DJCE6313882131 [INTEL]

Consumer Circuit, CMOS, PQFP64;
DJCE6313882131
型号: DJCE6313882131
厂家: INTEL    INTEL
描述:

Consumer Circuit, CMOS, PQFP64

商用集成电路
文件: 总24页 (文件大小:484K)
中文:  中文翻译
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CE6313  
DVB-S Satellite Demodulator  
Data Sheet  
May 2006  
Features  
Conforms to EBU specification for DVB-S and  
Ordering Information  
DirecTV specification for DSS  
DJCE6313 882131  
WJCE6313 882207  
64 Pin LQFP Trays  
64 Pin LQFP* Trays  
On-chip digital filtering supports 1 - 45 MSps  
symbol rates  
On-chip 60 or 90 MHz dual-ADC  
*Pb Free Matte Tin  
0°C to +70°C  
High speed scanning mode for blind symbol  
rate/code rate acquisition  
Description  
Automatic spectral inversion resolution  
High level software interface for minimum  
The CE6313 is  
a
QPSK/BPSK 1 - 45 MSps  
development time  
demodulator and channel decoder for digital satellite  
television transmissions to the European Broadcast  
Union ETS 300 421 specification. It receives analogue  
I and Q signals from the tuner, digitises and digitally  
demodulates this signal, implements the complete  
DVB/DSS FEC (Forward Error Correction) and de-  
scrambling function. The output is in the form of  
MPEG2 or DSS transport stream data packets. The  
CE6313 also provides automatic gain control to the RF  
front-end device.  
Up to ±22.5 MHz LNB frequency tracking  
DiSEqC™ v2.2: receive/transmit for full control of  
LNB, dish and other components  
Compact 64-pin LQFP package (7 x 7 mm)  
A full DVB-S front-end reference design is  
available, ref. CE9541  
Applications  
DVB 1 - 45 MSps compliant satellite receivers  
DSS 20 MSps compliant satellite receivers  
The CE6313 has a serial 2-wire bus interface to the  
control microprocessor. Minimal software is required to  
control the CE6313 because of the built in automatic  
search and decode control functions.  
SMATV (Single Master Antenna TV) trans-  
modulators  
Satellite PC applications  
MPEG/  
DSS  
Packets  
I I/P  
DVB  
DSS  
FEC  
Timing recovery  
Matched filter  
Phase recovery  
Decimation  
Filtering  
Dual ADC  
De-rotator  
Q I/P  
Bus I/O  
Analog  
AGC  
Control  
Acquisition  
Control  
2-Wire Bus  
Interface  
Clock Generation  
Figure 1 - Functional Block Diagram  
1
Intel Corporation  
D55751-001  
Intel and the Intel logo are registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.  
*Other names and brands may be claimed as the property of others.  
Copyright © 2006 Intel Corporation. All rights reserved.  
CE6313  
Data Sheet  
Figure 2 - CE6313 Pin Allocation  
Pin Table  
No.  
Name  
No.  
Name  
No.  
Name  
No.  
Name  
1
2
Reset  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
CVdd  
Gnd  
XTI  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
Gnd  
CVdd  
Addr[1]  
Addr[2]  
Addr[3]  
Addr[4]  
Vdd  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
MDO[1]  
CVdd  
1
DiSEqC[2]  
3
DiSEqC[1]  
DiSEqC[0]  
Vdd  
Gnd  
4
XTO  
Gnd  
CVdd  
Gnd  
Iin  
MDO[2]  
MDO[3]  
Gnd  
5
6
Gnd  
7
CVdd  
Vdd  
8
Gnd  
Gnd  
MDO[4]  
MDO[5]  
Gnd  
9
Sleep  
Iin  
AGC  
10  
11  
12  
13  
14  
15  
16  
CLK1  
Gnd  
Vdd  
Gnd  
Qin  
Test  
1
DATA1  
CVdd  
IRQ  
CVdd  
CVdd  
Gnd  
MDO[6]  
MDO[7]  
MOCLK  
BKERR  
Status  
Gnd  
DATA2  
CLK2  
Qin  
MOSTRT  
MOVAL  
MDO[0]  
Gnd  
CVdd  
OscMode  
1. Can be programmed to be MICLK (MPEG input clock) instead.  
Notes: All supply pins must be connected as they are not all commoned internally.  
2
Intel Corporation  
CE6313  
Data Sheet  
Table of Contents  
1.0 Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
2.0 Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
2.2 Analogue-to-Digital Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
2.3 QPSK Demodulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
2.4 Forward Error Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
2.4.1 Viterbi Error Count Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
2.4.1.1 Viterbi Error Count Coarse Indication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
2.4.2 The Frame Alignment Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
2.4.3 The De-Interleaver Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
2.4.3.1 DVB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
2.4.3.2 DSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
2.4.4 The Reed-Solomon Decoder Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
2.4.5 The Energy Dispersal (de-scrambler) Block, DVB Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
2.4.6 Output Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
2.5 Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
2.5.1 Symbol Rate and Code Rate Search Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
2.6 DiSEqC Transmit and Receive Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
2.6.1 DiSEqC Transmitting Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
2.6.2 DiSEqC Receiving Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
3.0 Microprocessor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
3.1 RADD: 2-wire Register Address (W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
3.2 Primary 2-wire Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
3.3 Secondary 2-wire Bus for Tuner Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
4.0 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
4.1 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
4.2 Absolute Maximum Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
4.3 Primary 2-Wire Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
4.4 Crystal Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
4.5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
4.6 CE6313 Pinout Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
4.7 Alphabetical Listing of Pin-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
4.8 Package details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
5.0 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
6.0 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
3
Intel Corporation  
CE6313  
Data Sheet  
List of Figures  
Figure 1 - Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Figure 2 - CE6313 Pin Allocation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Figure 3 - CE6313 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Figure 4 - Typical Application Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Figure 5 - Viterbi Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Figure 6 - Viterbi Error Count Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Figure 7 - Viterbi Error Count Coarse Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Figure 8 - DVB Conceptual Diagram of the Convolutional De-Interleaver Block . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Figure 9 - DSS Conceptual Diagram of the Convolutional De-Interleaver Block . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Figure 10 - DVB Block Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
Figure 11 - DVB Energy Dispersal Conceptual Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
Figure 12 - DVB Energy Dispersal Conceptual Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Figure 13 - CE6313 Control Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
Figure 14 - Primary 2-Wire Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
Figure 15 - Crystal Oscillator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Figure 16 - Package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
4
Intel Corporation  
CE6313  
Data Sheet  
Overview  
The CE6313 is a QPSK/BPSK 1 - 45 MSps demodulator and channel decoder for digital satellite television  
transmissions compliant to both DVB-S and DSS standards and other systems, such as LMDS, that use the same  
architecture.  
