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PDF TA1287F Data sheet ( Hoja de datos )
| Número de pieza | TA1287F | |
| Descripción | RGB TO YUV / IQ HIGH-SPEED MATRIX IC | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TA1287F (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
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TA1287P,TA1287F
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA1287P,TA1287F
RGB TO YUV / IQ HIGH-SPEED MATRIX IC
TA1287P, TA1287F are a high-speed switching IC which have
2-channel inputs circuit and a RGB to YUV / IQ matrix circuit.
Another feature, TA1287P, TA1287F have a signals mixing circuit,
which are enable to mix a main signal with an external input
signal and outputs the mixed signal. The mixing circuit has 8
combinations of mixing gain ratio of a main to an external signals,
which is controlled by high-speed switch.
FEATURES
RGB to YUV / IQ matrix circuit
The mixing circuit for a main signal and an external signal
The high-speed switching circuit of a main signal an external
signal
Band Width : 30MHz at −3dB point.
Weight
DIP16-P-300-2.54A : 1.0 g (Typ.)
SSOP16-P-225-1.00A : 0.14 g (Typ.)
1 2001-07-17
1 page  
TA1287P,TA1287F
FUNCTION DESCRIPTION
MIXING RATIO
TA1287P, TA1287F have a circuit, which mixes a main signal with an external input signal and outputs the
mixed signal. The mixing circuit has 8 combinations of mixing gain ratio of a main to an external signals.
Table
YS1
L
H
L
H
L
H
L
H
The mixing ratio of external to main (TV)
YS2 YS3
THE MIXING RATIO
EXTERNAL
MAIN (TV)
LL
0
1
LL
0.3
0.7
HL
0.4
0.6
HL
0.5
0.5
LH
0.6
0.4
LH
0.7
0.3
HH
0.8
0.2
HH
1
0
MATRIX CONTROL
Pin 16 is a high-speed switch to control the matrix mode for output signals.
Table Matrix mode depending on by the voltage of pin 16
VOLTAGE OF PIN 16 [V]
0~
~
~
3.8 ~
0.7
2.3
3.8
MODE
Through
RGB → YUV (PAL)
RGB → YUV (NTSC)
RGB → YIQ
5 2001-07-17
5 Page 
TEST CONDITION
NOTE
ITEM
SW9
A1 YUV Gain
(Through Mode)
B
A2 RGB Gain
(Through Mode)
A
TA1287P,TA1287F
TEST CONDITION (UNLESS OTHERWISE SPECIFIED, VCC = 9 V and Ta = 25 ± 3°C)
SW10
SW MODE
SW11
SW16A
SW16B
SW16C
MEASURING METHOD
<Common test condition>
1) VCC = 9 V and Ta = 25 ± 3°C.
2) ALL switch modes are B, unless otherwise
specified.
B B B B B 1) Input Signal 1 into pin 4
2) Supply DC 0 V to YS1 (pin 9), YS2 (pin 10), YS (pin
11).
3) Input Signal 2 (f0 = 100 kHz, V0 = 0.2 Vp-p) into
V-IN (pin 1, SW1 = A).
4) Measure the amplitude of V-OUT at pin 13.
Calculate the gain. (GTRY)
5) Calculate gains of Y-IN to Y-OUT and U-IN to
U-OUT, in the same way as 3) to 4)
GTY : Y-IN (pin 2)
→ Y-OUT (pin 14)
GTBY : U-IN (pin 3)
→ U-OUT (pin 15)
A A B B B 1) Calculate gains against R, G and B, in the same
way as NOTE A1.
GRR : SW6 = A, R-IN (pin 6)
→ V-OUT (pin 13)
GRG : SW7 = A, R-IN (pin 7)
→ Y-OUT (pin 14)
GRB : SW8 = A, R-IN (pin 8)
→ U-OUT (pin 15)
11 2001-07-17
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet TA1287F.PDF ] | |
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