CM6632A [CMEDIA]
USB 2.0 High-Definition Audio Processor;
| 型号： | CM6632A |
| 厂家： | 
C-MEDIA ELECTRONICS |
| 描述： | USB 2.0 High-Definition Audio Processor |
| 文件： | 总15页 (文件大小：363K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CM6632A
USB 2.0 High-Definition Audio Processor
DESCRIPTION
FEATURES
The CM6632A is a USB 2.0 high-speed audio processor
that supports the latest USB Audio Device Class V2.0
and high-definition audio processing applications. The
CM6632A provides industry-standard HDA and I2S I/O
interfaces, supports a maximum of 10 channels of
output and 4 channels of input, and also integrates a
192KHz/24-bit S/PDIF transmitter and receiver,
making it very versatile.
USB specification 2.0 high speed-compatible
USB audio device class 2.0/1.0-compatible
USB human interface device (HID) class
1.1-compliant
Support PCM and DSD bit stream output
Supports USB suspend/resume/reset functions
Supports control/interrupt/bulk/isochronous
data transfers
Five pairs of I2S or left-justified serial audio
output interfaces (8+2-ch out)
Furthermore, the CM6632A has an embedded 8051
microprocessor that can enhance the flexibility and
functionality with external upgradeable ROM codes.
The CM6632A is the most powerful audio core for your
high-value USB2.0 audio products.
Two pairs of I2S or left-justified serial audio
input interfaces (2+2-ch in)
I2S input/output support ( 44.1K/48K/88.2K/
96K/176.4K/192KHz and 16/24/32 bits
SPDIF input/output supports up to
192KHz/24-bit transfer rate
CM6632A is also capable to support DSD bit stream
output. It’s a lossless SACD playback technique in
PC/Notebook.
BLOCK DIAGRAM
PDSW
GPIO
Parallel
Master I2C
Interface
Slave I2C
EEPROM/Flash
Interface
Interface
GPIO Interface
Bus-Power
3.3V-to-2.5V
Regulator
Local Address Data Bus
Interrupt
Processor
Power-On
Reset
Control
Processor
8051 Processor
Command Bus
USB
Transceiver
Interface
(UTMI)
S/PDIFO0
USB D+/D-
FIFO
Data Bus
S/PDIFO1/2CH
I2S/HDA-Out
PDMA_B (SPO)
8CH
I2S/HDA-Out
Controller
USB
Core
Logic
PDMA_C (2CH)
PDMA_A (8CH)
2CH
I2S/HDA-In
Controller
PLL
Clock-
Generator
2CH
I2S/HDA-In
Controller
RDMA_A (2CH)
RDMA_B (2CH)
RDMA_C (SPI)
12MHz
S/PDIF-In
www.cmedia.com.tw
Copyright© C-Media Electronics Inc.
Rev. 1.1︱ Page 1/15
CM6632A
USB 2.0 High-Definition Audio Processor
Release Notes
Revision
0.1
Date
Description
First release of preliminary technical information
-Add DSD support
2012/08/10
2012/10/18
2012/10/23
2012/12/20
0.2
1.0
Formal release
1.1
Modify software features
www.cmedia.com.tw
Copyright© C-Media Electronics Inc.
Rev. 1.1︱ Page 2/15
CM6632A
USB 2.0 High-Definition Audio Processor
TABLE OF CONTENTS
Release Notes ...................................................................................................................2
1
2
3
4
5
Description and Overview ..............................................................................................4
Features ...................................................................................................................4
Applications...............................................................................................................6
Block Diagram ............................................................................................................7
Pin Assignment............................................................................................................8
5.1
5.2
Pin-Out Diagram................................................................................................8
Pin Description..................................................................................................9
6
7
Electrical Characteristics............................................................................................. 13
6.1
6.2
6.3
6.4
Maximum Ratings............................................................................................. 13
Recommended Operation Conditions..................................................................... 13
Power Consumption.......................................................................................... 13
DC Characteristics ........................................................................................... 13
Package Dimensions ................................................................................................... 14
www.cmedia.com.tw
Copyright© C-Media Electronics Inc.
