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參數(shù)資料
| 型號： | TA1270BFG |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 10 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-48 |
| 文件頁數(shù)： | 21/39頁 |
| 文件大?。?/td> | 1491K |
| 代理商： | TA1270BFG |
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TA1270BFG
2005-08-18
28
(Unless otherwise specified, SYNC / SW VCC = 9 V, DAC / C VCC = 5 V, preset bus data, Ta = 25°C ± 3°C)
TEST CONDITION
SUB ADDRESS & DATA
NOTE
CHARACTERISTIC
00
01
02
SW MODE
TEST METHOD
SW2
SW6
SW8
SW9
A
or
B
or
A
B
or
A
SW10
SW11
SW14
SW16
S4
Color Difference Gain
(Matrix Mode)
80
83
81
or
82
or
83
A
or
B
A
or
B
A
―
(1) Same as (1) and (2) for S2 above.
(2) Change the sub address (05) data to PAL (81h), NTSC1 (82h), and
NTSC2 (83h), perform the following.
(3) Measure the amplitude of Y / G output, B-Y / B output, R-Y / R output,
then calculate the gain from the input.
(Y1~Y / G : PAL ; GGYP, NTSC1 ; GGYN1, NTSC2 ; GGYN2
Y1~B-Y / B : PAL ; GBYP, NTSC1 ; GBYN1, NTSC2 ; GBYN2
Y1~R-Y / R : PAL ; GRYP, NTSC1 ; GRYN1, NTSC2 ; GRYN2)
SW2
SW6
SW7
SW8
A
B
SW14
―
S5
Switch Output
Offset Amount
80
A
―
(1) Input signal 2 to Yin2.
(2) Apply DC = 5 V to Ys input (Pin 32).
(3) Change the sub address (04) data from (80h) to (88h) and measure DC
variation VYO, VBO, and VRO of Y / G output, B-Y / B output, and
R-Y / R output picture period.
SW2
SW6
SW7
SW8
A
B
SW14
―
S6
Y / G Output
Black Level Range
Vari-
able
80
A
―
(1) Same as (1) and (2) for S1 above.
(2) Change the sub address (04) data from (80h) to (F0h) and measure the
DC variation VYB+ of the Y / G output (Pin 20) picture period. Also
change the data from (80h) to (00h) and measure the DC variation
VYB.
(3) Change the sub address (04) data from (88h) to (F8h) and from (88h) to
(08h), then measure VYO+ and VYO.
SW2
SW6
SW7
SW8
A
B
SW14
―
S7
B-Y / B Output
Black Level Range
80
Vari-
able
A
―
(1) Same as (1) and (2) for S1 above.
(2) Change the sub address (06) data from (80h) to (00h) and measure the
DC variation VBB+ of the B-Y / B output (Pin 21) picture period. Also
change the data from (80h) to (F8h) and measure the DC variation
VBB.
(3) Change the sub address (04) data to (88h) and measure VBO+ and
VBO same as (2) above.
SW2
SW6
SW7
SW8
A
B
SW14
―
S8
R-Y / R Output
Black Level Range
80
Vari-
able
80
A
―
(1) Same as (1) and (2) for S1 above.
(2) Change the sub address (05) data from (80h) to (00h) and measure the
DC variation VRB+ of the R-Y / R output (Pin 22) picture period. Also
change the data from (80h) to (F8h) and measure the DC variation
VRB.
(3) Change the sub address (04) data to (88h) and measure VRO+ and
VRO same as (2) above.
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