lc7872e Sanyo Semiconductor Corporation, lc7872e Datasheet - Page 9

• Manufacturer Part Number: lc7872e
• Description: Cd Graphics Decoder
• Manufacturer: Sanyo Semiconductor Corporation

Pin Functions
Pin No.
10
11
12
13
14
15
16
39
40
41
42
43
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
TRANS0
TRANS1
TRANS2
TRANS3
TRANS4
TRANS5
VSYNC
CSYNC
Symbol
CDGM
VIDEO
TEST1
4FSC2
FSCIN
SBCK
SBSY
MUTE
SFSY
TEST
EFLG
V
V
V
V
BIAS
LINE
RAS
CAS
DB0
DB1
DB2
DB3
PW
WE
DO
OE
S1
S2
CE
CL
A0
A1
A2
CB
YS
DD
A3
A4
A5
A6
A7
DD
DI
SS
SS
1
2
1
2
I/O
I/O
I/O
I/O
I/O
—
—
—
—
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
CD DSP selection
Subcode R to W readout clock
Subcode frame synchronization signal
Subcode R to W data
Subcode block synchronization signal
Digital system power supply
Serial input or control pin during serial output
Serial data output (N-ch open drain)
Serial data input
Serial data I/O clock
Control signal that invalidates the subcode data
Digital system ground
DRAM control
DRAM control
DRAM address
DRAM address
DRAM address
DRAM address
DRAM address
DRAM address
DRAM address
DRAM address
DRAM data
DRAM control
DRAM data
DRAM control
DRAM data
DRAM data
High: color bar output
Low: normal mode
Outputs a high level when a CD-G disk detected
Transparency digital output
Transparency digital output
Transparency digital output
Transparency digital output
Transparency digital output
Transparency digital output
Composite video D/A converter ground
Composite video D/A converter power supply
Ripple exclusion capacitor connection
Composite video output (8-bit D/A converter output)
Test pin. Must be tied low in normal operation (pull-down resistor built in)
When pin NP2 is high: High: 263H, Low: 262H
When pin NP2 is low: High: 312H, Low: 314H
Subcarrier clock input (feedback resistor built in)
Vertical synchronization signal output
Test pin. Must be tied low in normal operation (pull-down resistor built in)
Superimposition control output
Composite synchronization signal output
Superimposition mode external clock input (feedback resistor built in)
Error state monitor
(pull-down resistor built in)
LC7872E
Function
S1
0
1
1
S2
0
0
1
CD DSP
LC7861N/67
LC7860K/63
LC7868/69/681
Continued on next page.
No. 4868-9/17