A Command Driven Control (CDC) system is provided making the CE6313 very simple to program. After the tuner  
has been programmed to the required frequency to acquire a DVB transmission, the CE6313 requires a minimum  
of five registers to be written.  
The CE6313 provides a monitor of bit error rate after the QPSK module and also after the Viterbi module. For  
receiver installation, a high speed scan or 'blind search' mode is available. This allows all signals from a given  
satellite to be evaluated for frequency, symbol rate and convolutional coding scheme. The phase of the IQ signals  
can be automatically determined.  
Full DiSEqC is provided for both writing and reading DiSEqC messages. Storage in registers for up to eight data  
bytes sent and eight data bytes received is provided.  
MPEG/  
DSS  
Packets  
I I/P  
DVB  
DSS  
FEC  
Timing recovery  
Matched filter  
Phase recovery  
Decimation  
Filtering  
Dual ADC  
De-rotator  
Q I/P  
Bus I/O  
Analog  
AGC  
Control  
Acquisition  
Control  
2-wire Bus  
Interface  
Clock Generation  
Figure 3 - CE6313 Functional Block Diagram  
5
Intel Corporation  
CE6313  
Data Sheet  
Additional Features  
De-Interleaver  
Compliant with DVB and DSS standards  
Reed-Solomon  
2-wire bus microprocessor interface  
All-digital clock and carrier recovery  
On-chip PLL clock generation using a low cost  
10 to 16 MHz crystal (or external clock)  
(204, 188) for DVB and (146,130) for DSS  
Reed-Solomon bit-error-rate monitor to indicate  
Viterbi performance  
3.3/1.8 V operation  
64 pin LQFP package  
Low external component count  
Commercial temperature range 0 to 70°C  
External MPEG clock option  
De-Scrambler  
EBU specification de-scrambler for DVB mode  
Outputs  
MPEG transport parallel & serial output  
Three output clocking modes for maximum  
flexibility  
Demodulator  
BPSK or QPSK programmable  
Integrated MPEG2 TEI bit processing for DVB only  
Optional fast acquisition mode for low symbol  
rates  
Application Support  
Windows based evaluation software  
ANSI-C compliant software  
Viterbi  
Programmable decoder rates 1/2, 2/3, 3/4, 5/6,  
6/7, 7/8  
A full DVB-S front-end satellite tuner reference  
design kit is available for evaluation, based on the  
schematic below (Figure 4). Intel reference CE9541  
Automatic spectrum resolution of IQ phase  
Constraint length k = 7  
Trace back depth 128  
Extensive SNR and BER monitors  
6
Intel Corporation  
CE6313  
Data Sheet  
1.0 Application Diagram  
Figure 4 - Typical Application Schematic  
7
Intel Corporation  
CE6313  
Data Sheet  
2.0 Functional Overview  
2.1 Introduction  
CE6313 is a single-chip variable rate digital QPSK/BPSK satellite demodulator and channel decoder. The CE6313  
accepts base-band in-phase and quadrature analogue signals and delivers an MPEG or DSS packet data stream.  
Digital filtering in CE6313 removes the need for programmable external anti-alias filtering for all symbol rates from  
1 - 45 MSps. Frequency, timing and carrier phase recovery are all digital and the only feed-back to the analogue  
front-end is for automatic gain control. The digital phase recovery loop enables very fine bandwidth control that is  
needed to overcome performance degradation due to phase and thermal noise.  
All acquisition algorithms are built into the CE6313 controller. The CE6313 can be operated in a Command Driven  
Control (CDC) mode by specifying the symbol rate and Viterbi code rate. There is also a provision for a search for  
unknown symbol rates and Viterbi code rates.  
2.2 Analogue-to-Digital Converter  
The A/D converters sample single-ended or differential analogue inputs and consist of a dual ADC and circuitry to  
provide improved SiNaD (Signal-Noise and Distortion) and channel matching.  
The fixed rate sampling clock is provided on-chip using a programmable PLL needing only a low cost 10 to 16 MHz  
crystal. Different crystal frequencies can be combined with different PLL ratios, depending on the maximum symbol  
rate, allowing a very flexible approach to clock generation. An external clock signal in the range 4 to 16 MHz can  
also be used as the master clock.  
2.3 QPSK Demodulator  
The demodulator in the CE6313 consists of signal amplitude offset compensation, frequency offset compensation,  
decimation filtering, carrier recovery, symbol recovery and matched filtering. The decimation filters give continuous  
operation from 2 Mbps to 90 Mbps allowing one receiver to cover the needs of the consumer market as well as the  
single carrier per channel (SCPC) market with the same components without compromising performance, that is,  
the channel reception is within 0.5 dB from theory. For a given symbol rate, control algorithms on the chip detect the  
number of decimation stages needed and switch them in automatically.  
The frequency offset compensation circuitry is capable of tracking out up to ±22.5 MHz frequency offset. This  
allows the system to cope with relatively large frequency uncertainties introduced by the Low Noise Block (LNB).  
Full control of the LNB is provided by the DiSEqC outputs from the CE6313. Horizontal/vertical polarization and an  
instruction modulated 22 kHz signal are available under register control. All DiSEqC functions are implemented on  
the CE6313. An internal state machine that handles all the demodulator functions controls the signal tracking and  
acquisition. Various preset modes are available as well as blind acquisition where the receiver has no prior  
knowledge of the received signal. Fast acquisition algorithms have been provided for low symbol rate applications.  
