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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 4/58頁(yè) |
| 文件大?。?/td> | 551K |
| 代理商： | TB1254N |
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Ver3.7
00/01/28
4
PIN NAME
FUNCTION
INTERFACE
9
RF AGC
An output terminal for RF AGC.
A pull up resister is required because of its
open collector output, and also connect de-
coupling capacitor to reduce noises,.
9
5
14
9V
300
30k
30k
to SELF ADJ
10
IF AGC
A terminal to be connected to an IF AGC
filter. Connect 2.2
F of capacitor to Vcc
10
5
1
2k
11
APC FILTER
A terminal to be connected with an APC filter
for chroma demodulation.
This terminal voltage controls the frequency
of VCXO.
11
19
42
220
110k
3.2V
12
X’TAL
(4.43MHZ)
A
4.433619MHz X’tal oscillator. The oscillated
signal lead to chroma demodulation, H out
frequency tuning, AFT and so on.
terminal
to
be
connected
with
a
12
19
42
500
2.5k
13
CW OUT
An output terminal for the continuous chroma
sub-carrier frequency wave, which amplitude
is 0.7Vp-p (typ).
Also the dc level shows killer status, the level
is 1.5V for B/W and 3.5V for Color.
13
19
42
200
1k
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