Philips AX5200 Service Manual page 11

PIN DESCRIPTION OF INTEGRATED CIRCUITS
MN662786SB – SIGNAL PROCESSING IC
Pin Name
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1 DRV
DD
2 D0
3 D1
4 NWE
5 NRAS
6 D2
7 D3
8 NCAS0
9 NCAS1
10 A8
11 A7
12 A6
13 A5
14 A4
15 A9
16 A0
17 A1
18 A2
19 A3
20 DV
SS2
21 DV
DD2
22 SPOUT
23 TRVP
24 TRVM
25 TRP
26 TRM
27 FOP
28 FOM
29 IOV
DD1
30 TBAL
31 FBAL
32 FE
33 TE
34 RFENV
35 OFT
36 NRFDET
37 BDO
38 LDON
39 ARF
40 I
REF
41 ADPV
CC
42 DSLF
43 DRF
44 PLLF
45 VCOF
46 AV
DD2
47 AV
SS2
48 OUTL
49 AV
SS1
50 OUTR
51 AV
DD1
52 FSEL
53 TMOD1
54 TMOD2
55 *FLAG
56 *IPFLAG
57 *EXT0
58 *EXT1
59 IOV
DD2
60 TX
61 MCLK
62 MDATA
63 MLD
64 *BLKCK
65 PWMSEL
66 SMCK
67 DMUTE
68 STAT
69 NRST
I/O Description
I Power supply for DRAM interface (Pin 2 to 19,and 80)
I/O DRAM data I/O signal 0
I/O DRAM data I/O signal 1
O DRAM write enable signal
O DRAM RAS control signal
I/O DRAM data I/O signal 2
I/O DRAM data I/O signal 3
O DRAM CAS control signal 0
O DRAM CAS control signal 1
O DRAM adress signal 8
O DRAM adress signal 7
O DRAM adress signal 6
O DRAM adress signal 5
O DRAM adress signal 4
O DRAM adress signal 9
O DRAM adress signal 0
O DRAM adress signal 1
O DRAM adress signal 2
O DRAM adress signal 3
I Ground for digital circuits
I Power supply for digital circuits
O Spindle motor drive dignal output (Absolute value output)
O Traverse drive output
O Traverse drive output
O Traverse drive output
O Traverse drive output
O Focus drive output
O Focus drive output
I I/O power supply
O Tracking balance adjustment output
O Focus balance adjustment output
I Focus error signal input
I Tracking error signal input (Analog input)
I RF envelope signal input
I Off-track signal input
I RF detection signal input
I Dropout signal input
O Laser ON signal output
I RF signal input
I Reference current input
I A/D converter reference voltage input
O DSL loop filter
I DSL bias
O PLL loop filte
O Jitter-free VCO loop filter
I Power supply for analog circuits (For DSL,PLL,VCOF,A/Dconverter,and D/A converter)
I Ground for analog circuits (For DSL,PLL,VCOF,A/Dconverter,and D/A converter
O L-ch audio output
I Ground for analog circuit
O R-ch audio output
I Power supply for analog circuits (For audio output stage)
I Noise filter for microcontroller interface ON/OFF selection input L:ON H:OFF
I Test input pin
I Test input pin
O Flag signal output
O Interpolation flag signal output
I/O Expansion I/O port 0
I/O Expansion I/O port 1
I I/O power supply
O Digital audio interface signal output
I Microcontroller command clock signal input (Latches the data at a rising edge)
I Microcontroller command data signal input
I Microcontroller command load signal input
O Subcode block clock signal output
I/O PWM output mode seletion input
O 4.236-MHz/8.4672-MHz clock signal output
I/O Muting input
O Status signal output
I Reset input
3 - 1
(+side output)
(-side output)
(+side output)
(-side output)
(+side output)
(-side output)
(Analog input)
(Analog input)
H: Off track
L: Detect
H: Dropout
H: ON
(Analog input)
(For audio output stage)
Normal: L
Normal: L
H:Interpolation
L:Load
f=75 Hz (Normal-speed playback)
L: Direct H: 3-state
H: Mute
L:Reset