參數(shù)資料
型號: TB1254N
廠商: Toshiba Corporation
英文描述: PAL / NTSC / SECAM 1CHIP (IF+VCD PROCESSOR) IC
中文描述: PAL / NTSC制式/ SECAM制式1CHIP(中頻光碟處理器)芯片
文件頁數(shù): 5/58頁
文件大?。?/td> 551K
代理商: TB1254N
Ver3.7
00/01/28
5
PIN NAME
FUNCTION
INTERFACE
14
RGB VCC (9V)
A Vcc terminal for RGB block, PIF det. Output
and sound output circuit.
Supply 9V.
A terminal for switching of EXT RGB Mode
and fast Half tone.
15
YS/YM SW
Spot killer
15
14
42
3.3V
250
0.7V
16
17
18
EXT. R IN
EXT. G IN
EXT. B IN
Input terminals for EXT RGB signals. The
signals are clamped by capacitors, therefore
the input impedance should be low, 100
ohms or less is recommended.
For this input, brightness and RGB contrast
are available, also ABL/ACL eliminate the
output leval. This ABL/ACL is able to off.
OFF: for small area like OSD
ON: for large area like TELETEXT
(input level 0.7Vp-p/100IRE)
16
19
42
250
250
2.3V
17
18
250
250
100uA
19
Y/C GND
The GND terminal for Y/C circuit.
20
21
22
R OUT
G OUT
B OUT
Terminals for R/G/B signal output.
Connect resistances to GND, if through rate
is not enough. Because of source current
limitation, the resistances should be 2.0k
or
more.
20
19
14
100
21
22
23
IK IN
An input terminal to sense AKB cathode
current.
Connect this terminals to GND if not using
the AKB system.
23
19
42
2
2
5
2
2
5
1
1
VF
VK
1k
soft
start
limitter
over circuit
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