (as shown) or four 8-bit bytes with EXT_CS#  
remaining asserted between address phases.  
26  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
EXT_A[19:0]  
Valid  
txmcsh  
txmcswa  
EXT_CS1#  
EXT_CS2#  
txmwah  
txmcswe  
txmwp  
EXT_WE#  
txmwasu  
txmwdh  
EXT_D[15:0]  
txmwedv  
Figure 15. External Memory Interface - Flash Write Cycle Timing  
EXT_A[19:0]  
Valid  
txmrdc  
Valid  
txmrdc  
txmturn  
EXT_CS1#  
EXT_CS2#  
txmcsoe  
EXT_OE#  
txmrdh  
txmrdsu  
EXT_D[15:0]  
LSP  
MSP  
Figure 16. External Memory Interface - Flash Read Cycle Timing  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
27  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
5.21 Switching Characteristics — SDRAM Interface  
Refer to Figure 17 through Figure 20.  
(SD_CLKOUT = SD_CLKIN)  
Parameter  
Symbol  
Min  
2.3  
2.3  
-
Typical  
Max  
Unit  
ns  
SD_CLKIN high time  
SD_CLKIN low time  
t
-
-
sdclkh  
t
ns  
sdclkl  
SD_CLKOUT rise/fall time  
t
1
ns  
sdclkrf  
SD_CLKOUT Frequency  
150  
MHz  
%
SD_CLKOUT duty cycle  
-
45  
-
55  
SD_CLKOUT rising edge to signal valid  
Signal hold from SD_CLKOUT rising edge  
SD_CLKOUT rising edge to SD_DQMn valid  
SD_DQMn hold from SD_CLKOUT rising edge  
SD_DATA valid setup to SD_CLKIN rising edge  
SD_DATA valid hold to SD_CLKIN rising edge  
SD_CLKOUT rising edge to ADDRn valid  
t
3.8  
ns  
sdcmdv  
t
1.1  
3.8  
-
-
-
-
-
-
ns  
sdcmdh  
t
-
ns  
sddqv  
t
1.38  
1.3  
1.38  
-
ns  
sddqh  
t
ns  
sddsu  
t
ns  
sddh  
t
3.8  
ns  
sdav  
28  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
SD_CLKOUT  
SD_CS#  
tsdclkrf  
tsdcmdv  
tsdcmdh  
SD_RAS#  
SD_CAS#  
SD_WE#  
tsddqh  
tsddqv  
SD_DQMn  
11  
00  
SD_An  
tsdav  
tsddsu  
tsddh  
CAS=2  
LSP1  
MSP1  
LSP2  
MSP2  
SD_Dn  
LSP0  
MSP0  
LSP3  
MSP3  
SD_CLKIN  
tsdclkl  
tsdclkh  
Figure 17. External Memory Interface - SDRAM Burst Read Cycle  
SD_CLKOUT  
tsdcmdv  
tsdcmdh  
SD_CS#  
SD_RAS#  
SD_CAS#  
SD_WE#  
LSP0  
MSP0  
LSP1  
MSP1  
LSP2  
MSP2  
LSP3  
MSP3  
SD_Dn  
SD_An  
tsdav  
SD_DQMn  
00  
11  
tsddqv  
tsddqh  
Figure 18. External Memory Interface - SDRAM Burst Write Cycle  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
SD_CLKOUT  
tsdcmdv  
tsdcmdv  
tsdcmdh  
SD_CS  
SD_RAS  
SD_CAS  
SD_WE  
SD_DQMn  
SD_ADDRn  
SD_DATAn  
Figure 19. External Memory Interface - SDRAM Auto Refresh Cycle  
SD_CLKOUT  
tsdcmdv  
tsdcmdh  
SD_CS  
SD_RAS  
SD_CAS  
SD_WE  
SD_DQMn  
SD_ADDRn  
SD_DATAn  
OPCODE  
Figure 20. External Memory Interface - SDRAM Load Mode Register Cycle  
30  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
6. Ordering Information  
The CS4953xx family part number is described as follows:  
CS495NNI-XYZ  
where  
NN - Product Number Variant  
I - ROM ID Number  
X - Product Grade  
Y - Package Type  
Z - Lead (Pb) Free  
Table 5. Ordering Information  
Grade Temp. Range  
Part No.  
