參數(shù)資料
型號： TB1262F
廠商： Toshiba Corporation
英文描述： TOSHIBA BiCMOS INTEGRATED CIRCUIT, SILICON MONOLITHIC
中文描述： 東芝的BiCMOS集成電路，硅單片
文件頁數(shù)： 50/66頁
文件大小： 1544K
代理商： TB1262F
TB1261F/TB1262F
2002-6-30 50 / 66
Note
T15
Items/Symbols
Cross Talk from TV
to Analog RGB
/ CT
TV-TX
Bus
conditions
RGB Mute:0
R cut off:128
DC rest.:2(100%)
Ysm Mode:1
Uni-color:127
RGB contrast:63
Others: Preset
Measurement methods
(1) Input
amplitude=0.5V(p-p)) with sync into Pin61.
(2) Connect Pin21, 22 and 23 to GND via a 0.1uF capacitor.
(3) Supply 2.5V to Pin20.
(4) Measure the amplitude at Pin14, that is V
TX
.
(5) Supply 0V to Pin20.
(6) Measure the amplitude of 4MHz signal at Pin14, that is
V
TV
.
(7) Calculate; "CT
TV-TX
"=20*log(V
TX
/ V
TV
)
(1) Input a 0IRE signal with sync into Pin61.
(2) Connect Pin21, 22 and 23 to GND via 0.01
μ
F.
(3) Measure the DC level of picture period at Pin12, 13 and 14,
that is R
Y
/G
Y
/B
Y.
(4) Supply Pin15 to 2.5V.
(5) Measure the DC level of picture period at Pin12, 13 and 14,
that is R
T
/G
T
/B
T.
(6) Calculate;
Δ
R
＝
R
T
－
R
Y
Δ
G
＝
G
T
－
G
Y
Δ
B
＝
B
T
－
B
Y
“
Δ
V
R-G
”
＝
Δ
R
－
Δ
G
“
Δ
V
G-B
”
＝
Δ
G
－
Δ
B
“
Δ
V
B-R
”
＝
Δ
B
－
Δ
R
(1) Input a 0IRE signal with sync into Pin61.
(2) Set the IICBUS switch of RGBMUTE to 1
(3) Connect Pin21, 22 and 23 to GND via 0.01
μ
F.
(4) Measure the DC level of picture period at Pin 14, that is
V
RGBMUTE
(5) Reset RGBMUTE to 0 and set Blueback to 1
(6) Measure the DC level of picture period at Pin 14, that is V
BB
(1) Input a 100(IRE) (=0.7Vp-p) white signal with sync into
Pin61.
(2) Measure the output picture amplitude at Pin14 that is
V
HTYOFF
.
(3) Supply Pin20 1.5V.
(4) Measure the output picture amplitude at Pin14 that is
V
HTYON
.
Calculate;"G
HTY
"=20*log(V
HTYON
/V
HTYOFF
)
(1) Input a 4.43MHz PAL rainbow color-bar(300mV(p-p),
burst:chroma=1:1) with sync into Pin61. .
(2) Supply Pin15 1.5V and measure the amplitude of Pin14
output, that is V
PBHTC
.
(3) Calculate; (V
PBOUT
:see C7)
"G
HTC
"=20*log(V
PBHTC
/V
PBOUT
)
a
sine
wave
signal
(f=4MHz,
Video
T17
Analog RGB
／
RGB
Output Voltage Axes
Difference
／Δ
V
R-G
／Δ
V
G-B
／Δ
V
B-R
RGB Mute:0
R/G/B cut off:128
Brightness:63
DC rest.:2(100%)
Color:0
Uni-color:127
Others: Preset
T18
RGB Mute DC level
V
RGBMUTE
RGB Mute:0/1
R/G/B cut off:128
Brightness:63
DC rest.:2(100%)
Color:0
Uni-color:127
Others: Preset
UV6
Half Tone
Characteristics for Y
/ G
HTY
Ysm Mode:0
Uni-Color:127
Color:0
RGB Mute:0
R cut off:128
DC rest.:2(100%)
Others: Preset
UV7
Half Tone
Characteristics for C
/ G
HTC
RGB Mute:0
Y Mute:1
Uni-Color:127
Others: Preset
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