Full interactive control of the acquisition function is possible for debug purposes. In the event of a signal fade or a  
cycle slip, the QPSK demodulator allows sufficient time for the FEC to reacquire lock, for example, via a phase  
rotation in the Viterbi decoder. This is to minimize the loss of signal due to the signal fade. Only if the FEC fails to  
re-acquire lock for a long period (which is programmable) the QPSK will try to re-acquire the signal.  
The matched filter is a root-raised-cosine filter with either 0.20 or 0.35 roll-off, compliant with DSS and DVB  
standards. Although not a part of the DVB standard, CE6313 allows a roll-off of 0.20 to be used with other DVB  
parameters. An AGC signal is provided to control the signal levels in the tuner section of the receiver and ensure  
the signal level fed to the CE6313 is set at an optimal value under all reception conditions.  
The CE6313 provides comprehensive information on the input signal and the state of the various parts of the  
device. This information includes signal to noise ratio (SNR), signal level, AGC lock, timing and carrier lock signals.  
A maskable interrupt output is available to inform the host controller when events occur.  
8
Intel Corporation  
CE6313  
Data Sheet  
2.4 Forward Error Correction  
The CE6313 contains FEC blocks to enable error correction for DVB-S and DSS transmissions. The Viterbi  
decoder block can decode the convolutional code with rates 1/2, 2/3, 3/4, 5/6, 6/7 or 7/8. The block features  
automatic synchronization, automatic spectral inversion resolution and automatic code rate detection. The trace  
back depth of 128 provides better performance at high code rates and the built-in synchronization algorithm allows  
the Viterbi decoder to lock onto signals with very poor signal-to-noise ratios. A Viterbi bit error rate monitor provides  
an indication of the error rate at the QPSK output.  
The 24-bit error count register in the Viterbi decoder allows the bit error rate at the output of the QPSK demodulator  
to be monitored. The 24-bit bit error count register in the Reed-Solomon decoder allows the Viterbi output bit error  
rate to be monitored. The 16-bit uncorrectable packet counter yields information about the output packet error rate.  
These three monitors and the QPSK SNR register allow the performance of the device and its individual  
components, such as the QPSK demodulator and the Viterbi decoder, to be monitored extensively by the external  
microprocessor. The frame/byte align block features a sophisticated synchronization algorithm to ensure reliable  
recovery of DVB and DSS framed data streams under worst case signal conditions. The de-interleaver uses on-  
chip RAM and is compatible with the DVB and DSS algorithms. The Reed-Solomon decoder is a truncated version  
of the (255, 239) code. The code block size is 204 for DVB and 146 for DSS. The decoder provides a count of the  
number of uncorrectable blocks as well as the number of bit errors corrected. The latter gives an indication of the bit  
error rate at the output of the Viterbi decoder. In DVB mode, spectrum de-scrambling is performed compatible with  
the DVB specification. The final output is a parallel or serial transport data stream, packet sync, data clock and a  
block error signal. The data clock may be inverted under software control.  
2.4.1 Viterbi Error Count Measurement  
A method of estimating the bit error rate at the output of the QPSK block has been provided in the Viterbi decoder.  
The incoming data bit stream is delayed and compared with the re-encoded and punctured version of the decoded  
bit stream to obtain a count of errors, see Figure 5. The measurement system has a programmable register to  
determine the number of data bits (the error count period) over which the count is being recorded. A read register  
indicates the error count result and an interrupt can be generated to inform the host microprocessor that a new  
count is available.  
The VIT_ERRPER_register is programmed with the required number of data bits (the error count period)  
(VIT_ERRPER[7:0]). The count of errors found during this period is loaded by the CE6313 into the  
VIT_ERRCNT_H-M-L trio of registers when the bit count VIT_ERRPER[7:0] is reached. At the same time an  
interrupt is generated on the IRQ line. Setting the IE_FEC[2] bit in the IE_FEC register enables the interrupt.  
Reading the register does not clear VIT_ERRCNT [23:0], it is only loaded with the error count.  
Data Bit Stream  
Viterbi  
Decoder  
Viterbi  
Encoder  
Error Count  
Comp  
Delay  
Figure 5 - Viterbi Block Diagram  
9
Intel Corporation  
CE6313  
Data Sheet  
Error  
Count  
VIT_ERRCNT[23:0]  
0
0
VIT_ERRPER  
Data Bits  
IRQ  
Figure 6 - Viterbi Error Count Measurement  
Figure 6 shows the bit errors rising until the maximum programmed value of VIT_ERRPER is reached, when an  
interrupt is generated on the IRQ line to advise the host microprocessor that a new value of bit error count has been  
loaded into the VIT_ERRCNT [23:0] register. The IRQ line will go high when the IE_FEC register is read by the host  
microprocessor. The error count may be expressed as a ratio:  
VIT_ERRCNT[23:0]  
VIT_ERRPER[7:0] * 262144  
2.4.1.1 Viterbi Error Count Coarse Indication  
To assist in the process of aligning the receiver dish aerial, a coarse indication of the number of bit errors being  
received can be provided by monitoring the STATUS line with the following set up conditions.  
The frequency of the output waveform will be a function of the bit error count (triggering the maximum value  
programmed into the VIT_MAXERR[7:0] register and the dish alignment on the satellite. This VIT_MAXERR mode  
is enabled by setting the FEC_STAT_EN register bit-0. Figure 7 shows the bit errors rising to the maximum value  
programmed and triggering a change of state on the STATUS line.  
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CE6313  
Data Sheet  
VIT_MAXERR[3:0]  
VITERBI  
Coarse  
Bit  
Error  
Count  
0
0
Data Bits  
Status  
Figure 7 - Viterbi Error Count Coarse Indication  
2.4.2 The Frame Alignment Block  
The frame alignment algorithm detects a sequence of correctly spaced synchronizing bytes in the Viterbi decoded  
bit-stream and arranges the input into blocks of data bytes. Each block consists of 204 bytes for DVB and 147 bytes  
for DSS. In the DSS mode, the synchronizing byte is removed from the data stream, so only 146 bytes of a block  
are passed to the next stage. The frame alignment block also removes the 180° phase ambiguity not removed by  
the Viterbi decoder.  
