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PDF SC9641 Data sheet ( Hoja de datos )
| Número de pieza | SC9641 | |
| Descripción | CD Digital Signal Processor | |
| Fabricantes | Silan | |
| Logotipo |  |
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SC9641
CD DIGITAL SERVO SIGNAL PROCESSOR(SLAVE MODE)
DESCRIPTION
The SC9641 is a single-chip CD processor for digital servo and ASIC
circuit. This LSI incorporates CD servo controller, CD signal processor,
digital audio DAC and built-in CPU interface.
FEATURES
* Supports 1X to 2X speed playback
* Command and sub code transmission adopts tri-line communication
or parallel communication
* Built-in MCU controls the CD and state feedback by communication
instructions of the communication bus.* Supports format of CD-A/V,
CD-R, CD-R/W and CD-ROM
APPLICATIONS
* CD, VCD and MP3 player
* Desk audio system
QFP-64-14 x 14-0.8
ORDERING INFORMATION
Device
SC9641
Package
QFP-64-14X14-0.8
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2008.03.24
Page 1 of 15
1 page  
www.DataSheet4U.com
SC9641
(Continued)
Pin No.
12
13
14
15
16
Pin name
RFIN
RFREF
Ir
VSSA2
VDDA2
17 CRIN
18 CROUT
19 MODE
20 MOT_CTRL
21 WCLK_OUT
22 SCLK_OUT
23 DATA_OUT
24 ERR
25 WCLK_IN
26 SCLK_IN
27 DATA_IN
28 ACK
29 MCLK_IN
30 CL16
31 DATA \ WR
32 STB \ RD
33 ACK
34 IO.7 \ DATA7
35 IO.6 \ DATA6
36 IO.5 \ DATA5
37 IO.4 \ DATA4
38 IO.3 \ DATA3
39 IO.2 \ DATA2
40 IO.1 \ DATA1
41 IO.0 \ DATA0
42 TEST
43 RESET
44 VDDA
45 VSSO
46 VDD0
Descriptions
EFM signal input
Comparator common mode input
Reference current output
Analog ground 2
Analog supply 2
Crystal oscillation circuit input. When the master clock is input externally, input it
from this pin.
Crystal oscillation circuit output.
Connect ground.
Control the spindle motor (during focusing and jumping, if MOT_CTRL output high
level signal, it can control the MOT control port of SA9529 after through 3 voltage
drop diodes, then prevent the spindle reverse; in other condition, the MOT-CTRL
output low level).
D/A interface. LR clock output.
D/A interface. Bit clock output.
D/A interface. Serial data output
C2 error flag
D/A interface. LR clock input.
D/A interface. Bit clock input.
D/A interface. Serial data input
Acknowledge Signal output pin (drain open, with pull up resistor).
DAC system clock input (16.9344MHz)
16.9344MHZ clock output
Data I/O port, it is shared with write port of parallel communication.
Control I/O port, it is shared with read port of parallel communication.(drain open,
with internal pull-up resistor).
Acknowledge signal port (drain open, with internal pull-up resistor).
General I/O port, it is shared with data bit 7 (drain open, with internal pull up resistor).
General I/O port, it is shared with data bit 6 (drain open, with internal pull up resistor).
General I/O port, it is shared with data bit 5 (drain open, with internal pull up resistor).
General I/O port, it is shared with data bit 4 (drain open, with internal pull up resistor).
General I/O port, it is shared with data bit 3 (drain open, with internal pull up resistor).
General I/O port, it is shared with data bit 2 (drain open, with internal pull up resistor).
General I/O port, it is shared with data bit 1 (drain open, with internal pull up resistor).
General I/O port, it is shared with data bit 0 (drain open, with internal pull up resistor).
Test pin.
Reset pin (active low)
Analog Supply
Analog Ground
Analog Supply
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2008.03.24
Page 5 of 15
5 Page 
www.DataSheet4U.com
3. CPU INTERFACE TIMING
SC9641
Note:
The interface protocol adopt fixed communication format. Every frame includes 24 bits, where 16 bits data code,
and 8 bits verify code.
COMMAND (8bits) + CHECK(4bits) + DATA(8bits) + CHECK(4bits)
4 bits verify code is obtained from high 4 bits XOR low 4 bits of the former 8 bits code.
The 8 bits DATA code is the master controller send to SC9641, or the SC9641 request read code. If the
COMMAND not set value, then the DATA after COMMAND is invalid, but the DATA cannot omit. COMMAND
and DATA send code from MSB to LSB. SC9641 operation according the master controller command and it is
single initiative communication.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2008.03.24
Page 11 of 15
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet SC9641.PDF ] | |
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