Rev. 1.1︱ Page 3/15
CM6632A
USB 2.0 High-Definition Audio Processor
1 Description and Overview
The CM6632A is a high-speed USB 2.0 high-speed audio processor that supports the latest USB Audio Device
Class V2.0 and high-definition audio processing applications. The CM6632A provides industry-standard HDA and
I2S I/O interfaces, supports a maximum of 10 channels of output and 4 channels of input, and also integrates a
192KHz/24-bit S/PDIF transmitter and receiver, making it very versatile. Furthermore, the CM6632A has an
embedded 8051 microprocessor that can enhance the flexibility and functionality with external upgradeable
ROM codes. The CM6632A is the most powerful audio core for your high-value USB2.0 audio products.
2 Features
USB Compliance
USB specification 2.0 high-speed-compatible
Latest USB audio device class 2.0/1.0-compatible
USB human interface device (HID) Class 1.1-compliant
Supports USB suspend/resume/reset functions
Asynchronous synchronization transfer to reduce clock jitter
Supports control/interrupt/bulk/isochronous data transfers
Audio Engine
3 Independent playback streams:
Supported sample rate: 44.1K/48K/88.2K/96K/176.4K/192KHz (192K/176.4KHz are available only in
USB Audio Class 2.0/High-speed mode)
Supported bit length: 16/24/32-bit
PDMA#A supports max. 8-ch to I2S output
PDMA#B supports S/PDIF output
PDMA#C supports 2-ch to I2S output
3 Independent capture streams:
Supported sample rate: 44.1K/48K/88.2K/96K/176.4K/192KHz (192K/176.4KHz are available only in
USB Audio Class 2.0/High-speed mode)
Supported bit length: 16/24/32-bit
RDMA#A supports 2-ch from I2S input
RDMA#B supports 2-ch from I2S input
RDMA#C supports S/PDIF input (192KHz receiving supports only Crystal and PLL clock sources)
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Copyright© C-Media Electronics Inc.
Rev. 1.1︱ Page 4/15
CM6632A
USB 2.0 High-Definition Audio Processor
Audio I/O
Five pairs of I2S or left-justified serial audio output interfaces (8+2-ch out)
Two pairs of I2S or left-justified serial audio input interfaces (2+2-ch in)
All the I2S input/out interfaces support master/slave mode
Built-in 192K/176.4K/96K/88.2K/48K/44.1KHz, and 16/24-bit S/PDIF transmitter
Integrated 192K/176.4K/96K/88.2K/48K/44.1KHz, and 16/24-bit S/PDIF receiver
Supports S/PDIF IN-to-OUT loop-back path for signal transforming between TOSLINK and RCA connections
Integrated 8051 Micro-processor
Embedded 8051 micro-processor handles comment/protocol transactions
Connects to an external parallel Flash/EEPROM memory (64kb, 55ns access time is required) for firmware
ROM codes
HID interrupts can be implemented via firmware codes
Provides maximum HW configuration flexibility with a firmware code upgrade
VID/PID/product string can be customized via firmware code programming
Control Interface
Master I2C control interface for external audio devices or EEPROM access
Slave I2C control interface for external MCU communication
9 GPIO pins and 6 GPI pins
General
Embedded USB 2.0 transceiver (up to 480MB bandwidth)
Auto detection for high-speed/full-speed
GPIO pin for USB Audio Class 2.0 and 1.0 application mode configurations
Single 12MHz crystal input is required (embedded PLL function), or optional oscillator inputs for 49.152 or
24.576MHz (for x48KHz) and 45.158 or 22.5792MHz (for x44.1KHz)
Single 3.3V power supply (embedded 3.3V to 2.5V regulator for digital core)
3.3V digital I/O pads with 5V tolerance
Industry-standard LQFP-100 package (16 x 16mm)
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Copyright© C-Media Electronics Inc.