Package  
CS495303-CVZ  
CS495303-DVZ  
CS495313-CQZ  
CS495313-DQZ  
CS495313-CVZ  
CS495313-DVZ  
Commercial  
Automotive  
Commercial  
Automotive  
Commercial  
Automotive  
0 to +70 °C  
-40 to +85 °C  
0 to +70 °C  
128-pin LQFP  
144-pin LQFP  
128-pin LQFP  
-40 to +85 °C  
0 to +70 °C  
-40 to +85 °C  
Note: Please contact the factory for availability of the -D (automotive grade) package.  
7. Environmental, Manufacturing, & Handling Information  
Table 6. Environmental, Manufacturing, & Handling Information  
Model Number  
Peak Reflow Temp  
MSL Rating*  
Max Floor Life  
CS495303-CVZ  
CS495303-DVZ  
CS495313-CQZ  
CS495313-DQZ  
CS495313-CVZ  
CS495313-DVZ  
260 °C  
3
7 Days  
* MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020.  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
31  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
8. Device Pinout Diagrams  
8.1 128-Pin LQFP Pinout Diagram  
1
5
SD_A0, EXT_A0  
SD_A1, EXT_A1  
GPIO38, PCP_WR# / DS#, SCP2_CLK  
GPIO11, PCP_A3, AS#, SCP2_MISO / SDA  
100  
GPIO10, PCP_A2 / A10, SCP2_MOSI  
VDDIO5  
SD_A2, EXT_A2  
GPOI9, SCP1_IRQ#  
GND4  
GPIO8, PCP_IRQ#, SCP2_IRQ#  
SD_A3, EXT_A3  
SD_A4, EXT_A4  
GPIO7, SCP1_CS#, IOWAIT  
GPIO6, PCP_CS#, SCP2_CS#  
95 VDD4  
EXT_CS2#  
VDDIO7  
GNDIO7  
SD_A5, EXT_A5  
GNDIO4  
10  
15  
20  
25  
30  
35  
GPIO3, DDAC  
GPIO2, UART_TXD  
SD_A6, EXT_A6  
90 SD_A7, EXT_A7  
VDDIO4  
VDD7  
GPIO1, UART_RXD  
GPIO0, UART_CLK  
SD_A8, EXT_A8  
SD_A9, EXT_A9  
GND3  
GND7  
XTAL_OUT  
XTI  
85 SD_A11, EXT_A11  
SD_A12, EXT_A12  
VDD3  
XTO  
GNDA  
128-Pin LQFP  
PLL_REF_RES  
SD_CLKEN  
VDDA (3.3V)  
SD_CLKIN  
VDD8  
80 SD_CLKOUT  
SD_DQM1  
GPIO14, DAI1_DATA3, TM3, DSD3  
GPIO13, DAI1_DATA2, TM2, DSD2  
GND8  
SD_D8, EXT_D8  
SD_D9, EXT_D9  
GNDIO3  
GPIO12, DAI1_DATA1, TM1, DSD1  
DAI1_DATA0, TM0, DSD0  
VDDIO8  
75 SD_D10, EXT_D10  
SD_D11, EXT_D11  
VDDIO3  
DAI1_SCLK, DSD-CLK  
DAI1_LRCLK, DSD4  
SD_D12, EXT_D12  
SD_D13, EXT_D13  
70 SD_D14, EXT_D14  
SD_D15, EXT_D15  
SD_D0, EXT_D0  
GNDIO8  
GPIO42, BDI_REQ# , DAI2_LRCLK, PCP_IRQ# / BSY#  
GPIO43, BDI_CLK, DAI2_SCLK  
BDI_DATA, DAI2_DATA, DSD5  
GPIO26, DAO2_DATA3 / XMTB/UART_TX_EN  
GNDIO2  
DBDA  
DBCK  
EXT_WE#  
65 SD_D1, EXT_D1  
GPIO20, DAO2_DATA2, EE_CS#  
Figure 21. 128-Pin LQFP Pin-Out Drawing  
32  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