2.4.3 The De-Interleaver Block  
2.4.3.1 DVB  
Before transmission, the data bytes are interleaved with each other in a cyclic pattern of twelve. This ensures the  
bytes are spaced out to avoid the possibility of a noise spike corrupting a group of consecutive message bytes.  
Figure 8 below shows conceptually how the convolutional de-interleaving system works. The synchronization byte  
is always loaded into the First-In-First-Out (FIFO) memory in branch 0. The switch is operated at regular byte  
intervals to insert successively received bytes into successive branches. After 12 bytes have been received,  
byte 13 is written next to the synchronization byte in branch 0, etc. In the CE6313, this de-interleaving function is  
realized using on-chip Random Access Memory (RAM).  
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Intel Corporation  
CE6313  
Data Sheet  
Sync word route  
0
1
0
1
17x11 bytes  
17x10 bytes  
One  
byte per  
position  
2
3
2
3
17x9 bytes  
17x8 bytes  
4
5
6
4
5
6
17x7 bytes  
17x6 bytes  
17x5 bytes  
17x4 bytes  
7
8
7
8
17x3 bytes  
17x2 bytes  
17x1  
9
10  
11  
9
10  
11  
Figure 8 - DVB Conceptual Diagram of the Convolutional De-Interleaver Block  
2.4.3.2 DSS  
Before transmission, the data bytes are interleaved with each other in a cyclic pattern of thirteen. This ensures the  
bytes are spaced out to avoid the possibility of a noise spike corrupting a group of consecutive message bytes.  
Figure 9 below shows conceptually how the convolutional de-interleaving system works. On the CE6313, this  
function is realized in the same Random Access Memory (RAM) as used for DVB, but utilizing a different  
addressing algorithm.  
Output  
145  
0
1
2
Input  
12D  
12D  
12D  
Figure 9 - DSS Conceptual Diagram of the Convolutional De-Interleaver Block  
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CE6313  
Data Sheet  
2.4.4 The Reed-Solomon Decoder Block  
DVB and DSS data are encoded using shortened versions of the Reed-Solomon code of block length 255,  
containing 239 message bytes and 16 check bytes, that is (255,239) with T = 8. Both encoders use the same  
generator polynomial. The code block size for DVB is 204 and that for DSS is 146. Hence DVB code is (204, 188)  
and DSS code is (146, 130), with both having T = 8. The block structure of the DVB and DSS Reed-Solomon codes  
are as shown in Figure 10 and Figure 11 below.  
The Reed-Solomon decoder can correct up to eight byte errors per packet. If there are more than eight bytes  
containing errors, the packet is flagged as uncorrectable using the BKERR pin 63. In the case of DVB the Transport  
Error Indicator (TEI) bit of the MPEG packet is set to 1, if setting of TEI is enabled.  
187 bytes  
16 check bytes  
Sync byte  
Sync byte  
Reed-Solomon encoded block  
187 bytes  
MPEG transport packet  
Figure 10 - DVB Block Structure  
130 bytes  
16 check bytes  
Reed-Solomon encoded block  
130 bytes  
DSS transport packet  
Figure 11 - DVB Energy Dispersal Conceptual Diagram  
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CE6313  
Data Sheet  
2.4.5 The Energy Dispersal (de-scrambler) Block, DVB Only  
Before Reed-Solomon encoding in the DVB transmission system, the MPEG2 data stream is randomised using the  
configuration shown in Figure 12 below. This is a Pseudo Random Binary Sequence (PRBS) generator, with the  
polynomial:  
14  
15  
1 + X + X  
The PRBS registers are loaded with the initialisation sequence as shown, at the start of the first transport packet in  
a group of eight packets. This point is indicated by the inverted sync byte 0xB8 (the normal DVB sync byte is 0x47).  
The data starting with the first byte after the sync byte are randomised by exclusive-ORing data bits with the PRBS  
(the sync bytes themselves are not randomised). In the decoder, the process of de-randomising or de-scrambling  
the data is exactly the same as described above. The de-scrambler also inverts the sync byte 0xB8 so that all  
MPEG output packets have the same sync byte 0x47.  
Initialisation sequence  
1
0
0
3
1
4
0
5
1
0
1
0
0
0
0
0
0
0
1
2
6
7
8
9
10  
11  
12  
13  
14  
15  
XOR  
Figure 12 - DVB Energy Dispersal Conceptual Diagram  
2.4.6 Output Stage  
The transport stream can be output in a byte-parallel or bit-serial mode. The output interface consists of an 8-bit  
output, output clock, a packet validation level, a packet start pulse and a block error indicator.  
The output clock rate depends on the symbol rate, QPSK/BPSK choice, convolutional (Viterbi) coding rate,  
DVB/DSS choice and byte-parallel or bit-serial output mode. This rate is computed by CE6313 to be very close to  
the minimum required to output packet data without packet overlap. Furthermore, the packets at the output of  
CE6313 are as evenly spaced as possible to minimize packet position movement in the transport layer. The  
maximum movement in the packet synchronization byte position is limited to ±1 output clock period.  