Rev. 1.1︱ Page 5/15
CM6632A
USB 2.0 High-Definition Audio Processor
Optional Value-added Software Features:
Cmedia vendor drivers supports USB Audio Class 2.0 and high-speed mode on Windows® XP, Windows®
Vista, Windows® 7, Windows® 8 and Mac OS X 10.5.7 (or later) with Cmedia vendor drivers
USB audio class 1.0 with full-speed/high-speed modes compatible with the Windows® XP, Windows® Vista,
Windows® 7 and Windows® 8 UAA driver, Mac OS X and Linux embedded USB audio drivers
For Windows, Cmedia drivers provide the following key features:
Playback feedback endpoints to control data transmission accuracy and maximize audio quality
Xear™ Pro
Support ASIO2.2 driver
3 Applications
Multi-channel audio boxes
Professional audio-PC musician applications (recording mixer, I/O interface, DJ console, keyboard,
electric guitar, etc.)
Laptop docking system with USB 2.0 high-definition audio features
High-quality USB 2.0 multi-channel headphone/headset
Portable high-quality USB 2.0 multi-channel sound stations
USB A/V receiver
ExpressCard-compatible USB 2.0 audio adaptor for laptops
Wired or wireless USB hub with audio features
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Copyright© C-Media Electronics Inc.
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CM6632A
USB 2.0 High-Definition Audio Processor
4 Block Diagram
CM6632A Functional Block Diagram
PDSW
GPIO
Parallel
EEPROM/Flash
Interface
Master I2C
Interface
Slave I2C
Interface
GPIO Interface
Bus-Power
3.3V-to-2.5V
Regulator
Local Address Data Bus
Interrupt
Processor
Power-On
Reset
Control
Processor
8051 Processor
Command Bus
USB
Transceiver
Interface
(UTMI)
S/PDIFO0
USB D+/D-
FIFO
Data Bus
S/PDIFO1/2CH
I2S/HDA-Out
PDMA_B (SPO)
8CH
I2S/HDA-Out
Controller
USB
Core
Logic
PDMA_C (2CH)
PDMA_A (8CH)
2CH
I2S/HDA-In
Controller
PLL
Clock-
Generator
2CH
I2S/HDA-In
Controller
RDMA_A (2CH)
RDMA_B (2CH)
RDMA_C (SPI)
12MHz
S/PDIF-In
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Copyright© C-Media Electronics Inc.
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CM6632A
USB 2.0 High-Definition Audio Processor
5 Pin Assignment
5.1 Pin-Out Diagram
XPEE_A10
XPEE_A11
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
XGPIO_9
XGPIO_8
XPEE_A12
XPEE_D7
XPEE_A13
XPEE_D6
XPEE_A14
XPEE_D5
XPEE_A15
XPEE_D4
XPEE_CEN
XPEE_D3
XPEE_WRN
XPEE_RDN
XPEE_D2
XPEE_D1
X2DAC_MCLK
X2DAC_LRCK
X2DAC_SCLK
X2DAC_SDOUT
XMDAC_SDOUT0
X2DAC_SDOUT1
X2DAC_SDOUT2
X2DAC_DSOUT3
XMDAC_SCLK
XMDAC_LRCK
XMDAC_MCLK
XSELF_POWER
XVCC3V
XPEE_D0
XSPDIFI_0
GND
CM6632A
LQFP 100
XPDIFO_0
X2ADC_MCLK
X2ADC_LRCK
X2ADC_SCLK
X2ADC_SDIN
XMADC_LRCK
XMADC_MCLK
XMADC_SCLK
XMADC_SDIN0
VCC3V
XRST
XHDA_SDO
XHDA_RST
XHDA_SYNC
XTEST
XSCI
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Copyright© C-Media Electronics Inc.
