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
GND
Spindle , sled and
tray motor driver
GND
GND
DA0
DA9
RAD
DBUS0
FOC
Driver
SLED
MOTO1
DBUS15
LD0
SC9827
Tray position
TRAY_SW
SLED_SW
monitor signal
Sled driver position
monitor signal
LD7
LA19
AVCC AGND
LA0
RF processor
Focus , tracking driver signal
Chip
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0
2009.03.26
Page 6 of 7
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