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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)： | 19/58頁 |
| 文件大小： | 551K |
| 代理商： | TB1254N |
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Ver3.7
00/01/28
19
READ MODE
item
POR
bits
1
Description
Power on reset
0: normal
IF lock detection
0: Lock out
Horizontal lock detection
0: Lock out
IF AGC gain detection
0: High IF AGC gain
Monitoring the IF AGC level to detect if the IF input level is weak or
not.
( The threshold level is around 50 ~ 60 dB
Vertical Frequency
0: 50 Hz
1: 60 Hz
Present color system status
000: B / W
001: 4.43 PAL
010: M-PAL
011: N-PAL
100: 358 NTSC
101: 443 NTSC
110: SECAM
111: N/A
Y in for self diagnostic
0: no signal
1: detected
RGB OUT for self diagnostic
0: no signal
1: detected
H OUT for self diagnostic
0: detected 1: no signal
V OUT for self diagnostic
0: detected 1: no signal
Turn to 1 while the PIFVCO
0: normal
1: PIF VCO adjusting
V Lock for self diagnostic
0: Lock out
1: detected
AFT status
00: Lock OUT
01: too high
10: too low
11: Good
Detecting if the H sync. pulses are or are not.
0: no signal
1: detected
The DC voltage on C input terminal. It is for detecting the S-jack
swith.
0: open
1: Low
000: TB1258
001: TB1251
010: TB1252
011: TB1253
100: TB1254
101: TB1255
110: TB1256
111: TB1257
0: normal
1: overflowed
0: normal
1: not warm up
0: active
1: finished
0: non-standard V freq.
1: Standard V freq.
0: detected
1: not identified
0: detected
1: not identified
0: detected
1: not identified
1: normal
0: Large noise level
0: normal
1:error detect
0: OK
1:NG
preset
1: Resister Preset
IF Lock Det
1
1: Lock in
H Lock Det
1
1: Lock in
IF level
1
1: Low IF AGC gain
V Freq
1
Color System
3
Y-in
1
RGB OUT
1
H OUT
1
V OUT
1
PIF VCO Adj.
V Lock
1
AFT
2
Sync Det
1
C-in DC
1
Product code
3
AKB Overflow
CRT Warm up
AKB Finish
STD/Non -Std
P-ID
N-ID
S ID
Noise det
PIF VCO error detect
Coil error
1
1
1
1
1
1
1
1
1
1
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