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PDF TA1276AFG Data sheet ( Hoja de datos )

Número de pieza TA1276AFG
Descripción PAL / NTSC Video Chroma and Deflection IC
Fabricantes Toshiba 
Logotipo Toshiba Logotipo



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No Preview Available ! TA1276AFG Hoja de datos, Descripción, Manual

TA1276AFG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA1276AFG
PAL/NTSC Video Chroma And Deflection IC For CTV
(normal scan/double scan mode)
TA1276AFG 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 80
pin QPF plastic package.
TA1276AFG 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 50/60 Hz
auto-detection circuit in Sync. PAL demodulation circuit includes
Baseband signal processing system. And this demodulation
circuit does not required any adjustment.
TA1276AFG includes I2C bus interface, so you can adjust
various functions and controls via the bus.
Features
Weight: 1.6 g (typ.)
Video/chroma section
Y delay line
Chroma trap
IQ demodulation for NTSC, UV demodulation for PAL
BEP (back end processor) section
Enable to process a YUV signal independently
Double scanning signal processing capability
(Y processing section)
Black stretcher (controlled by I2C bus)
DC restoration circuit (controlled by I2C bus)
Highbright-color circuit
D.L. aperture sharpness circuit + super real transcend circuit (LTI)
DŽ correction (enable to control binary line, gain/start point)
Y noise reduction circuit
Velocity scan modulation output (the first order differential output and phase/amplitude adjustment)
(color difference section)
Color detail enhancer
Selectable relative phase and amplitude
Flesh-color restoration
Color DŽ circuit
Baseband tint color
(text section)
RGB primary color output
On screen display interface
Linear RGB interface
Fast blanking
Drive control
AKB (only black level) or cut-off bus control
Deflection section
High performance sync. separation circuit
Adjustment free H and V oscillation circuit by countdown system
Horizontal and vertical position adjustment
Sync separation, HD output
Horizontal and vertical pulse output in normal mode.
1 2002-04-01

1 page




TA1276AFG pdf
Pin
No.
Pin Name
Function
6 YM input
The half-tone switch for
internal RGB signal.
When the voltage at this
pin is set to 7.0 V or more,
the RGB output voltage.
6
Interface Circuit
17
300
15 k
TA1276AFG
Input/Output
Signal
Soft AKB
7.0 V
Half Tone
0.75 V
TV
GND
The VCC pin of picture
7
VCC3 (9 V)
quality and color
difference blocks.
Connect 9 V (typ.).
Used to control the
external uni-color,
brightness, and dynamic
ABL.
8
ABCL input
Use this pin when using
ABL or ACL.
The sensitivity and starting
point of the ABL and
dynamic ABL can be set
by using bus.
8
5 k
17
9
TEXT GND The GND pin of TEXT
2 block.
10
TEXT GND
1
The GND pin of TEXT
block.
11 R output
13 G output
15 B output
Outputs RGB.
11
13
15
200
10 k
17
12 NC
None connect PIN.
These pins connect to
GND.
14 NC
None connect PIN.
These pins connect to
GND.
16 NC
None connect PIN.
These pins connect to
GND.
The VCC pin of the text
17 VCC2 (9 V) block.
Connect 9 V (typ.).
ABCL OFF:
6 V or more
100 IRE: 2.3 Vp-p
2.5 V
GND
At Cont max
BRT Cent.
5 2002-04-01

5 Page





TA1276AFG arduino
Pin
No.
Pin Name
Function
58 APC filter
Connect APC filter
demodulating the chroma.
The oscillation frequency
of VCXO varies depending
on the voltage at this pin.
58
Interface Circuit
1 k
3 k
57
TA1276AFG
Input/Output
Signal
DC
60 NC
None connect PIN.
These pins connect to
GND.
Connect X’tal. In the case
62 4.43 MHz of series capacity, the
X’tal oscillation frequency (f0)
61
M PAL X’tal
can be changed. In the
case of parallel capacity,
59 3.58 MHz the changeable range of
X’tal frequency can be
changed.
62
61
59
500
57
R
Pin 62 1.5 k
Pin 61 2.5 k
Pin 59 2.5 k
DC
4.0 V
90 mVp-p
63
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.
500
63
42
8.4 V: PAL
4.3 V: SECAM
0 V: NTSC
64 V/I output
Outputs R-Y (V) or Q
signal. It includes LPF that
can remove carrier.
The chroma signal that
routed ACC and TOF
circuits (before demo
input) can be monitored by
pulling up this pin at 10
k.
64
57
DC
2.5 V
Rainbow
color bar
: 360 mVp-p
11 2002-04-01

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