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DV-L70U
9. IC FUNCTION LIST
9-1. IC201 MC44722A
Pin No.
Terminal name
1
CVBS/Cb
2
CVBS/Cb
3
CVBS/Cb Vdd
4
Y
5
Y
6
YVdd
7
C/Cr
8
C/Cr
9
CVdd
10
DA Vss
11
Ibias
12
DA Vdd
13
VReff
14
ChipA
15
TEST
16
SO
17
SDA/SI
18
SCL/SCK
19
SEL
20
DVss
21
CLOCK
22
DVdd
23
Reset
24
PAL/NTSC
25-32
DVIN7-0
33
TVIN
34
EXT
35
F/Vsync
36
Hsync
37
TP9
38-41
TP8-5
42
DVss
43
DVdd
44-47
TP4-1
48
TP0
• Block Diagram
DIGITAL VIDEO ENCORDER
I/O
O
Analog composite video signal output or Cb signal output current drive (positive)
O
Analog composite video signal output or Cb signal output current drive (negative)
Power Supply for CVBS / Cb DAC circuit
O
Analog luminance signal output current drive (positive)
O
Analog luminance signal output current drive (negative)
Power Supply for Y DAC circuit
O
Analog chrominance signal output or Cr signal output current drive (positive)
O
Analog chrominance signal output or Cr signal output current drive (negative)
Power Supply for C/Cr DAC circuit
Ground for DAC circuit
O
Reference current for the 3 DACs
Power Supply for DAC circuit
Reference full scale voltage for the 3 DACs
I2C chip address select {0 : 42(hex)/43(hex) 1 : 1C(hex)/1D(hex)}
I
TEST pin (Ground)
z(O)
If SPI mode, serial data output / If I2C mode, connect to ground
I/O(I)
Serial data input, Open drain output / If SPI mode, serial data input
I
Serial clock
(I)
Connect to Ground / If SPI mode, this pin is chip select
Ground for Digital circuit
I
27MHz clock input
Power Supply for Digital circuit
I
Reset signal, active LOW
I
NTSC/PAL select. This pin active only Reset time.(NTSC : Low PAL : High)
I
8-bit Multiplexd Y/Cr/Cb 4:2:2 data (ITU Rec656) input (1) or Multiplexd Y data
(ITU-Rec656/601) input in 16-bit input mode (DVIN7 : MSB)
I
TEST data input
I/O
Csync/Frame sync output or external VBI information input
I/O
Frame sync or Vertical sync input/output
I/O
Horizontal sync input/output
I/O
MUX switch in 8-bit X 2 Multiplexed Y/Cr/Cb 4:2:2 data (ITU-Rec656) input mode,
or Test data input/output
I/O
8-bit Multiplexed 4:2:2 data (ITU-Rec656/601) input (2), or Multiplexed Cr/Cb data
(ITU-Rec656/601) input in 16-bit input mode (MSB : TP8), or Test data input/output
Ground for Digital circuit
Power Supply for Digital circuit
I/O
8-bit Multiplexed 4:2:2 data (ITU-Rec656/601) input (2), or Multiplexed Cr/Cb data
(ITU-Rec656/601) input in 16-bit input mode (LSB : TP1), or Test data input/output
I/O
For test (should be ground)
34
ChipA
14
DVdd
43
DVdd
22
DVss
20
DVss
42
DVIN0~7
32~25
H, V
DVIN
Y
48~44 41~38
demux
TP0~8
C
b
TVIN
33
C
r
TP9
37
clock
21
Reset
23
12C/SPI
PAL/NTSC
24
16
17
18
Operation function
35
36
copy
Sync_generator
bus
protection
BG
CGM5_gen
CC_gen
0
off_set
+
+
0
0
Modulator
0
TEST
19
15
9-1
YVdd
6
3
CVBS/CbVDD
9
CVdd
YOUT
4
0
YOUT
5
1
CVBSOUT/Cb
0
2
CVBSOUT/Cb
COUT/Cr
7
0
COUT/Cr
8
13
VReff
11
Ibias
12
DAVdd
MC44722/3
10
DAVss
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