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參數(shù)資料
| 型號： | ADV7176KS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | Integrated Digital CCIR-601 YCrCb to PAL/NTSC Video Encoder |
| 中文描述： | COLOR SIGNAL ENCODER, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁數(shù)： | 5/36頁 |
| 文件大?。?/td> | 447K |
| 代理商： | ADV7176KS |
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ADV7175/ADV7176
REV. A
–5–
PIN DE SCRIPT ION
Mnemonic
Input/Output
Function
P15-P0
I
8-Bit 4:2:2 Multiplexed YCrCb Pixel Port (P7–P0) or
16-Bit YCrCb Pixel Port (P15–P0). P0 represents the LSB.
T T L Clock Input. Requires a stable 27 MHz reference Clock for proper operation.
Alternatively a 24.52 MHz (NT SC) or 29.5 MHz (PAL) can be used for square pixel
operation.
HSYNC
(Modes 1 & 2) Control Signal. T his pin may be configured to output (Mas-
ter Mode) or accept (Slave Mode) Sync signals.
Dual Function FIELD (Mode 1) and
VSYNC
(Mode 2) Control Signal. T his pin may
be configured to output (Master Mode) or accept (Slave Mode) these control signals.
Video Blanking Control Signal. T he pixel inputs are ignored when this is logic level
“0.” T his signal is optional.
T his pin can be configured as an input by setting MR22 and MR21 of Mode
Register 2. It can be configured as a subcarrier reset pin, in which case a high to low
transition on this pin will reset the subcarrier to field 0. Alternatively it may be con-
figured as a Real T ime Control (RT C) input.
Voltage Reference Input for DACs or Voltage Reference Output (1.2 V).
A 150
resistor connected from this pin to GND is used to control full-scale ampli-
tudes of the video signals.
Compensation Pin. Connect a 0.1
μ
F capacitor from COMP to V
AA
.
PAL/NT SC Composite Video Output. Full-Scale Output is 180IRE (1286 mV) for
NT SC and 1300 mV for PAL.
RED/S-VHS C/V Analog Output.
GREEN/S-VHS Y/Y Analog Output.
BLUE/Composite/U Analog Output.
MPU Port Serial Interface Clock Input.
MPU Port Serial Data Input/Output.
T T L Address Input. T his signal set up the LSB of the MPU address.
T he input resets the on chip timing generator and sets the ADV7175/ADV7176 into
default mode. T his is NT SC operation, T iming Slave Mode 0, 8-bit operation, 2
×
composite & S VHS out.
+5 V Supply.
Ground Pin.
CLOCK
I
HSYNC
I/O
FIELD/
VSYNC
I/O
BLANK
I/O
SCRESET /RT C
I
V
REF
R
SET
I/O
I
COMP
COMPOSIT E
O
O
RED/CHROMA/V
GREEN/LUMA/Y
BLUE/COMPOSIT E/U
SCLOCK
SDAT A
ALSB
RESET
O
O
O
I
I/O
I
I
V
AA
GND
P
G
PIN CONFIGURAT ION
12 13 14 15 16 17
18 19 20 21 22
A
3
4
5
6
7
1
2
10
11
8
9
40
39 38
41
42
43
44
36
35 34
37
29
30
31
32
27
28
25
26
23
24
33
PIN 1
TOP VIEW
(Not to Scale)
V
REF
COMPOSITE
BLUE/COMPOSITE/U
V
AA
GND
V
AA
GREEN/LUMA/Y
B
P
F
V
V
AA
P5
P6
P7
P8
P9
P10
P11
P12
GND
V
AA
RED/CHROMA/V
COMP
SDATA
SCLOCK
G
V
A
G
R
C
G
P
P
P
P
P
V
A
G
S
R
R
S
ADV7175/ADV7176
PQFP
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