8.2 144-Pin LQFP Pinout Diagram  
109  
110  
72 SD_A0, EXT_A0  
SD_A1, EXT_A1  
GPIO9, PCP_A1 / A9  
GPIO8, PCP_A0 / A8  
GPIO7, PCP_AD7 / D7  
GPIO6, PCP_AD6 / D6  
VDDIO7  
70 SD_A2, EXT_A2  
GND4  
69  
SD_A3, EXT_A3  
SD_A4, EXT_A4  
VDD4  
113  
GPIO5, PCP_AD5 / D5  
GPIO4, PCP_AD4 / D4  
GNDIO7  
115  
116  
66  
65  
EXT_CS2#  
SD_A5, EXT_A5  
GNDIO4  
GPIO3, PCP_AD3 / D3  
GPIO2, PCP_AD2 / D2  
VDD7  
63  
60  
57  
SD_A6, EXT_A6  
SD_A7, EXT_A7  
VDDIO4  
119  
120  
GPIO1, PCP_AD1 / D1  
GPIO0, PCP_AD0 / D0  
GND7  
SD_A8, EXT_A8  
SD_A9, EXT_A9  
GND3  
122  
XTAL_OUT  
XTI  
SD_A11, EXT_A11  
SD_A12, EXT_A12  
125  
XTO  
GNDA 126  
NC  
55  
54  
144-Pin LQFP  
VDD3  
SD_CLKEN  
PLL_REF_RES  
SD_CLKIN  
VDDA (3.3V) 129  
VDD8 130  
SD_CLKOUT  
SD_DQM1  
GPIO14, DAI1_DATA3, TM3, DSD3  
GPIO13, DAI1_DATA2, TM2, DSD2  
GND8 133  
50  
47  
SD_D8, EXT_D8  
SD_D9, EXT_D9  
GNDIO3  
GPIO12, DAI1_DATA1, TM1, DSD1  
DAI1_DATA0, TM0, DSD0  
135  
SD_D10, EXT_D10  
SD_D11, EXT_D11  
VDDIO3  
VDDIO8 136  
DAI1_SCLK, DSD-CLK  
DAI1_LRCLK, DSD4  
GNDIO8 139  
140  
45  
44  
SD_D12, EXT_D12  
SD_D13, EXT_D13  
SD_D14, EXT_D14  
GPIO42, BDI_REQ# , DAI2_LRCLK, PCP_IRQ# / BSY#  
GPIO43, BDI_CLK, DAI2_SCLK  
BDI_DATA, DAI2_DATA, DSD5  
GPIO27  
40 SD_D15, EXT_D15  
SD_D0, EXT_D0  
EXT_WE#  
GPIO26 144  
37 SD_D1, EXT_D1  
Figure 22. 144-Pin LQFP Pin-Out Drawing  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
33  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
9. Package Mechanical Drawings  
9.1 128-pin LQFP Package Drawing  
D
D1  
E1  
E
1
e
b
A
A1  
L
Figure 23. 128-Pin LQFP Package Drawing  
Table 7. 128-Pin LQFP Package Characteristics  
MILLIMETERS  
INCHES  
NOM  
DIM  
MIN  
NOM  
MAX  
MIN  
MAX  
A
A1  
b
---  
---  
1.60  
0.15  
0.27  
---  
---  
.063”  
.006”  
.011”  
0.05  
0.17  
---  
.002”  
.007”  
---  
0.22  
.009”  
.866”  
.787”  
.630”  
.551”  
.020”  
3.5  
D
22.00 BSC  
20.00 BSC  
16.00 BSC  
14.00 BSC  
0.50 BSC  
3.5  
D1  
E
E1  
e
q
0°  
7°  
0°  
7°  
L
0.45  
0.60  
0.75  
.018”  
.024”  
.030”  
L1  
1.00 REF  
.039” REF  
TOLERANCES OF FORM AND POSITION  
ddd  
0.08  
.003”  
34  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
9.2 144-Pin LQFP Package  
E
E1  
D D1  
Notes:  
SEATING PLANE  
B
e
b
ddd  
B
1. Controlling dimension is millimeter.  
2. Dimensioning and tolerancing per ASME Y14.5M-  
1994.  
