參數(shù)資料
型號(hào)： TB1227BN
廠商： Toshiba Corporation
英文描述： VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL/NTSC/SECAM SYSTEM COLOR TV
中文描述： 視頻，色度和同步信號(hào)處理集成電路的PAL / NTSC制式/ SECAM制式彩電
文件頁數(shù)： 47/94頁
文件大小： 1292K
代理商： TB1227BN
TB1227CNG
2004-05-24
47
TEST CONDITION (Unless otherwise specified : H, RGB V
CC
= 9V ; V
DD
, Fsc V
DD
, Y / C V
CC
= 5V ; Ta = 25±3°C)
SW MODE
S
33
S
34
S
39
S
42
S
44
S
45
S
51
(1) Activate the test mode (S26-ON, Sub Add 02 ; 08h).
NOTE
ITEM
S
26
S
1
S
31
MEASURING METHOD
(2) Connect band pass filter (Q = 2), set crystal mode to conform to European, Asian
system and set the gate to normal status.
(3) Input 3N rainbow color bar signal (100mV
p-p
) to pin 42 (Chroma IN).
(4) Measure phase shift of B-Y color difference output of pin 36.
(5) While shifting color phase (tint) from minimum to maximum by the bus control, measure
phase change of B-Y color difference output of pin 36. On the condition that 6 bars in
the center have the peak level (regarded as center of color phase), the side of 5 bars is
regarded as positive direction while the side of 7 bars is regarded as negative direction
C
6
Tint Control
Sharing Range
(f
o
= 600kHz)
ON
A
B
B
B
A
A
A
A
B
when the 5 bars or the 7 bars are in the peak level.
Based on this assumption,open angle toward the
positive direction is expressed as
θ
1
and that
toward the negative direction is expressed as
θ
2
as
viewed from the phase center.
θ
1
and
θ
2
show
the tint control sharing range.
(6) Variable range is expressed by sum of
θ
1
sharing
range and
θ
2
sharing range.
θ
T
=
θ
1
+
θ
2
C
7
Tint Control
Variable Range
(f
o
= 600kHz)
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
(7) While shifting color phase from minimum to maximum with the bus control, measure
phase shift of B-Y color difference output of pin 36. When center 6 bars have peak level,
value of color phase bus step is expressed as
θ
Tin
.
(8) While shifting color phase from minimum to maximum with the bus control, measure
values of color phase bus step corresponding to 10% and 90% of absolutely variable
phase shift of B-Y color difference output of pin36.
The range of color phase shifted by the bus control is
expressed as While shifting color phase from
minimum to maximum with the bus control, measure
phase shift of B-Y color difference output of pin 36.
When center 6 bars have peak level, value of color
phase bus step is expressed as
Tin
(conforming to
TV mode, f
o
= 600kHz).
C
8
Tint Control
Characteristic
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
(9) Input 4N rainbow color bar signal to pin 42 (Chroma IN), and perform the same
measurement as the 3N signal.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TB1227CNG 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC / SECAM SYSTEM COLOR TV
TB1229DN 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL/NTSC SYSTEM COLOR TV
TB1230AN 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL/NTSC SYSTEM COLOR TV
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