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SAA7824 Datasheet, PDF (6/89 Pages) NXP Semiconductors – CD audio decoder, digital servo and filterless DAC with integrated pre-amp and laser control (PhonIC)
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Philips Semiconductors
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
Product specification
SAA7824
6 PINNING
SYMBOL
PIN
LFPOWER
1
EXFILTER
2
MONITOR
3
SENSE
4
VSSA1
5
IREF
6
VDDA1
7
VREFO
8
D1
9
D2
10
D3
11
D4
12
R1
13
R2
14
CSLICE
15
VDDA2
16
VSSA2
17
OSCOUT
18
OSCIN
19
VSSA3
20
DACGND
21
DACRP
22
DACRN
23
DACVref
24
DACLN
25
DACLP
26
DACVpos
27
BUFVpos
28
BUFINR
29
BUFOUTR
30
BUFOUTL
31
BUFINL
32
BUFGND
33
LKILL
34
RKILL
35
CDTRDY
36
CDTDATA
37
CDTCLK
38
CFLAG
39
VSSD1
40
2003 Oct 01
I/O
I
O
I
I
SUP
O
SUP
I/O
I
I
I
I
I
I
I/O
SUP
SUP
O
I
SUP
I
O
O
I/O
O
O
I
I
I
O
O
I
I
O
O
O
O
I
O
SUP
DESCRIPTION
laser power supply
10 nF capacitor for laser start-up control
laser monitor diode
OPU ground reference point for MONITOR measurement
analog ground 1
reference current output (24 kΩ resistor connected to analog ground)
analog supply voltage 1
servo reference voltage
diode voltage/current input (central diode signal input)
diode voltage/current input (central diode signal input)
diode voltage/current input (central diode signal input)
diode voltage/current input (central diode signal input)
diode voltage/current input (satellite diode signal input)
diode voltage/current input (satellite diode signal input)
10 nF capacitor for adaptive HF data slicer
analog supply voltage 2
analog ground 2
crystal/resonator output
crystal/resonator input
analog ground 3
audio DAC ground
audio DAC right channel differential positive output
audio DAC right channel differential negative output
audio DAC decoupling point (10 µF or 100 nF to ground
audio DAC left channel differential negative output
audio DAC left channel differential positive output
audio DAC positive supply voltage
audio buffer positive supply voltage
audio buffer right input
audio buffer right output
audio buffer left output
audio buffer left input
audio buffer ground
KILL output for left channel (configurable as open-drain)
KILL output for right channel (configurable as open-drain)
CD text output to microcontroller ready flag
CD text output data to microcontroller
CD text microcontroller clock input
correction flag output (open-drain)
digital ground 1
6
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