參數(shù)資料
型號(hào)： TB1254N
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDIP56
封裝： 0.600 INCH, PLASTIC, SDIP-56
文件頁數(shù)： 36/58頁
文件大?。?/td> 526K
代理商： TB1254N
Ver3.7
00/01/28 41
Note
Items/Symbols
Bus conditoins
Measurement methods
C7
Relative Amplitude
(PAL)
/ VPR/B
/ VPG/B
Relative Amplitude
(NTSC1)
/ VN1R/B
/ VN1G/B
Relative Amplitude
(NTSC2)
/ VN2R/B
/ VN2G/B
Relative Amplitude
(DVD)
/ VDR/B
/ VDG/B
RGB Mute:0
Y Mute:1
Uni-Color:127
Others:Preset
(1)Input a 4.43MHz PAL rainbow color-bar(300mVp-p,
burst:chroma=1:1) with sync into Pin38&43.
(2)Measure the amplitude of Pin18/19/20 output, that is
"VPROUT"/ "VPGOUT" / "VPBOUT"
(3)Calculate; " VPR/B "=VPROUT/VPBOUT
" VPG/B "=VPGOUT/VPBOUT
(4)Input a 3.58MHz NTSC rainbow color-bar (286mVp-p,
burst:chroma=1:1) with sync into Pin38&43.
(5)Set NTSC Phase to NTSC1/NTSC2.
(6)Repeat (2)&(3), that is “VN1R/B”/” VN1G/B”/” VN2R/B”/” VN2G/B”.
C8
Relative Phase (PAL)
/
PR-B
/
PG-B
Relative Phase
(NTSC1)
/
N1R-B
/
N1G-B
Relative Phase
(NTSC2)
/
N2R-B
/
N2G-B
Relative Phase (DVD)
/
DR-B
/
DG-B
RGB Mute:0
Y Mute:01
Uni-Color:127
NTSC Phase:
00/01/10
Others:Preset
(1)Input a 4.43MHz PAL rainbow color-bar(300mVp-p,
burst:chroma=1:1) with sync into Pin38&43.
(2)Observe the Pin18/19/20 output, measure the R/G/B modulation
angle (
PR/PG/PB) accoeding following figure and equality.
For
PR ; Peak:3rd bar, 0R=90
For
PG ; Peak(nagative):4th bar, 0G=240
For
PB ; Peak:6th bar, 0B=0
Calculate; "
PR-B"=PR-PB
"
PG-B"=PG-PB
(4)Set NTSC Phase 00(NTSC1).
(5)Input a 3.58MHz NTSC rainbow color-bar (286mVp-p,
burst:chroma=1:1) with sync into Pin38&43, then repeat (2), that is
N1R /N1G /N1B.
(6)Calculate; "
N1R-B"=N1R-N1B
"
N1G-B"=N1G-N1B
(7)Set NTSC Phase 01(NTSC2).
(8) Repeat (5), that is
N2R /N2G /N2B.
(9)Calculate; "
N2R-B"=N2R-N2B
"
N1G-B"=N1G-N1B
(10)Set NTSC Phase 10(DVD).
C9
APC Pull-in Range
(4.43MHz)
/
F4APCP+
/
F4APCP-
APC Hold Range
(4.43MHz)
/
F4APCH+
/
F4APCH-
APC Pull-in Range
(3.58MHz)
/
F3APCP+
/
F3APCP-
APC Hold Range
(3.58MHz)
/
F3APCH+
/
F3APCH-
RGB Mute:0
Color System:
100/010
Others:Preset
(1)Input a 4.43MHz PAL rainbow color-bar(300mVp-p,
burst:chroma=1:1) with sync into Pin38&43.
(2)Set Color System to 100(443PAL).
(3)For higher frequency than 4.43MHz, measure the burst
frequency at which Pin13 DC level changes from low to high / from
high to low, that is F4APCP+ / F4APCH+.
(4)For lower frequency than 4.43MHz, repeat (2), that is F4APCP- /
F4APCH-.
(5)Calculate; "
F4APCP+"=F4APCP+-4433619
"
F4APCP-"=4433619-F4APCP-
"
F4APCH+"=F4APCH+-4433619
"
F4APCH-"=4433619-F4APCH-
(6)Input a 3.58MHz NTSC rainbow color-bar (286mVp-p,
burst:chroma=1:1) with sync into Pin38&43.
(7)Set Color System to 010(358NTSC).
(8)For higher frequency than 3.58MHz, repeat (2), that is F3APCP+ /
F3APCH+.
(9)For lower frequency than 3.58MHz, repeat (2), that is F3APCP- /
F3APCH-.
(10)Calculate; "
F3APCP+"=F3APCP+-3579545
"
F3APCP-"=3579545-F3APCP-
"
F3APCH+"=F3APCH+-3579545
"
F3APCH-"=3579545-F3APCH-
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