TA1276AN Datasheet, PDF (5/86 Pages) Toshiba Semiconductor – TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC

PIN
No.
PIN NAME
FUNCTION
Outputs R-Y (V) or Q signal.It
includes LPF that can remove carrier.
6
V / I output
The chroma signal that routed ACC
and TOF circuits (before demo input)
can be monitored by pulling up this
pin at 10kΩ.
7
1H DL
control
Outputs the result of whether the
signal is PAL, SECAM or NTSC.
Connect the output to the 1H DL IC.
In the case of discrimination between
white or black, the voltage just before
that is retained.
The voltage immediately after
turning-on is not fixed.
8 4.43MHz
X’tal
Connect X’tal. In the case of series
capacity, the oscillation frequency (f₀)
9 M PAL X’tal can be changed. In the case of
10 3.58MHz
X’tal
parallel capacity, the changeable
range of frequency can be changed.
INTERFACE CIRCUIT
TA1276AN
INPUT /
OUTPUT
SIGNAL
DC
2.5V
Rainbow
color bar
: 360mV_p-p
8.4V: PAL
4.3V: SECAM
0V: NTSC
DC
4.0V
90mV_p-p
Connect APC filter demodulating the
11 APC filter
chroma. The oscillation frequency of
VCXO varies depending on the
DC
voltage at this pin.
The V_CC of the chroma and I²C Bus
12 V_CC1 (5V) blocks.
―
―
Connect 5V (Typ.)
5
2002-03-29