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參數(shù)資料
| 型號(hào)： | TB1261F |
| 元件分類： | 消費(fèi)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(yè)數(shù)： | 38/66頁(yè) |
| 文件大?。?/td> | 1538K |
| 代理商： | TB1261F |
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TB1261F/TB1262F
2002-6-30 43 / 66
Note
Items/Symbols
Bus conditions
Measurement methods
C10
SECAM CbCr out
Relative Amplitude
/ R/B-S
(1)Calculate : "R/B-S"=VRS/VBS
C11
Color Difference S/N
Ratio
/ SNB-S
/ SBR-S
RGB Mute:0
Color System:5
Uni-Color:64
Y Mute:1
Others: preset
(1)Input a 200mV(p-p) non-modulated chroma signal into Pin61.
(2) Measure the amplitude of noise on Pin51, that is nR.
(3) Measure the amplitude of noise on Pin52, that is nB.
(4) Calculate : "SNB-S"=20log(2√2VBS/nB)
"SNR-S"=20log(2√2VRS/nR)
C12
SECAM
Linearity
/ LinB
/ LinR
Color System:5
Others: preset
(1)Input a 75% color bar(200mV(p-p) at R ID) into Pin61.
(2)Measure the amplitude between Black and Cyan/Red, that is
VCyan/VRed for pin #51.
(3)Measure the amplitude between Black and Yellow/Blue, that
is VYellow/VBlue for pin #52.
(4)Calculate :
"LinR"=VCync/Vred
"LinB"=VYellow/VBlue
LinR
LinB
red
cyan
blue
yellow
C13
Rising-Fall Time
/ trfB
/ trfR
Color System:5
Others: preset
(1)Input a 75% color bar(200mV(p-p) at R ID) into Pin61.
(2)Measure the rising time(from 10% to 90%) between Green
and Magenta at Pin 51/Pin 52, that is "trR"/"trB".
Magenta
Green
10%
90%
trB，trR
C14
SECAM ID
Sensitivity (Normal
Mode)
/ VSIDHON
/ VSIDHOFF
/ VSIDHVON
/ VSIDHVOFF
SECAM ID
Sensitivity (Low
Mode)
/ VSIDLHON
/ VSIDLHOFF
/ VSIDLHVON
/ VSIDLHVOFF
S ID Sens:0/1
S ID Mode:0/1
Color System:5
Others: Preset
(1) Input a 75% color bar(200mV(p-p) at R ID) into Pin61..
(2) Set BUS data so that “S ID Sens” is Normal, “S ID Mode”
is H.
(3) Measure the burst amplitude at which color killer turns on
and off, that is "VSIDHON" / "VSIDHOFF".
(4) Set BUS data so that “S ID Mode” is H+V.
(5) Repeat (3), that is "VSIDHVON" / "VSIDHVOFF".
(6) Set BUS data so that “S ID Sens” is Low, “S ID Mode” is H.
(7) Repeat (3), that is "VSIDLHON" / "VSIDLHOFF".
(8) Set BUS data so that “S ID Mode” is H+V.
(1) (9)Repeat (3), that is "VSIDLHVON" / "VSIDLHVOFF".
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