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CM6632A
USB 2.0 High-Definition Audio Processor
5.2 Pin Description
Pin #
Symbol
I/O
Description
Clock
1
XSCO
XSCI
XD6
AO
AI
12MHz crystal oscillator output
100
20
12MHz crystal oscillator input
DIO
DIO
49.152Mhz oscillator input(for 48, 96,192KHz)
45.158Mhz oscillator input(for 44.1KHz)
21
XD7
USB 2.0 Bus Interface
5
6
USBDM
USBDP
AIO
AIO
USB 2.0 data negative (USB D- signal)
USB 2.0 data positive (USB D+ signal)
Power/Ground
2
VCCHSRT
GNDHSRT
VCCA_U20
GNDA_U20
VCC3V
VCC
AI
AI
AI
A
USB PHY analog power supply pin (3.3V)
USB PHY analog ground
3
7
USB PHY analog power supply pin (3.3V)
USB PHY analog ground
8
9
DI
DO
D
Digital power supply pin (3.3V)
Digital power filter pin (2.5V), connecting external filter capacitors
Digital ground
10
11
18
29
39
53
61
73
97
GND
GND
D
Digital ground
VCC3V
GND
DI
D
Digital power supply pin (3.3V)
Digital ground
VCC3V
GND
DI
D
Digital power supply pin (3.3V)
Digital ground
VCC3V
VCC3V
DI
DI
Digital power supply pin (3.3V)
Digital power supply pin (3.3V)
2-channel I2S ADC_1 Interface (RDMA_A)
I2S serial data input for channel 0, 1
DI
30
31
32
33
XMADC_SDIN0
XMADC_SCLK
XMADC_MCLK
XMADC_LRCK
Programmable 3.3V input buffer, Schmitt trigger, pull-down
I2S bit clock
DIO
Programmable 3.3V bidirectional buffer, pull-down
I2S master clock
Programmable 3.3V output buffer
DO
I2S left/right clock
Programmable 3.3V bidirectional buffer, pull-down
DIO
2-channel I2S ADC_2 Interface (RDMA_C)
I2S serial data input for channel 0, 1
DI
34
35
X2ADC_SDIN
X2ADC_SCLK
Programmable 3.3V input buffer, Schmitt trigger, pull-down
I2S bit clock
DIO
Programmable 3.3V bidirectional buffer, pull-down
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Copyright© C-Media Electronics Inc.
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CM6632A
USB 2.0 High-Definition Audio Processor
I2S left/right clock
Programmable 3.3V bidirectional buffer, pull-down
I2S master clock
36
37
X2ADC_LRCK
X2ADC_MCLK
DIO
DO
Programmable 3.3V output buffer
S/PDIF I/O
S/PDIF transmitter
Programmable 3.3V output buffer
S/PDIF receiver
38
40
XSPDIFO_0
XSPDIFI_0
DO
DI
3.3v input buffer, Schmitt trigger, pull-down
Parallel EEPROM/Flash Memory Interface
Parallel EEPROM/FLASH data in/out 0
DIO
41
42
43
44
45
46
47
48
82
83
84
65
66
67
68
69
70
71
72
74
75
76
77
78
79
XPEE_D0
XPEE_D1
XPEE_D2
XPEE_D3
XPEE_D4
XPEE_D5
XPEE_D6
XPEE_D7
XPEE_CEN
XPEE_WRN
XPEE_RDN
XPEE_A0
XPEE_A1
XPEE_A2
XPEE_A3
XPEE_A4
XPEE_A5
XPEE_A6
XPEE_A7
XPEE_A8
XPEE_A9
XPEE_A10
XPEE_A11
XPEE_A12
XPEE_A13
Programmable 3.3V bidirectional buffer, pull-down
Parallel EEPROM/FLASH data in/out 1
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH data in/out 2
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH data in/out 3
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH data in/out 4
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH data in/out 5
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH data in/out 6
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH data in/out 7
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH chip enable, active low
Programmable 3.3V output buffer
DO
Parallel EEPROM/FLASH write enable, active low
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH read enable, active low
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 0
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 1
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 2
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 3
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 4
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 5
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 6
