VR-4080-B/4090-B/4700/4900
12
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Description
1
DIR_PD
O
DIR Power Down
2
DIR_CS
O
DIR Chip Select
3
REC_6dB
O
REC Gain Changeover(When HDCD +6dB ) H : +6dB on
4
CTRL_A
O
Video Selector Control A(9993)
5
CTRL_B
O
Video Selector Control B(9993)
6
FSC_CTRL
O
Video Selector FSC Control(9993)
7
RESET
I
Reset in
8
VDD
+5V Power Supply
9
X2
-
8.0MHz Oscillator
10
X1
-
8.0MHz Oscillator
11
VSS
-
Connected to GND
12
COMP_A_A
O
Composite Select RoomA A
13
COMP_A_B
O
Composite Select RoomA B
14
COMP_A_C
O
Composite Select RoomA C
15
COMP_A_D
O
Composite Select RoomA D
16
COMP_A_E
O
Composite Select RoomA E
17
COMP_B_A
O
Composite Select RoomB A
18
COMP_B_B
O
Composite Select RoomB B
19
COMP_B_E
O
Composite Select RoomB E
20
VSEL
O
VSEL
21
SUB_MUTE
O
Sub Microcomputer Analog Mute
22
DAIN_MUTE
I
DAC Input Mute
23
NC
I
Unused
24
PCM ZERO
I
PCM Zero Data Detection(KPCM)
25
D.R.I.V.E.
O
DSP DRIVE/HDCD Control(KPCM) L: DRIVE/HDCD on
26
HDCD_6dB
I
DSP HDCD +6dB Detection
27
OVER_LEVEL
I
DSP Over Level Detection
28
DTS_SENS
I
DSP DTS Header Detection(KPCM)
29
MUTE
O
DSP Mute Control
30
HDCD
I
DSP HDCD Signal Detection
31
BUSY
I
DSP Status BUSY
32
DSP_RESET
O
DSP IC Reset
33
RD/WR
O
DSP RD/WR
34
REQ
O
DSP REQ
35
ACK
I
DSP ACK
36-43
DATA_7-0
I/O
DSP DATA_7-0
44
NC
-
Unused
45
GND
-
Connected to GND
46
TEST
-
Connected to GND
47
MREQ
I
Main Computer Master Request
48
SREQ
O
Main Computer Slave Request
49
MCK
I
Main Computer Master Clock
50
MDT
I
Main Computer Master Data
51
SDT
O
Main Computer Slave Data
52
Y_C_SEL_B
O
Y/C Select B
53
Y_C_SEL_A
O
Y/C Select
54
DAC96
O
DAC Double speed sampling mode control
55
VDD
-
+5V Power Supply
56-58
DSEL_C-A
O
Digital Input Selector Control C-A
59
CTRL_A2
O
Video Selector Control A2
60
OPT_DET
O
OPTICAL Digital Input Detection (A/Din)
61
AD_RESET O
ADC
Reset
62
DAOUT_MUTE
O
DAC Output Mute
63
DAC_PD
O
DAC Power Down
64,65
VDD
-
+3.3V Power Supply
6-2 Pin Description
