參數(shù)資料
型號： LC74731W
廠商： Sanyo Electric Co.,Ltd.
英文描述： On-Screen Display Controller
中文描述： 屏幕顯示控制器
文件頁數(shù)： 3/38頁
文件大?。?/td> 157K
代理商： LC74731W
No. 6526-3/38
LC74731W,74732W
Pin Functions
Pin No.
Pin
Function
Description
1
V
SS
1
Xtalin
Ground
Ground connection. (Digital system ground)
2
Crystal oscillator connections
Connections for the crystal element and capacitors that form the internal sync signal generating
crystal oscillator. Xtalin can also be used to input an external clock signal. (2fsc or 4fsc)
3
Xtalout
4
CTRL1
Switches the crystal oscillator Selects external clock input mode or crystal oscillator mode. Low: crystal oscillator mode, high:
input
external clock input mode.
5
OSCin
LC oscillator connections
Connections for the coil and capacitor that form the character output dot clock generation oscillator.
6
OSCout
This is an active-low input with hysteresis characteristics (MORE+).
When low, the
CVout, Yout, and Cout outputs are set to either,
(1)
CSYNC,
CSYNC,
(2)
PE
PE,
In the initial state, (1) is selected. This setting is switched by commands.
7
MUTE
Muting control input
PE, or
PE.
8
CDLR
Background color phase
adjustment
Connection for the resistor used to adjust the background color phase
Outputs the result of the judgment as to whether or not the external sync signal is present.
External sync signal judgment A high level is output when a sync signal is present.
output (Rout output)
The dot clock (LC oscillator) is output when RST is low.
(The IC can be set up to not output this signal during resets by commands.)
9
SYNCJDG
/Rout
10
CHARA/Gout
Character output
(Gout output)
Character signal output
11
BLANK/Bout
Blank output (Bout output)
Blank signal output pin
12
IEout/BLKout
Internal/external output
(BLKout output)
Internal synchronization (high)/external synchronization (low) state output pin
13
OUTMOD
Output switching input
Switches between output from pins 9 to 12 and input to pin 32.
Low: normal operation, high: RGB output supported
Serial data input enable
Serial data input is enabled when low.
more+ (Hysteresis input characteristics)
14
CS
Enable input
15
SIN
Data input
Serial data input
more+ (Hysteresis input characteristics)
16
SCLK
Clock input
Serial data input clock input
more+ (Hysteresis input characteristics)
17
V
DD
2
COUT
Power supply
Composite video signal level adjustment power supply. (Analog system power supply)
18
Color signal output
Color (C) signal output
19
NC
This pin must either be left open or connected to ground.
20
CIN
Color signal input
Color (C) signal input
21
CBIAS
Chrominance bias output
Chrominance signal bias level output
22
NC
This pin must be either left open or connected to ground.
23
YOUT
Luminance signal output
Luminance signal (Y) output
24
NC
This pin must be either left open or connected to ground.
25
YIN
Luminance signal input
Luminance signal (Y) input
26
V
SS
2
CVOUT
Ground
Ground
27
Video signal output
Composite video signal output
28
NC
This pin must either be left open or connected to ground.
29
CVIN
Video signal input
Composite video signal input
30
CVCR
Video signal input
SECAM chrominance signal input
31
HFTin
Halftone signal input
Halftone signal input
32
SYNin
Sync separator circuit input
Video signal input to the internal sync separator circuit
33
SEPout
Composite sync signal output Composite sync signal output from the internal sync separator circuit
34
SEPin
Vertical sync signal input
Vertical sync signal input
MORE+ (Hysteresis input characteristics)
35
RST
Reset input
System reset input
A built-in pull-up resistor can be included in this pin’s input circuit. (Hysteresis input characteristics)
36
V
DD
1
Power supply (+5 V)
Power supply (+5 V: digital system power supply)
Continued on next page.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC74731W_11 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller
LC74731W-9818-E 功能描述:顯示驅(qū)動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel
LC74731WS-9818-E 功能描述:顯示驅(qū)動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel
LC74732W 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller
LC74732W-9811 制造商:SANYO Semiconductor Co Ltd 功能描述:
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