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 7
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 8
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 9
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 10
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 11
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 12
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 13
Programmable 3.3V bidirectional buffer, pull-down
DIO
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CM6632A
USB 2.0 High-Definition Audio Processor
Parallel EEPROM/FLASH address 14
Programmable 3.3V bidirectional buffer, pull-down
Parallel EEPROM/FLASH address 15
80
81
XPEE_A14
XPEE_A15
DIO
DIO
Programmable 3.3V bidirectional buffer, pull-down
GPI
General purpose input 0
Programmable 3.3V input buffer, Schmitt trigger, pull-down
General purpose input 1
Programmable 3.3V input buffer, Schmitt trigger, pull-down
General purpose input 2
Programmable 3.3V input buffer, Schmitt trigger, pull-down
General purpose input 3
Programmable 3.3V input buffer, Schmitt trigger, pull-down
General purpose input 4
Programmable 3.3V input buffer, Schmitt trigger, pull-down
General purpose input 5
12
13
14
15
16
17
XGPI_0
XGPI_1
XGPI_2
XGPI_3
XGPI_4
XGPI_5
DIO
DIO
DIO
DIO
DIO
DIO
Programmable 3.3V input buffer, Schmitt trigger, pull-down
GPIO
General purpose input/output 0 (default output).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
General purpose input/output 1 (default output).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
General purpose input/output 2 (default output).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
General purpose input/output 3 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
General purpose input/output 4 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
General purpose input/output 5 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
General purpose input/output 6 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
General purpose input/output 6 (default input).
54
49
50
51
52
58
59
60
62
XGPIO_7
XGPIO_8
XGPIO_9
XGPIO_10
XGPIO_11
XGPIO_12
XGPIO_13
XGPIO_14
XGPIO_15
DIO
DIO
DIO
DIO
DIO
DIO
DIO
DIO
DIO
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
General purpose input/output 6 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
MIDI Interface
MIDI RXD, serial input port
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
MIDI TXD, serial output port
22
23
XD0
XD1
DIO
DIO
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
High-Definition Audio Interface
HDA link bit clock (24MHz)
Programmable 3.3V output buffer
HDA link serial data in
Programmable 3.3V bidirectional buffer, pull-down
HDA link frame synchronization
Programmable 3.3V output buffer
HDA link reset signal, active low
Programmable 3.3V output buffer
HDA link serial data out
24
25
26
27
28
XHDA_BCLK
XHDA_SDI
DO
DI
XHDA_SYNC
XHDA_RST
XHDA_SDO
DO
DO
DO
Programmable 3.3V output buffer
2-channel I2S DAC_2 Interface (PDMA_C)
I2S master clock
DO
85
86
87
X2DAC_MCLK
X2DAC_LRCK
X2DAC_SCLK
Programmable 3.3V output buffer
I2S left/right clock
Programmable 3.3V bidirectional buffer, pull-down
DIO
I2S bit clock
DIO
Programmable 3.3V bidirectional buffer, pull-down
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CM6632A
USB 2.0 High-Definition Audio Processor
I2S serial data output for channel 0, 1
Programmable 3.3V output buffer
88
X2DAC_SDOUT
DO
8-channel I2S or 2-channel DSD DAC_1 Interface (PDMA_A)
I2S serial data output for channel 0, 1/DSD left channel data
Programmable 3.3V output buffer
89
90
XMDAC_SDOUT0 /
DSD left channel
XMDAC_SDOUT1 /
DSD right channel