2.5 Control  
Automatic symbol rate search, code rate search, signal acquisition and signal tracking algorithms are built into the  
CE6313 using a sophisticated on-chip controller. The software interaction with the device is via a simple Command  
Driven Control (CDC) interface. This CDC maps high level inputs such as symbol rates in MSps and frequencies in  
MHz, to low level on-chip register settings. The on-chip control state machine and the CDC significantly reduces the  
software overhead as well as the channel search times. There is also an option for the host processor to by-pass  
both the CDC as well as the on-chip controller and take direct control of the QPSK demodulator. Once the CE6313  
has locked to the signal, any frequency offset can be read from the LNB_FREQ error registers 7 and 8. The  
frequency synthesiser under the software control can be re-tuned in frequency to optimise the received signal  
within the baseband filter bandwidth. Note that CE6313 compensates for any frequency offsets before QPSK  
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CE6313  
Data Sheet  
demodulation. Hence a frequency offset will not necessarily lead to a performance loss. Performance loss will occur  
only if a significant part of the signal is cut off by the base-band filter, due to this frequency offset. This will happen  
only if the symbol rate is close to the maximum supported by that filter. In such an event it is recommended that  
front-end be re-tuned to neutralise this error before the filter. It is then necessary for the CE6313 to re-acquire the  
signal.  
The CE6313 can generate control signals to enable full control of the dish and LNB. The chip implements the  
signals needed for the full DiSEqC specification. This includes high/low band selection, polarization and dish  
position. In this mode, the symbol rate in MSps and Viterbi code rate are the only values needed to start the  
CE6313 searching for the signal. The CDC module maps the high level parameters into the various low level  
register settings needed to acquire and track the signal. The low level registers may be read and directly modified  
to suit very specific requirements. However, this is not recommended.  
High level input/output  
(MSps, MHz)  
CE6313  
format  
registers  
Acquisition/  
Track  
State Machine  
Command  
Driven  
Control  
QPSK  
Low level register read/write  
Figure 13 - CE6313 Control Structure  
2.5.1 Symbol Rate and Code Rate Search Mode  
Where the symbol rate and/or the Viterbi code rate are unknown, the CE6313 can be programmed to search for  
QPSK/BPSK signals. The user should define the range(s) over which the search is required. The CE6313 will then  
locate and track any signal detected. Failure to find a QPSK signal in the specified frequency and specified symbol  
rate ranges will be indicated by interrupts. CE6313 will carry on searching these ranges after issuing these  
interrupts. When the CE6313 has locked onto a signal, the symbol rate in MSps may be read from the MONITOR  
registers. The Viterbi code rate may be read from the FEC_STATUS register. This search facility is primarily for use  
during the initial installation of a receiver.  
2.6 DiSEqC Transmit and Receive Messages  
The CE6313 has the capability to send and receive DiSEqC messages. Eight registers are provided to store a  
message for transmission and a further eight registers are provided to store a received message. The received  
bytes have a parity bit and a parity error bit in addition to the eight data bits. These additional bits are read out in  
sequence following the data bits, so two byte reads are required for each data byte.  
2.6.1 DiSEqC Transmitting Messages  
The sequence of events to send a message are as follows:  
1. Load the required message bytes into the DiSEqC instruction register. Sequential writes to the same register are  
achieved by setting the Inhibit Auto Incrementing (IAI) bit 7 in RADD, the register address byte.  
2. Load the number of bytes (less one) in the DiSEqC instruction in the register DiS_Mode[5:3].  
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CE6313  
Data Sheet  
3. Set DiS_Mode[2:0] = 4 to command the CE6313 to encode the data and transmit the message.  
4. Reset DiS_Mode[2:0] to either 0 or 1 depending on previous setting of 22 kHz off or on. The data loaded into the  
DiSEqC_INSTR register is retained, so that if the same message is to be repeated, stage 1 above can be omit-  
ted.  
2.6.2 DiSEqC Receiving Messages  
The CE6313 will automatically listen for DiSEqC messages 5 ms after a message has been transmitted. If a return  
message is expected, the DiS_Mode[2:0] must be set to zero in order to leave the LNB control signal free for  
another DiSEqC transmitter to respond. The sequence of events to receive a message are as follows:  
1. Ensure that DiSEqC2/GPP2 pin 2 is an input by setting GPP_CTRL register address-20 bit-5 to zero.  
2. Enable interrupts if the IRQ pin 43 is used to interrupt the host processor in DiSEqC2_CTRL1 register 121.  
3. Monitor DiS_INT register.  
4. If bit-3 = 1 and bit-1 = 0, there has been no message received.  
5. If a message has been received, bit-0 will be set. If bit-1 is also set the message is complete. DiS_INT register  
bits-7-4 indicate how many bytes have been received.  
6. Read the received message from DiS_FIFO register 120 by setting the Inhibit Auto Incrementing (IAI) bit-7 in  
RADD, the register address byte and sequentially reading DiS_FIFO for the indicated number of bytes. Each  
data byte read requires two 2-wire bus reads. The second or the pair of bytes contains the parity bit and a parity  
bit error indicator.  
The user may choose to wait for the end of message indication, before reading the message, if it is known that the  
message is not greater than eight bytes. However, if the length of message is not known, the message should be  
read out of the FIFO by the host as it is being received. Care must be taken to avoid a FIFO buffer overflow.  
DiS_INT register bits-7-4 will indicate how many bytes remain in the FIFO.  
3.0 Microprocessor Control  
3.1 RADD: 2-wire Register Address (W)  
RADD is the internal 2-wire bus register address. It is the first byte written after the CE6313 2-wire bus address  
when in write mode.  
To write to the chip, the bus master should send a START condition and the chip address with the write bit set,  
followed by the register address where subsequent data bytes are to be written. Finally, when the 'message' has  
been sent, a STOP condition is sent to free the bus.  
To read from the chip from register address zero, the bus master should send a START condition and the chip  
address with the read bit set, followed by the requisite number of clocks to read the bytes out. Finally a STOP  
condition is sent to free the bus. RADD is not sent in this case.  
To read from the chip from an address other than zero, the bus master should send the chip address with the write  
bit set, followed by the register address from where subsequent data bytes are to be read. Then the bus master  
should send a repeat START condition and the chip address with the read bit set, followed by the requisite number  
of CLK1 clocks to read the required bytes out. Finally a STOP condition is sent to free the bus. A STOP condition  
resets the RADD value to 00.  
