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TB1227CNG Datasheet(PDF) 53 Page - Toshiba Semiconductor

Part No. TB1227CNG
Description  VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC / SECAM SYSTEM COLOR TV
Download  94 Pages
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Maker  TOSHIBA [Toshiba Semiconductor]
Homepage  http://www.semicon.toshiba.co.jp/eng
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TB1227CNG Datasheet(HTML) 53 Page - Toshiba Semiconductor

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TB1227CNG
2004-05-24
53
TEST CONDITION (Unless otherwise specified : H, RGB VCC = 9V ; VDD, Fsc VDD, Y / C VCC = 5V ; Ta = 25±3°C)
BUS : TEST MODE
BUS : NORMAL CONTROL MODE
S
02H
07H
10H
NOTE
ITEM
26
D5 D2 D1
D0 D7 D4 D3 D5 D4 D3 D2 D1 D0
OTHER CONDITION
MEASURING METHOD
C18
16.2MHz Oscillation
Frequency
ON
0
0
0
1
0
0
0
0
0
0
0
0
0
(1) Input nothing to pin 42.
(2) Measure frequency of CW signal of pin 35 as fr, and find
oscillation frequency by the following equation.
∆foF = (fr − 0.05MHz)×4
C19
16.2MHz Oscillation
Start Voltage
ON
0
0
0
1
0
0
0
0
0
0
0
0
0
Impress pin 38
individually with
separate power supply.
While raising voltage of pin 38, measure voltage when
oscillation waveform appears at pin 40.
C20
fsc Free-Run
Frequency
ON
0
0
0
1
0
0
0
0
Variable
0
0
(1) Input nothing to pin 42.
(2) Change setting of SUB (10H) D4, D3 and D2 according to
respective frequency modes, and measure frequency of
CW signal of pin 35.
Detail of D4, D3 and D2
3.58M = 1 : (001), 4.43M = 2 : (010)
M-PAL = 6 : (110), N-PAL = 7 : (111)
C21
fsc Output Amplitude
OFF
0
0
0
0
0
0
0
0
0
1
0
1
0
00
(1) Input nothing to pin 42.
(2) Change setting of SUB (10H) D4, D3 and D2 according to
respective frequency modes.Measure the amplitude of
output signal of pin 27.


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