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IC5 : MN662741RPB1 [P.C.B. CD]
Signal Processor & Controller
17
58 59 79 77 20 63 19 61 49 52
VDD
60
VSS
57
DVDD1
4
DVSS1
5
GENERATOR
/RST
18
PITCH CONTROL
/TEST
71
FE
32
MICRO COMPUTER
TE
33
RFENV
34
TRCRS
37
VDET
35
BDO
39
/RFDET
38
OUTPUT
PORT
OFT
36
10 43
40 42 11 12 41 30 31 28 27 22 25 54 61
Pin No.
Name
I/O
1
BCLK
O
Bit clock output for SRDATA
2
LRCK
O
L/R identification signal output
3
SRDATA
O
Serial data output
I
4
DVDD1
Power supply for digital circuits
5
DVSS1
I
GND for digital circuits
6
TX
O
Digital audio interface output signal
7
MCLK
I
Microcomputer command clock signal input (Latches the data at a rising edge)
I
8
MDATA
Microcomputer command data input
9
MLD
I
Microcomputer command load signal input
10
SENSE
O
Sense signal output (OFT, FESL, NACEND, NAJEND, SFG, NWTEND)
O
11
Focus servo pull-in signal
FLOCK
12
O
Tracking servo pull-in signal
TLOCK
13
BLKCK
O
Sub-code block clock signal
14
SQCK
I
External clock input for sub-code Q register
O
15
SUBQ
Sub-code Q data output
16
DMUTE
I
Muting input
17
STAT
O
Status signal (CRC, CUE, CLVS, TTSTOP, FCLV, SQOK, FLAG6, SENSE, FLOCK, TLOCK)
18
I
Reset input (Reset when being at L for 472 ns or longer at IOSEL = L)
RST
19
O
SMCK
8.4672MHz clock signal output at MSEL = H
20
PMCK
O
88.2kHz clock signal output
21
TRV
O
Traverse (Feed) forced feed output
O
22
TVD
Traverse (Feed) drive output
23
PC
O
Spindle motor ON signal
24
ECM
O
Spindle motor drive signal (Forced mode output)
25
ECS
O
Spindle motor drive signal (Servo error signal output)
26
O
KICK
Kick pulse output
27
TRD
O
Tracking drive output
28
FOD
O
Focus drive output
8 7 9
78 76 44 46 45 47 48 52 53
TIMING
DSL ¥ PLL VCO
VCO
INTERFACE
CIRC ERROR CORRECTION
DEINTERLEAVE
SERVO
CPU
INTERPOLATION
SOFT MUTING
DIGITAL
D/A
CONVERTER
ATTENUATION
PEAK DETECT
AUTO CUE
29 26 21
16
1
50 51
15 14 80
69
69 68
55 56 62 13 67 66
SUB CODE
BUFFER
EFM DEMODULATION
SYNC INTERPOLATION
SUB-CODE DEMODULATION
16K
SRAM
DIGITAL
CLV
AUDIO
SERVO
INTERFACE
3
2
23
24
6
64 65
Function
H : L-ch audio data
L : R-ch audio data
L : Load
(L : Pull-in status)
(L : Pull-in status)
(f
=75Hz)
BLKCK
H : Mute
4.2336MHz clock signal output at MSEL = L
3-State
L : ON
3-State
3-State
GX-900
70
78 79 80
DIGITAL DEEMPHASIS
8 TIMES
OVER SAMPLING
DIGITAL FILTER
1-BIT DAC
PWM
PWM
(L)
(R)
72
73
74
75
(+5)
L : Reset
(NC)
(NC)
(NC)
52
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