- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358761 > LC74723 (Sanyo Electric Co.,Ltd.) On-Screen Display Controller PDF資料下載
參數(shù)資料
| 型號： | LC74723 |
| 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)： | 2/12頁 |
| 文件大?。?/td> | 144K |
| 代理商： | LC74723 |
Pin Assignment
Pin Functions
No. 4841-2/12
LC74723, 74723M
Pin No.
Symbol
Function
Description
1
V
SS
1
Xtal
IN
Xtal
OUT
Ground
Ground (digital system ground)
2
Crystal oscillator connection
Used either for connecting the external crystal and capacitor that are used for internal
synchronization signal generation, or to input an external clock signal (2f
sc
or 4f
sc
).
Switches the LC74723 between external clock input mode and crystal oscillator mode.
Low = crystal oscillator mode, high = external clock mode
3
4
CTRL1
Crystal oscillator input switching
5
CSYN
OUT
Composite synchronization
signal output
Outputs a composite synchronization signal. Outputs the crystal oscillator clock on
reset, i.e., when RST is low.
6
OSC
IN
OSC
OUT
LC oscillator
Connections for the coil and capacitor that form the oscillator used to generate the
character output dot clock.
7
Outputs the result of judging whether or not there is an external synchronization
signal. Outputs a high level when an external synchronization signal is present.
Outputs the dot clock (LC oscillator) on reset, i.e., when RST is low. (The LC74723
can be set not to output this signal on reset using control data.)
8
SYNC
JDG
External synchronization signal
judgment output
9
CS
Enable input
Enables serial data input. Serial data input is enabled when this input is low. There is
a built-in pull-up resistor on this input (hysteresis input).
10
SCLK
Clock input
Inputs the clock signal used for serial data input.
There is a built-in pull-up resistor on this input (hysteresis input).
11
SIN
Data input
Serial data input. There is a built-in pull-up resistor on this input (hysteresis input).
12
V
DD
2
Power supply
Power supply (analog system power supply) for composite video signal level
adjustment.
13
CV
OUT
NC
Video signal output
Composite video signal output
14
Must be either connected to ground or left open.
15
CV
IN
V
DD
1
Video signal input
Composite video signal input
16
Power supply
Power supply (+5 V: digital system power supply)
Video signal input for the built-in sync separator circuit (When the built-in sync
separator circuit is not used, input either the horizontal synchronization signal or the
composite synchronization signal.)
17
SYN
IN
Sync separator circuit input
18
SEP
C
Sync separator circuit bias voltage
Built-in sync separator circuit bias voltage monitor
19
SEP
OUT
Composite synchronization
signal output
Outputs the built-in sync separator circuit's composite synchronization signal.
(Outputs the SYN
IN
input signal when the built-in sync separator circuit is not used.)
Inputs the vertical synchronization signal by integrating the output signal from the
SEP
OUT
pin.
An integration circuit must be connected between the SEP
OUT
pin and this pin. Hold
at V
DD
1 if this input is unused.
20
SEP
IN
Vertical synchronization signal input
Continued on next page.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC74725 | On-Screen Display Controller LSI |
| LC74725M | On-Screen Display Controller LSI |
| LC7472 | On-screen Video Display Controller for NTSC or PAL-M |
| LC7472M | On-screen Video Display Controller for NTSC or PAL-M |
| LC74730M | On-Screen Display Controller LSI |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC74723M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
| LC74723M9141 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC74723M9629 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC74725 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
| LC74725M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。