Philips AZ7381 Service Manual page 12

PINNING OF INTEGRATED CIRCUITS
TDA1300T – HF-PREAMPLIFIER AND LASER SUPPLY CIRCUIT (part of CD-drive VAM2103)
Pin Name Direction
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HF-preamp → CD7
1 O4
HF-preamp → CD7
2 O6
HF-preamp → CD7
3 O3
HF-preamp → CD7
4 O1
HF-preamp → CD7
5 O5
HF-preamp → CD7
6 O2
CD7 → HF-preamp
7 LDon
8 Vddl +3
HF-preamp →
9 Vrfe
10 Vrf not connected
11 HG GND
CD7 → HF-preamp
12 LS
13 C external connection
→ HF-preamp
14 Adj
15 GND GND
HF-preamp → laser diode
16 Lo
monitor diode → HF-preamp
17 MI
18 Vdd +3
19 I2 GND
diode array → HF-preamp
20 I5
diode array → HF-preamp
21 I1
diode array → HF-preamp
22 I3
diode array → HF-preamp
23 I6
diode array → HF-preamp
24 I4
TC9404FN – Σ-∆ MODULATION DAC WITH ANALOG FILTER
Pin Name Direction
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
1 VDD +3
2 T1 GND
3 P/S +3
4 VDA +3
DAC → sound control
5 RO
6 GNDA GND
→ DAC
7 VR
8 GNDA GND
DAC → sound control
9 LO
10 VDA +3
11 L/R not connected
12 GNDD GND
DAC →
13 MCK
14 GNDX GND
→ DAC
15 XI
DAC →
16 XO
17 VDX +3
18 BS GND
(LATCH)
19 EMP GND
(SHIFT)
20 SM GND
(ATT)
21 HS +3
NPC → DAC
22 DATA
NPC → DAC
23 BCK
NPC → DAC
24 LRCK
CS 46 521
3-5
Description
output of current amplifier 4
output of current amplifier 6
output of current amplifier 3
output of current amplifier 1
output of current amplifier 5
output of current amplifier 2
control pin for switching the laser on/off
laser supply voltage
equalized output voltage of sum signal of amplifiers 1...4
unequalized output
control pin for gain switch
control pin for double speed switch (switches equalization)
external capacitor (bandwidth of ALPC)
reference input
0V supply, substrate connection
current output to laser diode
laser monitor diode input
positive supply voltage
photo detector input 2 (not used)
photo detector input 5 (satellite)
photo detector input 1 (central)
photo detector input 3 (central)
photo detector input 6 (satellite)
photo detector input 4 (central)
Description
logic power supply
test pin
parallel control input, serial control switching input
analog power supply
audio output right channel
analog ground
reference voltage input
analog ground
audio output left channel
analog power supply
digital 0 detection output
64fs/256fs/384fs system clock input
master clock output
crystal oscillator ground
crystal oscillator input
crystal oscillator output
crystal oscillator power supply
parallel control: de-emphasis filter mode select input
serial control: data latch signal input for ATT;
parallel control: de-emphasis filter control input
serial control: shift clock input for ATT;
parallel control: soft mute control input
serial control: data input for ATT;
standard/double speed operation mode switching input
data input
bit clock input
LR clock input