TB1254N 查看數據表（PDF） - Toshiba
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TB1254N Datasheet PDF : 58 Pages
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PIN NAME
FUNCTION
14 RGB VCC (9V) A Vcc terminal for RGB block, PIF det. Output
and sound output circuit.
Supply 9V.
15 YS/YM SW
A terminal for switching of EXT RGB Mode
•Spot killer
and fast Half tone.
INTERFACE
•
42
15
250Ħ
3.3V
0.7V
16 EXT. R IN
17 EXT. G IN
18 EXT. B IN
19 Y/C GND
20 R OUT
21 G OUT
22 B OUT
23 IK 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
16
output leval. This ABL/ACL is able to off.
OFF: for small area like OSD
17
ON: for large area like TELETEXT
18
(input level 0.7Vp-p/100IRE)
250Ħ
250Ħ
100uA
250Ħ
2.3V
The GND terminal for Y/C circuit.
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
100Ħ
21
22
An input terminal to sense AKB cathode
current.
VK
Connect this terminals to GND if not using
the AKB system.
1kĦ
23
limitter
over circuit
14
42
250Ħ
19
14
19
42
VF
soft
start
19
Ver3.7
00/01/28 5
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