SC9641 Silan, SC9641 Datasheet
SC9641
Related parts for SC9641
SC9641 Summary of contents
Page 1
... 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 speed playback * Command and sub code transmission adopts tri-line communication ...
Page 2
... VCOM V Vadc Idata I LDON I ERR I OH1 I OL1 V IOL1=1mA OL1 V IOH1=-1mA OH1 I RAD I FOC I SLED SC9641 Unit Min. Typ. Max. Unit 4.5 5.0 5 1 2.0 2 VCOM VCOM V 0.462 2.313 ...
Page 3
... OLmoto V IOHmoto=-10mA OHmoto High V ILH 7, Low V IHL V OHda V OLda (THD+N)/S 0~19 kHz 19~20 kHz 24KHz KHz Filter_DA KHz 64 ~68 KHz 68KHz 69~ 88KHz Fsystem FSCLK_IN FWCLK_IN SC9641 Min. Typ. Max. Unit 0 0 -10 0 ...
Page 4
... Central diode current signal input Central diode current signal input Central diode current signal input Satellite diode current signal input Satellite diode current signal input DC voltage input ADC reference voltage output Data signal feed-back current output SC9641 (To be continued) REV:1.0 2008.03.24 Page ...
Page 5
... General I/O port shared with data bit 1 (drain open, with internal pull up resistor). General I/O port shared with data bit 0 (drain open, with internal pull up resistor). Test pin. Reset pin (active low) Analog Supply Analog Ground Analog Supply SC9641 (To be continued) REV:1.0 2008.03.24 Page ...
Page 6
... The low 5 bits set motor rotate speed lower limit: range (00000B~10000B) The high 3 bits set motor rotate upper limit : (10000B~10111B) According to the initial value, if the motor speed is in the range of 01111B~100111B , it consider the motor is stable, and can carry the next operation. SC9641 (To be continued) REV:1.0 2008.03.24 Page ...
Page 7
... This command used for control sled motor in or out after servo stop: 5FH + 81H, 0FH + 21H Sled motor sled inside. 5FH + 7FH, 0FH + 21H Sled motor sled outside. 5FH + 00H, 0FH + 21H Sled motor stop. SC9641 (To be continued) REV:1.0 2008.03.24 Page ...
Page 8
... NEXT_AMIN, NEXT_ASEC, NEXT_AFRM is 0XFF; this command is treat with the copy disc.(he unit of the time is 100ms). BIT2, BIT1, BIT0------set SC9641 internal DAC data input format, the default is B110; BIT2: 1----single data input. ...
Page 9
... Not fast forward the export section or not fast backward the import section have been fast forward the export section or fast backward to the lay in section or play to the export section. SC9641 (To be continued) REV:1.0 2008.03.24 Page ...
Page 10
... Continue read ten Q sub-code (BCD code), this command is active in the parallel mode. Read motor speed information, normal play: b00010000, stop : b00000000 when the motor is accelerated from 0 to stable play exceed the b00010000, it will stabilization at b00010000. SC9641 REV:1.0 2008.03.24 Page ...
Page 11
... 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 ...
Page 12
... In the transmitting, the master controller transmits the DATA when the ACK is low, and the transmitted DATA is available at STB is high, SC9641 complete write 1 bit after ACK become high. 2 Master controller receive data 1) After master controller transmitted the data code, the sub-controller check the 8 bits command match the check data, then send the request data to master controller ...
Page 13
... Read mode: ACK_H a. The system set RD: MSB (T1), and begin to read operation. b. The system wait for SC9461 response ACK: MSB (T2) (SC9641 set ACK after data ready: MSB) c. After the system read out the data, set the RD: LSB (T3). d. The system wait for the response of SC9641: LSB (T4). ...
Page 14
... In order to keep the communication normally, SC9641 design the error process in the program communicate protocol. During the communication, the max time of SC9641 wait system command (WR, RD) is 130us, if the wait time is more than 130us, SC9641 regard this communication error, and end this operation, wait the next communication. ...
Page 15
... MOS devices should be packed for dispatch in antistatic/conductive containers. Note: Silan reserves the right to make changes without notice in this specification for the improvement of the design and performance. Silan will supply the best possible product for customers. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC9641 UNIT: mm REV:1.0 2008.03.24 Page ...