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PDF TA1276AN Data sheet ( Hoja de datos )
| Número de pieza | TA1276AN | |
| Descripción | TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TA1276AN
TENTATIVE TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA1276AN
PAL / NTSC VIDEO CHROMA AND DEFLECTION IC FOR CTV
(NORMAL SCAN / DOUBLE SCAN MODE)
TA1276AN provides Video, Chroma and Deflection (Sync, when
double scan mode) circuit for a PAL / NTSC Color TV, and
suitable for a high picture quality, large screen size, wide and / or
double scanning TV. These functions are integrated in a 56pin
dual-in-line shrink-type plastic package.
TA1276AN provides a high-performance video processor in which
a YUV double scanning signal can be applied in Video, PAL /
NTSC auto-detection circuit in Chroma and 50 / 60Hz
auto-detection circuit in Sync. PAL demodulation circuit includes
Baseband signal processing system. And this demodulation
circuit does not required any adjustment.
TA1276AN includes I2C bus interface, so you can adjust various
functions and controls via the bus.
Weight: 5.55g (Typ.)
1 2002-03-29
1 page  
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
: 360mVp-p
8.4V: PAL
4.3V: SECAM
0V: NTSC
DC
4.0V
90mVp-p
11 APC filter
Connect APC filter demodulating the
chroma. The oscillation frequency of
VCXO varies depending on the
voltage at this pin.
12 VCC1 (5V)
The VCC of the chroma and I2C Bus
blocks.
Connect 5V (Typ.)
―
DC
―
5 2002-03-29
5 Page 
PIN
No.
PIN NAME
46 VCC3 (9V)
FUNCTION
The VCC pin of picture quality and
color difference blocks.
Connect 9V (Typ.).
47 YM input
The half-tone switch for internal
RGB signal.
When the voltage at this pin is set to
7.0V or more, the RGB output
voltage.
INTERFACE CIRCUIT
―
TA1276AN
INPUT /
OUTPUT
SIGNAL
―
48 VSM output
Outputs the Y-signal that routed
HPF after it had been subjected to
DC restoration.
The output is muted with the
switches of pins 32 and 36.
DC
3.5V
Connect the filter correcting DC
restoration ratio.
49 APL detection Opening this pin can monitor the
Y-signal that was subjected to black
stretching.
DC
50
Black peak
hold
Connect the filter controlling the
black stretching gain of the black
stretching circuit.
The black stretching gain varies
depending on the voltage at this pin.
DC
11 2002-03-29
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TA1276AN.PDF ] | |
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