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參數資料
| 型號： | MC44725VFU |
| 廠商： | Motorola, Inc. |
| 英文描述： | Digital Video Encoder |
| 中文描述： | 數字視頻編碼器 |
| 文件頁數： | 3/39頁 |
| 文件大?。?/td> | 518K |
| 代理商： | MC44725VFU |
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MC44724/5 Rev 0.21 03/25/97
No.
This document contains information on a new product. Specifications and information herein are subject to change without notice.
[Pin Descriptions]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39~46
47
48
49
50
51
CVBS/Cb/B1
CVBS/Cb/B1
CVBS/Cb/B1Vdd
Y/G1
Y/G1
Y/G1Vdd
C/Cr/R1
C/Cr/R1
C/Cr/R1Vdd
DAVss
Ibias1
Vref1
DAVdd
Vref2
Ibias2
NC
CVBS/Cb/B2
CVBS/Cb/B2
CVBS/Cb/B2Vdd
Y/G2
Y/G2
Y/GVdd
C/Cr/R2
C/Cr/R2
C/Cr/R2Vdd
ChipA
TEST
DVss
CLOCK
DVdd
Reset
PAL/NTSC
SO z(O) If SPI mode, serial data output / If I2C mode, connect to Ground
SDA/SI I/O(I) Serial data input, Open drain output / If SPI mode, serial data input
SCL/SCK
I
Serial clock
SEL
(I) Connect to Ground / If SPI mode, this pin is chip select
DVdd
Power Supply for Digital circuit
DVss
Ground for Digital circuit
DVIN7~0
I/O Multiplexed 4:2:2 data(CCIR Rec656/601) input (1)
TVIN
I/O TEST data input
EXT
I/O Csync/Frame sync output, or external VBI information input
F/Vsync
I/O Frame sync or Vertical sync input/output
Hsync
I/O Horizontal sync input/output
DATST
I
MUX swith in 8-bit X 2 Multiplexed 4:2:2 data(CCIR Rec656/601) input (1) and (2), or
for D/A converter test
TP8~5
I/O 8-bit Multiplexed 4:2:2 data(CCIR Rec656/601) input (2), or Multiplexed Cr/Cb data
(CCIR Rec656/601) input in 16-bit input mode, or Test data input/output (TP8 : MSB)
DVss
Ground for Digital circuit
DVdd
Power Supply for Digital circuit
TP4~1
I/O Multiplexed 4:2:2 data(CCIR Rec656/601) input (2), or Multiplexed Cr/Cb data
(CCIR Rec656/601) input in 16-bit input mode, or Test data input/output (TP1 : LSB)
TP0
I/O Test data inout/output
DLVdd
Power Supply D/A Converter Digital circuit
DLVss
Ground for D/A Coverter Digital circuit
O
O
Analog composite video signal output or Cb or B signal output current drive(positive)
Analog composite video signal output or Cb or B signal output current drive(negative)
Power Supply for CVBS / Cb / B DAC circuit
Analog luminance or G signal output current drive(positive)
Analog luminance or G signal output current drive(negative)
Power Supply for Y / G DAC circuit
Analog chrominance signal output or Cr or R signal output current drive(positive)
Analog chrominance signal output or Cr or R signal output current drive(negative)
Power Supply for C / Cr /R DAC circuit
Ground for DAC circuit
Reference current for the 3 DACs1
Reference full scale voltage for the 3 DACs1
Power Supply for the DACs
Reference full scale voltage for the 3 DACs2
Reference current for the 3 DACs2
No Connect to pin
Analog composite video signal output or Cb or B signal output current drive(positive)
Analog composite video signal output or Cb or B signal output current drive(negative)
Power Supply for CVBS / Cb / B DAC circuit
Analog luminance or G signal output current drive(positive)
Analog luminance or G signal output current drive(negative)
Power Supply for Y / G DAC circuit
Analog chrominance signal output or Cr or R signal output current drive(positive)
Analog chrominance signal output or Cr or R signal output current drive(negative)
Power Supply for C / Cr /R DAC circuit
I2C chip address select { 0 : 40(hex)/41(hex) 1 : 1D(hex )/1E(hex) }
TEST pin(Ground)
Ground for Digital circuit
27MHz clock input
Power Supply for Digital circuit
Reset signal, active LOW
NTSC/PAL select . This pin active only Reset time. (NTSC : Low PAL : High )
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
52~55
56
57
58~61
62
63
64
3
PIN NAME
I/O
DESCRIPTIONS
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