SC9827
FUNCTION DESCRIPTON
SC9827 is a single chip SOC for CD-G system, it integrates CD servo and correct decoder, Audio DAC.
Working with the RF pre-processor of CD composes a low cost and high performance CD-G system solution.
CD servo decode module
CD servo decoder is the main module of SC9827, it can perform the CD servo and decode function, and
support single/double speed switch, compatible with CD/CD-R/CD-RW/CD-G.
Audio DAC module
This unit is 16 bits audio DAC, output PWM waveform, and connect to low-filter.
CD-G decode module
This module has CD-G decode functions.
TYPICAL APPLICATION CIRCUIT
GND
Spindle , sled and
tray motor driver
GND
GND
GND
DA0
CROUT
CRIN
ADACR
ADACL
DA9
DBUS0
RAD
Driver
FOC
SLED
MOTO1
Tray position
monitor signal
Sled driver position
monitor signal
TRAY_SW
SLED_SW
REREF
VDDA1
VDDA2
VSSA1
VSSA2
SC9827
DBUS15
LD0
EEPROM
LD7
LA19
VCOM
IDATA
RFIN
AVCC
AGND
LA0
C
D
B
A
RF processor
Focus , tracking driver signal
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
E
F
Chip
REV:1.0
2009.03.26
Page 6 of 7
DRAM
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