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CE6313  
Data Sheet  
RADD (virtual register, address none)  
Def  
hex  
NAME ADR bit-7 bit-6 bit-5 bit-4  
bit-3  
AD3  
bit-2  
bit-1  
bit-0  
AD2  
AD1  
AD0  
RADD  
N/A  
IAI  
IAI  
AD6  
AD5 AD4  
W
-
bit-7:  
High = Inhibit auto increment  
Low = Increment addresses  
bits 6-0:  
AD[6:0]  
register address, numbers in the range 0 to 127 are allowed  
When the register address is incremented to 127 it stops and the bus will continue to write to or read from register  
127 until a STOP condition is sent.  
3.2 Primary 2-wire Bus Interface  
The primary 2-wire bus serial interface uses pins:  
DATA1 (pin 11) serial data, the most significant bit is sent first.  
CLK1 (pin 10) serial clock.  
The 2-wire bus address is determined by applying Vdd or Gnd to the ADDR[4:1] pins while the three MSBs of the  
address are internally set to ‘0’.  
For compatibility with earlier devices, the 2-wire bus address will normally be 0001 110 R/W and the pins connected  
as follows:  
Addr[4] Addr[3] Addr[2] Addr[1]  
Vdd  
Vdd  
Vdd  
Gnd  
When the CE6313 is powered up, the Reset pin 1 should be maintained low for typically 100 ms after Vdd and  
CVdd have reached normal operation levels, and the Sleep pin 9 has gone low. This is to ensure that the crystal  
oscillator and internal PLL have become fully established and that the internal reset signal is fully clocked into all  
parts of the circuit. As the reset pin is pulled high, the logic levels on Addr[4:1] are latched to become the 2-wire bus  
address AD[6:0].  
The circuit works as a slave transmitter with the eighth bit set high or as a slave receiver with the eighth bit set low.  
In receive mode, the first data byte is written to the RADD virtual register, which forms the register sub-address.  
Bit 7 of the RADD register, IAI is an Inhibit Auto Increment function. When the IAI bit is set high, the automatic  
incrementing of register addresses is inhibited. IAI set low is the normal situation so that data bytes sent on the  
2-wire bus after the RADD register data are loaded into successive registers. This automatic incrementing feature  
avoids the need to individually address each register.  
Following a valid chip address, the 2-wire bus STOP command resets the RADD register to 00. If the chip address  
is not recognised, the CE6313 will ignore all activity until a valid chip address is received. The 2-wire bus START  
command does NOT reset the RADD register to 00. This allows a combined 2-wire bus message to point to a  
particular read register with a write command, followed immediately with a read data command. If required, this  
could next be followed with a write command to continue from the latest address. Finally a STOP command should  
be sent to free the bus.  
When the 2-wire bus is addressed (after a recognised STOP command) with the read bit set, the first byte read out  
will be the content of register 00.  
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CE6313  
Data Sheet  
3.3 Secondary 2-wire Bus for Tuner Control  
The CE6313 has a General Purpose Port that can be configured to provide a secondary 2-wire bus with full bi-  
directional operation. When pass-through is enabled, a transparent connection is made to the tuner. This innovative  
design simplifies the software required to program the tuner.  
Pass-through mode is selected by setting register (20) GPP_CTRL[bit-6] = 1.  
The allocation of the pins is: DATA2 = pin14, CLK2 = pin 15.  
4.0 Electrical Characteristics  
4.1 Recommended Operating Conditions  
Parameter  
Core power supply voltage  
Symbol  
Min.  
Typ.  
Max.  
Units  
CVdd  
Vdd  
1.71  
3.13  
3.99  
9.99  
1.8  
3.3  
1.89  
3.47  
22.66  
16.01  
400  
V
V
Periphery power supply voltage  
1
2
Input clock frequency (note & )  
Fxt1  
Fxt2  
Fclk1  
MHz  
MHz  
kHz  
°C  
Crystal oscillator frequency  
3
CLK1 clock frequency (with 10 MHz or above)  
Ambient operating temperature  
0
70  
1. When not using a crystal, XTI may be driven from an external source over the frequency range shown.  
2. The upper limit is set by DiSEqC requirements. If DiSEqC is not required, then external frequencies up to 27.00 MHz can be  
used.  
3. The maximum serial clock speed on the primary 2-wire bus is related to the input clock frequency and is limited to 100 kHz with  
a 4.0 MHz clock.  
4.2 Absolute Maximum Ratings  
Parameter  
Symbol  
Min.  
Max.  
4.5  
Unit  
Vdd  
CVdd  
Vi  
-0.3  
-0.3  
-0.3  
-0.3  
-0.3  
-0.3  
-0.3  
-0.3  
V
Power supply  
2.3  
Voltage on input pins (5 V rated)  
Voltage on input pins (3.3 V rated)  
Voltage on input pins (1.8 V rated, e.g., XTI)  
Voltage on output pins (5 V rated)  
Voltage on output pins (3.3 V rated)  
Voltage on output pins (1.8 V rated, e.g., XTO)  
Storage temperature  
6.5  
V
V
Vi  
Vdd + 0.5  
CVdd + 0.5  
5.5  
Vi  
V
Vo  
V
Vo  
Vdd + 0.5  
CVdd + 0.5  
150  
V
Vo  
V
Tstg  
Top  
Tj  
-55  
°C  
°C  
°C  
kV  
Operating ambient temperature  
Junction temperature  
0
70  
125  
ESD protection (human body model)  
2
Note 1: Stresses exceeding these listed under 'Absolute Ratings' may induce failure. Exposure to absolute maximum ratings for  
extended periods may reduce reliability. Functionality at or above these conditions is not implied.  
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CE6313  
Data Sheet  
4.3 Primary 2-Wire Bus Timing  
Figure 14 - Primary 2-Wire Bus Timing  
Where: S = Start  
Sr = Restart, i.e., Start without stopping first.  
P = Stop  
Table 1 - Primary 2-wire bus timing  
Value  
Parameter: Primary 2-wire bus only  
CLK1 clock frequency (for XTI 10MHz)  
Symbol  
Unit  
Min.  
