參數(shù)資料
型號(hào)： TB1227CNG
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)： 45/94頁
文件大?。?/td> 1292K
代理商： TB1227CNG
TB1227CNG
2004-05-24
45
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 ; 01h).
NOTE
ITEM
S
26
S
1
S
31
MEASURING METHOD
C
3
Band Pass Filter,
3dB Band
Characteristic
ON
A
B
B
B
A
B
A
A
B
(2) Set as follows : band pass filter Q = 2, crystal clock = conforming to 3.579 / 4.43MHz.
(3) Set the gate to the normal status.
(4) Input 3N composite sine wave signal (1V
p-p
) to pin 42 (Chroma IN).
(5) Measure frequency characteristic of B-Y output of pin 36, and measure peak frequency
in the
3dB band.
(6) Changing f
o
to 0, 500, 600 and 700 by the bus control and measure peak frequencies in
the
3dB band respectively with different f
o
.
C
4
Band Pass Filter,
Q Characteristic
Check
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
(1) Activate the test mode (S26-ON, Sub Add 02 ; 01h).
(2) Set as follows : TV mode (f
o
= 600), Crystal mode = conforming to 3.579 / 4.43MHz,
gate = normal status.
(3) Input 3N composite sine wave signal (1V
p-p
) to pin 42 (Chroma IN).
(4) Measure frequency characteristic of B-Y output of pin 36, and measure peak frequency
in the
3dB band.
(5) Changing f
o
of the band pass filter to 0, 500, 600 and 700 by the bus control and
measure peak frequencies in the
3dB band respectively with different f
o
.
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