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)： 44/58頁
文件大?。?/td> 551K
代理商： TB1254N
Ver3.7
00/01/28
44
Note
SE9
Items/Symbols
Linearity
/ LinB
/ LinR
Bus conditoins
RGB Mute:00
Uni-Color:63
Y Mute:1
Others:preset
Measurement methods
(1) Input a 75% color bar(200mVp-p at R ID) into Pin43.
(2) Set BUS data so that “S black monitor” is “alignment”.
(2) Measure the amplitude between Black and Cyan/Red, that is
VCyan/VRed.
(3) Measure the amplitude between Black and Yellow/Blue, that is
VYellow/VBlue.
(4) Calculate : "LinR"=VCync/VRed
"LinB"=VYellow/VBlue
red
LinR
LinB
cyan
blue
yellow
SE10
Rising-Fall Time
/ trfB
/ trfR
RGB Mute:00
Uni-Color:63
Y Mute:1
Others:preset
(1) Input a 75% color bar(200mVp-p at R ID) into Pin43.
(2) Set BUS data so that “S black monitor” is “alignment”.
(3) Measure the rising time(from 10% to 90%) between Green and
Magenta at Pin 20/Pin 22, that is "trR"/"trB".
Magenta
Green
10%
90%
trBCtrR
SE11
SECAM ID Sensitivity
(Normal Mode)
/ V
SIDHON
/ V
SIDHOFF
/ V
SIDHVON
/ V
SIDHVOFF
SECAM ID Sensitivity
(Low Mode)
/ V
SIDLHON
/ V
SIDLHOFF
/ V
SIDLHVON
/ V
SIDLHVOFF
Gate
Variable Range
/ WGP
+200
/ WGP
/ WGP
-200
RGB Mute:00
Y Mute:1
S ID Sens:0/1
S ID Mode:0/1
Color
System:101
Others:Preset
(1) nput a 75% color bar(200mVp-p at R ID) into Pin43.
(2) Set BUS data so that “S ID Sens” is Normal, “S ID Mode” is H.
(3) Measure the burst amplitude at which Pin13 DC level changes
from low to high / from high to low, that is "V
SIDHON
" / "V
SIDHOFF
".
(4) Set BUS data so that “S ID Mode” is H+V.
(5) Repeat (3), that is "V
SIDHVON
" / "V
SIDHVOFF
".
(6) Set BUS data so that “S ID Sens” is Low, “S ID Mode” is H.
(7) Repeat (3), that is "V
SIDLHON
" / "V
SIDLHOFF
".
(8) Set BUS data so that “S ID Mode” is H+V.
(9) Repeat (3), that is "V
SIDLHVON
" / "V
SIDLHVOFF
".
SE12
Pulse
Width
RGB Mute:00
TEST Mode:
00001000
Sub Add.”0A”:
X1001XXX
Color
System:101
Others:Preset
RGB Mute:00
Color
System:101
S black Monitor:1
S B-Y black Adj.:
0/15
S R-Y black Adj.:
0/15
Others:Preset
(1) nput a 75% color bar(200mVp-p at R ID) into Pin43.
(2) Set BUS data so that “TEST Mode” is 00001000 , Sub address
“0A” is X1001XXX , and“Color System” is Fixed SECAM.
(3) Measure the gate pulse widths when BUS data of “SECAM GP
Phase” is +200ns / normal / -200ns, those are “WGP
+200
”,
“WGP” and “WGP
-200
”.
S13
SECAM black
adjustment
characteristic
/ V
SBMAX
/ V
SRMAX
/ V
SRMIN
/ V
SRMIN
SECAM black
adjustment sensitivity
/
V
SB
/
V
SR
(1)For B-Y/R-Y Black Adj.:8, measure the DC level of picture period
at Pin22/20, that is VSBCEN / VSRCEN.
(3)For B-Y Black Adj.:0/15, measure the DC level change of picture
period against VSBCEN at Pin22, that is "VSBMIN" / "VSBMAX".
(4)For R-Y Black Adj.:0/15, measure the DC level change of picture
period against VSRCEN at Pin20, that is "VSRMIN" / "VSRMAX".
(5)Calculate;
"
VSECB"=(VSBMAX-VSBMIN)/16
"
VSECR"=(VSECRMAX-VSECRMIN)/16
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