XMDAC_SDOUT2
DO
I2S serial data output for channel 2, 3/DSD right channel data
Programmable 3.3V output buffer
DO
I2S serial data output for channel 4, 5
Programmable 3.3V output buffer
I2S serial data output for channel 6, 7
Programmable 3.3V output buffer
I2S bit clock/DSD Serial clock
91
92
93
DO
DO
XMDAC_SDOUT3
XMDAC_SCLK /
DSD SCLK
DIO
Programmable 3.3V bidirectional buffer, pull-down
I2S left/right clock
Programmable 3.3V bidirectional buffer, pull-down
I2S master clock
94
95
XMDAC_LRCK
DIO
DO
XMDAC_MCLK
Programmable 3.3V output buffer
2-Wire Master Serial Bus (I2C)
2-wire master serial data
Programmable 3.3V/5V tolerant bidirectional buffer, pull-down
2-wire master serial clock
63
64
XMSDA
XMSCL
DIO
DIO
Programmable 3.3V/5V tolerant bidirectional buffer, pull-down
2-Wire Slave Serial Bus (I2C)
2-wire slave serial data
Programmable 3.3V/5V tolerant bidirectional buffer, pull-down
2-wire slave serial clock
56
57
XSSDA
XSSCL
DIO
DIO
Programmable 3.3V/5V tolerant bidirectional buffer, pull-down
Miscellaneous
Connect external reference resistor (12K1%)
4
RREF
AI
External device power down control signal (default tri-state)
Programmable 3.3V/5V tolerance output buffer
External codec reset (default tri-state)
Programmable 3.3V/5V tolerance output buffer
Self Power used, 1:self power, 0:bus power
19
XPWDN
DO
55
96
XRSTO
DO
DI
XSEL_PWR
Programmable 3.3V input buffer, Schmitt trigger, Pull-down
CM6632A chip reset
98
99
XRST
DI
DI
Test mode select pin:
H: Test Mode
XTEST
L: Normal Operation
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CM6632A
USB 2.0 High-Definition Audio Processor
6 Electrical Characteristics
6.1 Maximum Ratings
Test conditions; VDD = 3.3V, DGND =0V, TA=+25oC
Parameter
Symbol
Min.
-55
0
Typ
-
Max.
150
75
Units
oC
oC
V
Storage temperature
Operating ambient temperature
DC supply voltage
-
-
-
-
-
25
3.0
GND
-
3.3
-
3.6
VDD
-
I/O pin voltage
V
Power dissipation
0.15
W
6.2 Recommended Operation Conditions
Test conditions: VDD = 3.3V, DGND =0V, TA=+25oC
Parameter
Input voltage range
Symbol
Min.
VDD-0.3
0
Typ
VDD
-
Max.
VDD+0.3
VDD
Units
-
-
V
V
Output voltage range
6.3 Power Consumption
Test conditions: DVDD = 3.3V, DGND =0V, TA=+25oC
Parameter
Supply current : power up
Supply current : power down
Symbol
Min.
Typ
Max.
Units
mA
-
-
-
-
79.42
0.163
-
-
uA
6.4 DC Characteristics
Test Conditions: DVDD = 3.3V, DGND =0V, TA=+25oC
Parameter
Input voltage range
Symbol
Vin
Vout
Vih
Vil
Min.
VDD-0.3
0
Typ
Max.
Units
V
VDD
-
VDD+0.3
Output voltage range
VDD
V
High level input voltage
Low level input voltage
High level output voitage
Low level output voltage
Input leakage current
0.7VDD
-
-
-
V
-
0.3VDD
V
Voh
Vol
Iil
2.4
-
-
0.4
10
10
-
V
-
V
-10
-10
-
-
uA
uA
mA
mA
Output leakage current
Output buffer driver current
SPDIF transmit output driver current
Iol
-
-
8
8
-
-
-
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CM6632A
USB 2.0 High-Definition Audio Processor
7 Package Dimensions
LQFP-100 (16 x 16mm)
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Copyright© C-Media Electronics Inc.
Rev. 1.1︱ Page 14/15
CM6632A
USB 2.0 High-Definition Audio Processor
－End of Datasheet－
C-MEDIA ELECTRONICS INC.
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Disclaimer:
Information furnished by C-Media Electronics Inc. is believed to be accurate and reliable. However, no responsibility is assumed by C-Media Electronics Inc. for its use, nor for any
infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise
under any patent or patent rights of C-Media. Trademark and registered trademark are the property of their respective owners.
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