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TB1227CNG Datasheet(PDF) 8 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) 8 Page - Toshiba Semiconductor

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TB1227CNG
2004-05-24
8
PIN
No.
PIN NAME
FUNCTION
INTERFACE CIRCUIT
INPUT / OUTPUT
SIGNAL
35
36
R-Y Output
B-Y Output
Output terminal of demodulated R-Y
or B-Y signal. There is an LPF for
removing carrier built in this pin.
DC
1.9V
AC
B-Y : 650mVp-p
R-Y : 510mVp-p
(with input of PAL-75%
color bar signal)
37 Y Output
Output terminal of processed Y
signal. Standard output level :
0.7Vp-p
38 Fsc VDD
VDD terminal of DDS block. Insert a
decoupling capacitor between this
pin and pin 32 (Fsc GND) at the
shortest distance from both. If
decouping capacitor is inserted at a
distance from the pins, it may cause
spurious deterioration.
39 Black Stretch
To connect filter for controlling black
expansion gain of the black
expansion circuit. Black expansion
gain is determined by voltage of this
pin.
DC
1.6V
40 16.2MHz X’tal
To connect 16.2MHz crystal clock
for generating sub-carrier.
Lowest resonance frequency (f0) of
the crystal oscillation can be varied
by changing DC capacity. Adjust f0
of the oscillation frequency with the
board pattern.
DC
4.1V


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