Max.  
fCLK  
tBUF  
0
400  
kHz  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
Bus free time between a STOP and START condition  
Hold time (repeated) START condition  
LOW period of CLK1 clock  
1300  
600  
1300  
600  
600  
0
tHD;STA  
tLOW  
HIGH period of CLK1 clock  
tHIGH  
tSU;STA  
tHD;DAT  
tSU;DAT  
tR  
Set-up time for a repeated START condition  
Data hold time (when input)  
Data set-up time  
100  
1
2
Rise time of both CLK1 and DATA1 signals  
Fall time of both CLK1 and DATA1 signals, (100pF to ground)  
Set-up time for a STOP condition  
20+0.1Cb  
20+0.1Cb  
600  
300  
1
tF  
300  
tSU;STO  
1. Cb = the total capacitance on either clock or data line in pF.  
2. The rise time depends on the external bus pull up resistor and bus capacitance.  
4.4 Crystal Specification  
Parallel resonant fundamental frequency (preferred) 9.99 to 16.01 MHz.  
Tolerance over operating temperature range ±25 ppm.  
Tolerance overall ±50 ppm.  
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CE6313  
Data Sheet  
Nominal load capacitance 30 pF.  
Equivalent series resistance <75 Ω  
Figure 15 - Crystal Oscillator Circuit  
Note: The crystal frequency should be chosen to ensure that the system clock would marginally exceed the  
maximum symbol rate required, e.g. 10.111 MHz with a multiplier of x9 will give a 91 MHz system clock to  
guarantee 45 MSps operation.  
4.5 Electrical Characteristics  
Conditions (unless specified otherwise):Tamb = 25°C  
CVdd = 1.8 V Vdd = 3.3 V  
DC Electrical Characteristics  
Parameter  
Conditions/Pin  
Symbol  
Min.  
Typ.  
Max.  
Unit  
Core voltage  
CVdd  
Vdd  
1.71  
3.13  
1.8  
3.3  
165  
7
1.89  
3.47  
V
V
Peripheral voltage  
Core current  
45 MSps CR 7/8 91 MHz system clock  
CIdd  
Idd  
mA  
mA  
mW  
Peripheral current  
Total power  
(91 MHz system  
clock)  
Ptot1  
320  
1
Total power (stand-  
by)  
ADCs powered down. MPEG outputs  
tri-stated  
Ptot2  
2.2  
mW  
1
Total power (sleep)  
Output low level  
Pin 9 = logic ‘1’ ADCs powered down  
Ptot3  
0.35  
mW  
V
2, 6 or 12 mA per output (see section  
4.6, CE6313 Pinout Description)  
Vol  
0.4  
±1  
Output high level  
Output leakage  
2, 6 or 12 mA per output  
Voh  
2.4  
V
Tri-state when off or open-drain when  
high  
µA  
All outputs except XTO, CLK1 & open-  
2.7  
3.3  
pF  
pF  
Output capacitance drain types. Excludes packaging  
contribution (~0.35 pF)  
Open-drain outputs.  
Excludes packaging  
contribution (~0.35 pF)  
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CE6313  
Data Sheet  
DC Electrical Characteristics (continued)  
Parameter  
Conditions/Pin  
Symbol  
Min.  
Typ.  
Max.  
0.8  
Unit  
Input low level  
Input high level  
Input leakage  
Vil  
V
V
Vih  
2.0  
Vin = 0 or Vdd  
±1  
µA  
pF  
Input capacitance  
Excludes packaging contribution  
(~0.35 pF)  
1.5  
1. For minimum power, MPEG outputs should be tristated and ADCs powered down.  
AC Electrical Characteristics  
Parameter  
Conditions/Pin  
Min.  
Typ.  
Max.  
Unit  
ADC Full-scale input single range  
(single-ended or differential)  
Differential source is  
recommended  
0.5  
1.0  
Vpp  
ADC analog input resistance  
ADC analog input capacitance  
ADC input common mode voltage level  
System clock frequency  
Per input pin  
Per input pin  
10  
kΩ  
pF  
2
0.7  
1.7  
V
30.00  
3.99  
9.99  
100  
MHz  
MHz  
MHz  
kHz  
1
2
Input clock frequency (note and )  
Crystal oscillator frequency  
22.66  
16.01  
400  
See Section 4.4 for details  
On either pin #2 or pin #43  
3
CLK1 clock frequency  
(with 10 MHz xtal or above)  
MPEG clock input frequency  
4
5
note  
65  
MHz  
1. When not using a crystal, XTI may be driven from an external source over the frequency range shown.  
2. The upper limit is set by DiSEqC requirements. If DiSEqC is not required, then external frequencies up to 27.00 MHz can be used.  
3. The maximum serial clock speed on the primary 2-wire bus is related to the input clock frequency and is limited to 100 kHz with a  
4.0 MHz clock.  
4. Must be calculated from the data input rate.  
5. Also subject to system clock limitations.  
4.6 CE6313 Pinout Description  
Pin Description Table  
Pin  
Name  
Description  
Active low reset input  
I/O  
Note  
V
mA  
1
1
2
Reset  
I
CMOS  
5
5
DiSEqC[2] DiSEqC input for level 2 control. Also usable as  
GPP2 (general purpose port pin) for other purposes,  
and as MICLK - external clock input for MPEG data.  
I/O  
Open  
6
1
drain  
3
4
DiSEqC[1] Horizontal/vertical LNB control (acts as input only in  
production test modes)  
I/O  
I/O  
CMOS  
CMOS  
3.3  
3.3  
2
2
DiSEqC[0] 22 kHz output to LNB (acts as input only in  
production test modes)  
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CE6313  
Data Sheet  
Pin Description Table (continued)  
Pin  
Name  
Description  
I/O  
Note  
V
mA  
9
Sleep  
Stops oscillator and sets minimum power levels to  
entire device (except ADCs - register controlled  
power-down)  
I
CMOS  
3.3  
10  
11  
CLK1  
Primary 2-wire serial bus clock  
Primary 2-wire serial bus data  
I
CMOS1  
Open  
5
5
DATA1  
I/O  
6
6
1
drain  
14  
15  
16  
DATA2  
CLK2  
Secondary 2-wire bus data to tuner front end. Also  
usable as GPP1 (general purpose port pin) for other  
purposes.  