L1  
θ
A
A1  
L
Figure 24. 144-Pin LQFP Package Drawing  
Table 8. 144-Pin LQFP Package Characteristics  
MILLIMETERS  
INCHES  
DIM  
MIN  
NOM  
MAX  
MIN  
NOM  
MAX  
A
A1  
b
---  
---  
1.60  
0.15  
0.27  
---  
---  
---  
.063”  
.006”  
.011”  
0.05  
0.17  
---  
.002”  
.007”  
0.22  
.009”  
.866”  
.787”  
.866”  
.787”  
.020”  
---  
D
22.00 BSC  
20.00 BSC  
22.00 BSC  
20.00 BSC  
0.50 BSC  
---  
D1  
E
E1  
e
q
0°  
7°  
0°  
7°  
L
0.45  
0.60  
0.75  
.018”  
.024”  
.039” REF  
.030”  
L1  
1.00 REF  
TOLERANCES OF FORM AND POSITION  
ddd  
0.08  
.003”  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
35  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
10. Revision History  
Revision  
Date  
FEB 2006  
Changes  
A1  
A2  
Advance release.  
JUN 2006  
Updated part numbers for ordering (Tables 5 & 6), Updated V and V specification to  
OH  
OL  
include the current load used for testing  
A3  
JUL 2006  
Updated part numbers for ordering (Tables 5 &6). Updated text in sections 3 and 4.  
Updated parameter descriptions in sections 5.1 and 5.3. Updated Tspickl, Tspickh, and  
Tspidov timing. Corrected Figure SPI Master Timing to use EE_CS#. Added footnote to  
XTI table. Removed SCLK/LRCLK relative timing from DAI port timing. Removed  
SCLK/LRCLK slave relative timing from DAO port timing.  
A4  
OCT 2007  
Updated the Tspidsu, Tspickl, and Tspickh timing parameters for master mode SPI. This  
applies to both SPI ports.  
PP1  
PP2  
May 28, 2008  
June 20, 2008  
Updated product feature list in Table 2. Updated Figure 21 and Figure 22.  
Added typical crystal frequency values in Table Footnote 1 and Max and Min values of  
F
in Section 5.8. Removed DSD Phase Modulation Mode from Section 5.18.  
xtal  
Removed reference to MCLK in Section 5.18. Redefined Master mode clock  
speed for SCP_CLK in Section 5.11.. Redefined DC leakage characterization  
data in Section 5.3, correcting units of measurement. Modified Footnote 1 under  
Section 5.10.  
36  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
Contacting Cirrus Logic Support  
For all product questions and inquiries contact a Cirrus Logic Sales Representative.  
To find the one nearest to you go to www.cirrus.com.  
IMPORTANT NOTICE  
“Preliminary” product information describes products that are in production, but for which full characterization data is not yet available. Cirrus Logic, Inc. and its sub-  
sidiaries (“Cirrus”) believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and  
is provided “AS IS” without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing  
orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowl-  
edgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, includ-  
ing use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. This document is the property  
of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or  
other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the informa-  
tion only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent does not extend to other copying such as  
copying for general distribution, advertising or promotional purposes, or for creating any work for resale.  
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPER-  
TY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN  
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APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK AND CIRRUS  
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Cirrus Logic, Cirrus, the Cirrus Logic logo designs, DSP Composer, and Cirrus Framework are trademarks of Cirrus Logic, Inc. All other brand and product names in  
this document may be trademarks or service marks of their respective owners.  
