參數(shù)資料
型號： TB1254N
廠商： Toshiba Corporation
英文描述： PAL / NTSC / SECAM 1CHIP (IF+VCD PROCESSOR) IC
中文描述： PAL / NTSC制式/ SECAM制式1CHIP（中頻光碟處理器）芯片
文件頁數(shù)： 41/58頁
文件大?。?/td> 551K
代理商： TB1254N
Ver3.7
00/01/28
41
Note
C7
Items/Symbols
Relative Amplitude
(PAL)
/ V
PR/B
/ V
PG/B
Relative Amplitude
(NTSC1)
/ V
N1R/B
/ V
N1G/B
Relative Amplitude
(NTSC2)
/ V
N2R/B
/ V
N2G/B
Relative Amplitude
(DVD)
/ V
DR/B
/ V
DG/B
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
Bus conditoins
RGB Mute:0
Y Mute:1
Uni-Color:127
Others:Preset
Measurement methods
(1) nput 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; " V
PR/B
"=VPROUT/VPBOUT
" V
PG/B
"=VPGOUT/VPBOUT
(4) nput 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 “V
N1R/B
”/” V
N1G/B
”/” V
N2R/B
”/” V
N
2
G/B
”.
C8
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)
/
F
4APCP+
/
F
4APCP-
APC Hold Range
(4.43MHz)
/
F
4APCH+
/
F
4APCH-
APC Pull-in Range
(3.58MHz)
/
F
3APCP+
/
F
3APCP-
APC Hold Range
(3.58MHz)
/
F
3APCH+
/
F
3APCH-
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 F
4APCP+
/ F
4APCH+
.
(4)For lower frequency than 4.43MHz, repeat (2), that is F
4APCP-
/
F
4APCH-
.
(5)Calculate; "
F
4APCP+
"=F
4APCP+
-4433619
"
F
4APCP-
"=4433619-F
4APCP-
"
F
4APCH+
"=F
4APCH+
-4433619
"
F
4APCH-
"=4433619-F
4APCH-
(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 F
3APCP+
/
F
3APCH+
.
(9)For lower frequency than 3.58MHz, repeat (2), that is F
3APCP-
/
F
3APCH-
.
(10)Calculate; "
F
3APCP+
"=F
3APCP+
-3579545
"
F
3APCP-
"=3579545-F
3APCP-
"
F
3APCH+
"=F
3APCH+
-3579545
"
F
3APCH-
"=3579545-F
3APCH-
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