ta1270bfg TOSHIBA Semiconductor CORPORATION, ta1270bfg Datasheet - Page 27

• Manufacturer Part Number: ta1270bfg
• Description: Pal / Ntsc Video Chroma And Sync Processing System For Pip / Pop / Pap
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Switching block (Unless otherwise specified, SYNC / SW V
NOTE
S1
S2
S3
Y Gain
(Through Mode)
Color Difference Gain
(Through Mode)
Y Gain
(Matrix Mode)
CHARACTERISTIC
SUB ADDRESS & DATA
00
80
80
80
01
80
80
80
02
80
81
82
83
81
82
83
or
or
or
or
TEST CONDITION
SW10
SW10
SW10
SW2
SW2
SW2
or
A
B
A
A
B
A
B
CC
= 9 V, DAC / C V
SW11
SW11
SW11
SW6
SW6
SW6
or
or
or
or
SW MODE
B
A
B
A
B
A
B
B
A
B
27
SW14
SW14
SW14
SW8
SW8
SW8
―
or
―
A
B
A
A
A
SW16
SW16
SW16
CC
SW9
SW9
SW9
or
―
or
―
or
―
A
B
B
A
A
B
= 5 V, preset bus data, Ta = 25°C ± 3°C)
(1) Input signal 2 to Yin2 input.
(2) Apply DC = 5 V to Ys input (Pin 32).
(3) Input signal 2 to Y1 input (Pin 29).
(4) Measure the output amplitude of Y / G output (Pin 20) and calculate the
(5) Input signal 2 to Y2 input (Pin 25), set Ys input (Pin 32)
(1) Same as (1) and (2) for S1 above.
(2) Input signal 2 to B-Y1 input (Pin 30) and input +90° phase signal of signal
(3) Measure the amplitude of the B-Y / B output and the R-Y / R output and
(4) Input signal 2 to B-Y2 input (Pin 26) and input +90° phase signal of signal
(5) Set the Ys input pin DC = 0 V and repeat (4) above.
(1) Same as (1) and (2) for S1 above.
(2) Change the sub address (06) data to PAL (81h), NTSC1 (82h), and
(3) Input signal 2 to Y1 input (Pin 29), measure the amplitude of Y / G output,
(f0 = 100 kHz, picture period amplitude = 0.2 V
gain from the input.
DC = 0 V, and repeat (3) and (4) above.
2 to R-Y1 input (Pin 30).
calculate the gain from the input.
2 to the R-Y2 input (Pin 27).
NTSC2 (83h), perform the following.
B-Y / B output, R-Y / R output, and calculate the gain from the input.
(Y1~Y / G : PAL ; GY1GP, NTSC1 ; GY1GN1, NTSC2 ; GY1GN2
Y1~B-Y / B : PAL ; GY1BP, NTSC1 ; GY1BN1, NTSC2 ; GY1BN2
Y1~R-Y / B : PAL ; GY1RP, NTSC1 ; GY1RN1, NTSC2 ; GY1RN2)
(Y1~Y / G ; GY1, Y2~Y / G ; GY2)
(B-Y1~B-Y / B ; GBY1, R-Y1~R-Y / R ; GRY1
B-Y2~B-Y / B ; GBY2, R-Y2~R-Y / R ; GRY2)
TEST METHOD
p-p
)
TA1270BFG
2005-08-18