2003 Oct 01 6
Philips Semiconductors Product specification
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
SAA7826
6 PINNING
SYMBOL PIN I/O DESCRIPTION
LFPOWER 1 I laser power supply
EXFILTER 2 O 10 nF capacitor for laser start-up control
MONITOR 3 I laser monitor diode
SENSE 4 I OPU ground reference point for MONITOR measurement
V
SSA1
5 SUP analog ground 1
I
REF
6 O reference current output (24 kΩ resistor connected to analog ground)
V
DDA1
7 SUP analog supply voltage 1
V
REFO
8 I/O servo reference voltage
D1 9 I diode voltage/current input (central diode signal input)
D2 10 I diode voltage/current input (central diode signal input)
D3 11 I diode voltage/current input (central diode signal input)
D4 12 I diode voltage/current input (central diode signal input)
R1 13 I diode voltage/current input (satellite diode signal input)
R2 14 I diode voltage/current input (satellite diode signal input)
CSLICE 15 I/O 10 nF capacitor for adaptive HF data slicer
V
DDA2
16 SUP analog supply voltage 2
V
SSA2
17 SUP analog ground 2
OSCOUT 18 O crystal/resonator output
OSCIN 19 I crystal/resonator input
V
SSA3
20 SUP analog ground 3
DACGND 21 I audio DAC ground
DACRP 22 O audio DAC right channel differential positive output
DACRN 23 O audio DAC right channel differential negative output
DACV
ref
24 I/O audio DAC decoupling point (10 µF or 100 nF to ground)
DACLN 25 O audio DAC left channel differential negative output
DACLP 26 O audio DAC left channel differential positive output
DACV
pos
27 I audio DAC positive supply voltage
BUFV
pos
28 I audio buffer positive supply voltage
BUFINR 29 I audio buffer right input
BUFOUTR 30 O audio buffer right output
BUFOUTL 31 O audio buffer left output
BUFINL 32 I audio buffer left input
BUFGND 33 I audio buffer ground
LKILL 34 O KILL output for left channel (configurable as open-drain)
RKILL 35 O KILL output for right channel (configurable as open-drain)
CDTRDY 36 O CD text output to microcontroller ready flag
CDTDATA 37 O CD text output data to microcontroller
CDTCLK 38 I CD text microcontroller clock input
CFLAG 39 O correction flag output (open-drain)
V
SSD1
40 SUP digital ground 1