I/O  
I/O  
I
Open  
5
1
drain  
Secondary 2-wire bus clock to tuner front end. Also  
usable as GPP0 (general purpose port pin) for other  
purposes.  
Open  
5
6
1
drain  
OscMode Controls oscillator mode to suit crystal or external  
signal  
CMOS  
3.3  
19  
20  
XTI  
Crystal input or external reference clock input  
I
CMOS  
CMOS  
1.8  
1.8  
XTO  
Crystal output, includes internal feedback resistor to  
XTI  
I/O  
24  
25  
29  
30  
Iin  
Iin  
I channel input  
I
I
I
I
I
analog  
analog  
analog  
analog  
CMOS  
I channel negative input  
Q channel negative input  
Q channel input  
Qin  
Qin  
35,36,37 ADDR[1:4] Primary 2-wire bus address defining pins  
38  
3.3  
5
41  
AGC  
AGC sigma-delta output (acts as input only in  
production test modes)  
I/O  
Open  
6
6
1
drain  
42  
43  
Test  
IRQ  
For normal operation, this pin must be held at 0 V.  
I
CMOS  
Open  
3.3  
5
Active low interrupt output. Reading all active  
interrupt registers resets this pin. Can also be defined  
as MICLK - external clock input for MPEG data  
I/O  
1
drain  
46  
47  
MOSTRT  
MOVAL  
MPEG output start signal. High during the first byte of  
a packet.  
O
O
O
CMOS  
3.3  
3.3  
3.3  
2
2
2
Tri-state  
MPEG data output valid. High during the MOCLK  
cycles when valid data bytes are being output.  
CMOS  
Tri-state  
48,49,52  
,53,56,  
MDO[0:7] MPEG transport packet data output bus. Can be tri-  
stated under control of a register bit.  
CMOS  
Tri-state  
57,60,61  
62  
MOCLK  
MPEG clock output at the data byte rate.  
O
CMOS  
3.3  
12  
Tri-state  
22  
Intel Corporation  
CE6313  
Data Sheet  
Pin Description Table (continued)  
Pin  
Name  
Description  
I/O  
Note  
V
mA  
63  
BKERR  
Active low uncorrectable block indicator or no-signal  
indicator. Mode selected by ERR_IND bit (#7) of the  
MON_CTRL register. Can also be inverted.  
O
CMOS  
3.3  
2
Tri-state  
64  
STATUS  
Status output. Register defined function including  
audio frequency proportional to BER (acts as input  
only in production test modes)  
I/O  
CMOS  
3.3  
2
5, 39, 55  
27  
Vdd  
Vdd  
Peripheral supply pins. All pins must be connected.  
Peripheral supply pin used for the ADC.  
3.3  
3.3  
1.8  
7, 12,  
44, 50,  
59  
CVdd  
Core supply pins. All pins must be connected.  
17, 22,  
32, 34  
CVdd  
Gnd  
PLL/ADC supply pins. All pins must be connected.  
Ground supply pins. All pins must be connected.  
1.8  
0
6, 8, 13,  
40, 45  
51, 54,  
58  
18, 21,  
23 26,  
28, 31,  
33  
Gnd  
PLL/ADC ground supply pins. All pins must be  
0
connected.  
Note 1: 5 V tolerant pins with thresholds related to 3.3 V.  
4.7 Alphabetical Listing of Pin-Out  
Pin-out - alphabetical list  
Name  
No.  
35  
36  
37  
38  
41  
63  
10  
15  
7
Name  
CVdd  
No.  
59  
11  
14  
4
3
2
6
8
13  
18  
21  
23  
26  
Name  
Gnd  
Gnd  
Gnd  
Gnd  
Gnd  
Iin  
Iin  
IRQ  
MDO[0]  
MDO[1]  
MDO[2]  
MDO[3]  
MDO[4]  
No.  
40  
45  
51  
54  
58  
24  
25  
43  
48  
49  
52  
53  
56  
Name  
MOCLK  
MOSTRT  
MOVAL  
OscMode  
Qin  
No.  
62  
46  
47  
16  
29  
30  
1
Addr[1]  
Addr[2]  
Addr[3]  
Addr[4]  
AGC  
BKERR  
CLK1  
CLK2  
CVdd  
CVdd  
CVdd  
CVdd  
DATA1  
DATA2  
DiSEqC[0]  
DiSEqC[1]  
DiSEqC[2]  
Gnd  
Gnd  
Gnd  
Gnd  
Gnd  
Qin  
Reset  
Sleep  
Status  
Test  
Vdd  
Vdd  
9
64  
42  
5
27  
39  
12  
17  
22  
32  
Gnd  
Gnd  
CVdd  
Vdd  
23  
Intel Corporation  
CE6313  
Data Sheet  
Pin-out - alphabetical list (continued)  
Name  
CVdd  
CVdd  
CVdd  
No.  
34  
44  
Name  
No.  
28  
31  
Name  
No.  
57  
60  
Name  
Vdd  
XTI  
No.  
55  
19  
Gnd  
Gnd  
Gnd  
MDO[5]  
MDO[6]  
MDO[7]  
50  
33  
61  
20  
XTO  
4.8 Package details  
Figure 16 - Package dimensions  
5.0 References  
1. European Digital Video Broadcast Standard, ETS 300 421 (A1) Version 1.1.2 - 1997-08.  
ETS Secretariat  
06921 Sophia Antipolis Cedex  
France.  
2. Digital Satellite Equipment Control (DiSEqC)  
DiSEqC* Bus Specification Version 4.2 (February 25, 1998)  
EUTELSAT  
European Telecommunications Satellite Organisation  
70, rue Balard - 75502 PARIS Cedex 15  
France.  
6.0 Trademarks  
DiSEqC* is a trademark of EUTELSAT.  
24  
Intel Corporation  

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