Dolby, Dolby Digital, Dolby Headphone, Dolby Virtual Speaker, Dolby Headphone, Pro Logic, AC-3, and Surround EX are registered trademarks of Dolby Laboratories,  
Inc. AAC is a trademark of Dolby Laboratories, Inc. Supply of an implementation of Dolby Technology does not convey a license nor imply a right under any patent,  
or any other industrial or Intellectual Property Right of Dolby Laboratories, to use the Implementation in any finished end-user or ready-to-use final product. It is hereby  
notified that a license for such use is required from Dolby Laboratories.  
DTS and DTS Digital Surround are registered trademarks of the Digital Theater Systems, Inc. DTS Neo:6, DTS-ES 96/24, DTS-ES, DTS 6.1, and DTS 96/24 are  
trademarks of Digital Theater Systems, Inc. It is hereby notified that a third-party license from DTS is necessary to distribute software of DTS in any finished end-user  
or ready-to-use final product.  
THX Technology by Lucasarts Entertainment Company Corporation. THX is a registered trademark of Lucasarts Entertainment Company Corporation. Re-equaliza-  
tion and Ultra 2 are trademarks of Lucasfilm Ltd.  
SRS, Circle Surround and Trusurround XT are registered trademarks of SRS Labs, Inc. Circle Surround II is a trademark of SRS Labs, Inc. The CIRCLE SURROUND  
TECHNOLOGY rights incorporated in the Cirrus Logic chip are owned by SRS Labs, Inc. and by Valence Technology Ltd., and licensed to Cirrus Logic, Inc.  
Users of any Cirrus Logic chip containing enabled CIRCLE SURROUND® TECHNOLOGY (i.e., CIRCLE SURROUND® LICENSEES) must first sign a license to pur-  
chase production quantities for consumer electronics applications which may be granted upon submission of a preproduction sample to, and the satisfactory passing  
of performance verification tests performed by SRS Labs, Inc., or Valence Technology Ltd. E-mail requests for performance specifications and testing rate schedule  
may be made to cslicense@srslabs.com. SRS Labs, Inc. and Valence Technology, Ltd., reserve the right to decline a use license for any submission that does not  
pass performance specifications or is not in the consumer electronics classification.  
All equipment manufactured using any Cirrus Logic chip containing enabled CIRCLE SURROUND® TECHNOLOGY must carry the Circle Surround® logo on the front  
panel in a manner approved in writing by SRS Labs, Inc., or Valence Technology Ltd. If the Circle Surround logo is printed in users manuals, service manuals or  
advertisements, it must appear in a form approved in writing by SRS Labs, Inc., or Valence Technology, Ltd. The rear panel of Circle Surround® products, users  
manuals, service manuals, and all advertising must all carry the legends as described in LICENSOR'S most current version of the CIRCLE SURROUND Trademark  
Usage Manual.  
Microsoft and Windows Media are registered trademarks of Microsoft Corporation. The product includes technology owned by Microsoft Corporation and cannot be  
used or distributed without a license from Microsoft Licensing, Inc.  
, HDCD, High Definition Compatible Digital and Pacific Microsonics Inc. are either registered trademarks or trademarks of Microsoft Corporation in the United  
States and/or other countries. HDCD technology provided under license from Microsoft Corporation. The product's design (and/or software) is covered by one or more  
of the following: 5,479,168; 5,638,074; 5,640,161; 5,808,574; 5,838,274; 5,854,600; 5,864,311; 5,872,531 with other patents pending.  
Supply of this product does not convey a license under the relevant intellectual property of Thomson multimedia and/or Fraunhofer Gesellschaft nor imply any right to  
use this product in any finished end user or ready-to-use final product. An independent license for such use is required. For details, please visit  
http://www.mp3licensing.com.  
Motorola and SPI are trademarks of Motorola, Inc.  
Intel is a registered trademark of Intel Corporation.  
2
I C is a registered trademark of Philips Semiconductor.  
ARM is a registered trademark of ARM Limited.  
Logic7 is a registered trademark of Harmon International Industries, Inc.  
DS705PP2  
®Copyright 2008 Cirrus Logic, Inc.  
37  
CS4953xx Data Sheet  
32-bit Audio Decoder DSP Family  
38  
®Copyright 2008 Cirrus Logic, Inc.  
DS705PP2  

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