Philips AZ9015, Service Manual, Page: 13 / 32

PIN DESCRIPTION OF INTEGRATED CIRCUITS
TDA1300T – HF-PREAMPLIFIER AND LASER SUPPLY CIRCUIT (part of CD-drive VAM2103/08)
Pin Name Direction Description
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1 O4 HF-preamp
→
CD10 output of current amplifier 4
2 O6 HF-preamp
→
CD10 output of current amplifier 6
3 O3 HF-preamp
→
CD10 output of current amplifier 3
4 O1 HF-preamp
→
CD10 output of current amplifier 1
5 O5 HF-preamp
→
CD10 output of current amplifier 5
6 O2 HF-preamp
→
CD10 output of current amplifier 2
7 LDON CD10
→
HF-preamp control pin for switching the laser on/off
8 VDDL +2.7 laser supply voltage
9 VRFE HF-preamp
→
equalized output voltage of sum signal of amplifiers 1...4
10 VRF HF-preamp
→
unequalized output
11 HG GND control pin for gain switch
12 LS CD10
→
HF-preamp control pin for double speed switch (switches equalization)
13 C external connection external capacitor (bandwidth of ALPC)
14 ADJ
→
HF-preamp reference input
15 GND GND 0V supply, substrate connection
16 LO HF-preamp
→
laser diode current output to laser diode
17 MI monitor diode
→
HF-preamp laser monitor diode input
18 VDD +3 positive supply voltage
19 I2 GND photo detector input 2 (not used)
20 I5 diode array
→
HF-preamp photo detector input 5 (satellite)
21 I1 diode array
→
HF-preamp photo detector input 1 (central)
22 I3 diode array
→
HF-preamp photo detector input 3 (central)
23 I6 diode array
→
HF-preamp photo detector input 6 (satellite)
24 I4 diode array
→
HF-preamp photo detector input 4 (central)
MPC17A51VM – 4-CHANNEL H-BRIDGE SERVODRIVER
Pin Name Direction Description
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1 VG servo driver
→
charge pump output, supply for pre-driver circuit
2 DGND GND digital ground for control circuit
3 CLK
→
servo driver clock signal input
4 OE
→
servo driver output enable
5 VLG +2.7 power supply input for control circuit
6 VIN12 +A power supply input for CH1 and CH2 H-bridge driver block
7 OUT1A servo driver
→
focus actuator CH1 H-bridge output A
8 PGND1 GND power ground for CH1 H-bridge driver block
9 OUT1B servo driver
→
focus actuator CH1 H-bridge output B
10 OUT2B servo driver
→
track actuator CH2 H-bridge output B
11 PGND2 GND power ground for CH2 H-bridge driver block
12 OUT2A servo driver
→
track actuator CH2 H-bridge output A
13 VIN1-2 +A power supply input for CH1 and CH2 H-bridge driver block
14 CF2
→
servo driver CH2 capacitor connection for phase compensation
15 ERR2 CD10
→
servo driver CH2 error level input (radial error signal)
16 ERR1 CD10
→
servo driver CH1 error level input (focus error signal)
17 CF1
→
servo driver CH1 capacitor connection for phase compensation
18 VR +1.4 reference voltage input
19 AGND GND analog ground for control circuit
20 CF3
→
servo driver CH3 capacitor connection for phase compensation
21 ERR3 CD10
→
servo driver CH3 error level input (slide error signal)
22 ERR4 CD10/µP
→
servo driver CH4 error level input (disc motor speed error signal)
23 CF4
→
servo driver CH4 capacitor connection for phase compensation
24 VIN3-4 +A power supply input for CH3 and CH4 H-bridge driver block
25 OUT4A servo driver
→
disc motor CH4 H-bridge output A
26 PGND4 GND power ground for CH4 H-bridge driver block
27 OUT4B servo driver
→
disc motor CH4 H-bridge output B
28 OUT3B servo driver
→
slide motor CH3 H-bridge output B
29 PGND3 GND power ground for CH3 H-bridge driver block
30 OUT3A servo driver
→
slide motor CH3 H-bridge output A
31 VIN34 +A power supply input for CH3 and CH4 H-bridge driver block
32 VCG +2.7 power supply input for charge pump circuit
33 C2L
→
servo driver capacitor connection for charge pump
34 C1L
→
servo driver capacitor connection for charge pump
35 C1H
→
servo driver capacitor connection for charge pump
36 C2H
→
servo driver capacitor connection for charge pump
3-1
CS 46 698