Sharp DV-600S Service Manual page 38

DV-600S
DV-600H
Pin No. Terminal name
88 BUS3
89 VDD
90 VSS
91 BUCK
92 /CCE
93 TEST4
94 /TEMOD
95 /RST
96 TEST0
97 /HSO
98 /UHSO
99 EMPH
100 LRCK
• Block Diagram
DVDD
RO
DVSS
DVR
LO
DVDD
TEST1
TEST2
TEST3
BUS0
BUS1
BUS2
BUS3
VDD
VSS
BUCK
/CCE
TEST4
/TEMOD
/RST
TEST0
/HSO
/UHSO
EMPH
LRCX
I/O
I/O
– Digital + power terminal.
– Digital ground terminal.
I Microcomputer interface clock input terminal.
I Microcomputer interface chip enable signal input terminal.
BUS0 to 3 is active in "L" state.
I Test terminal.
To be opened usually.
I Local test mode selection terminal.
I Reset signal input terminal.
Reset state: "L"
I Test terminal.
To be opened usually.
O Playback speed mode flag output terminal.
O
/UHSO
H
H
L
L
O Subcode Q data emphasis flag output terminal.
Emphasis ON: "H" OFF: "L"
Output polarity can be inverted by the command.
O Channel clock (44.1 kHz) output terminal.
L channel "L" R channel: "H"
Output polarity can be inverted by the command.
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
76
77
78
1Bit
79
LPF
DAC
Clock
80
genelator
81
82
83
84
85
Micon
86
Address circuit
inter
87
face
88
89
90
1Gk RAM
91
Correction
92
circuit
93
94
95
96
Digital out
97
Audio output
98
circuit
99
100
1 2 3 4 5 6 7 8
Operation function
/HSO Playback speed
H x1 speed playback
L x2 speed playback
H x4 speed playback
L x8 speed playback
Servo control
Digital
ROM
equalizer
Automatic
A/D
RAM
adjusting circuit
CLV servo
Sync signal
protection
EFM
demodulation PWM
VCO
Subcode
demodulation
circuit
PLL TMAX
Status
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
11-21
Schmidt input
Schmidt input
Pull-up resistor
built in.
Pull-up resistor
built in.
Pull-up resistor
built in.
Pull-up resistor
built in.
50 DMO
49 FVO
48 FMO
PWM
47 TEBC
46 RFGC
45 VREF
D/A
44 TRO
43 FOO
42 TEZI
+
–
41 TEIN
40 TSIN
39 SBAD
38 FEIN
+
–
37 RFRP
36 RFZI
+
–
35 RFCT
34 AVDD
33 RFIN
Data slicer
32 SLCO
31 AVSS
30 VCOF
29 VCOREF
28 PVREF
+
27 LPFO
–
26 LPFN
Remarks