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)： 47/66頁
文件大?。?/td> 1544K
代理商： TB1262F
TB1261F/TB1262F
2002-6-30 47 / 66
Note
UV5
Items/Symbols
Relative Phase
(PAL1)
/
θ
PR-B
/
θ
PG-B
Relative Phase
(PAL2)
/
θ
N1R-B
/
θ
N1G-B
Relative Phase
(NTSC1)
/
θ
N2R-B
/
θ
N2G-B
Relative Phase
(NTSC2)
/
θ
DR-B
/
θ
DG-B
Bus
conditions
RGB Mute:0
Y Mute:1
Uni-Color:127
NTSC Phase:
0/1/2
Others: Preset
Measurement methods
(1) Input a 4.43MHz PAL rainbow color-bar(300mV(p-p),
burst:chroma=1:1) with sync into Pin61.
(2) Observe the Pin12/13/14 output, measure the R/G/B
modulation angle (
θ
PR
/
θ
PG
/
θ
PB
) according following figure
and formula.
θ
p*={
θ
o*- Arktag(1/(2A/B+sqrt(3))-15}
A
B
peak
For
θ
P1R
; Peak:3rd bar,
θ
0R
=90
For
θ
P1G
; Peak(negative):4th bar,
θ
0G
=240
For
θ
P1B
; Peak:6th bar,
θ
0B
=0
Calculate;
"
θ
P1R
-
B
"=
θ
P1R
-
θ
P1B
"
θ
P1G-B
"=
θ
P1G
-
θ
P1B
(3) Set ' Demo-P' to 01, 10 and 11, and acquire each PAL2,
NTSC1 and NTSC2 results with the same measurements.
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