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參數(shù)資料
| 型號： | TB1261F |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 40/66頁 |
| 文件大?。?/td> | 1538K |
| 代理商： | TB1261F |
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TB1261F/TB1262F
2002-6-30 45 / 66
Note
Items/Symbols
Bus
Bus conditions
conditions
Measurement methods
Y6
Black
Expansion
Start Point
/ VBLEX25
/ VBLEX35
/ VBLEX45
Black
Expansion
AMP Gain
/ GBLEX
Uni-Color:127
Color:0
Black stretch:
0/1/2/3
RGB Mute:0
R cut off:128
DC rest.:2(100%)
Others: Preset
(1)Input a gray raster with sync to Pin61.
(2)Set black stretch to 25(IRE).
(3)Decreasing Y amplitude of input from 50(IRE), measure a Y
amplitude as the figure below, that is “VBLEX25”
(4)Set black stretch to 35(IRE)/45(IRE).
(5)Repeat (3), that is ‘VBLEX35”, “VBLEX45”.
(6)Find gain of the portion that the black stretch has an effect
on.
Black
stretch
=off
25/35/45IRE
#61 input
#14
output
V BLEX25
Y7
DC
Restoration
Gain
/ VDcrest120
/ VDcrest90
/ VDcrest step
Uni-Color:127
Color:0
DC rest.: 0/1/2/3
RGB Mute:0
R cut off:128
Others: Preset
(1) Input a 100(IRE)(=0.7Vp-p) white signal with sync into
Pin38&39.
(2) Set DC rest. to 10.
(3) Measure a Y amplitude of pin20 output that is V100.
(4) Set DC rest to 00.
(5) Measure a Y amplitude of pin20 output that is V120.
(6) Calculate, “Vdcrest120” =(V120/V100)×100
(7) Set DC rest to 11.
(8) Repeat (5)&(6), that is “VDcrest90”.
(9) Calculate, “VDcrest step”=(Vdcrest120 - VDcrest90)/4
Y8
WPS Level
/ VWPS
Uni-Color:127
Brightness:63
Color:0
RGB Mute:0
R cut off:128
DC rest.:2(100%)
WPS:0/1
Others: Preset
(1) Input a 120(IRE) ramp signal with sync into Pin61.
(2) Measure the DC voltage from cut-off level to peak(at which
output signal is clipped) that is "VWPS".
Y9
VSM Peak
Frequency
/FVSM
RGB Mute:0
VSM gain:3
Others: Preset
(1) Input 100mV(p-p) sweep signal to pin61(Y in).
(2) Measure the peak point frequency “FVSM” at pin18(VSM
OUT) by using a spectrum analyzer.
Y10
VSM Gain
/ GVSM 0
/ GVSM -3
/ GVSM -10
/ GVSMOFF
RGB Mute:0
c-trap=off
VSM gain:
0/1/2/3
Others: Preset
(1) Input 100mV(p-p) FVSM
sine wave signal (see Y9) to
pin61(Y in).
(2) Set VSM Gain (0/1/2/3) and measure the amplitude at
pin18(VM OUT),that is “VVM0 “/ “VVM-3 “/ “VVM-10 “/
“VVM-OFF“.
(3) Calculate,
GVSM 0=20*log(VVM0/0.1)
GVSM-3=20*log(VVM-3/0.1)
GVSM-10=20*log(VVM-10/0.1)
GVSMOFF=20*log(VVM-off/0.1)
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