参数资料
型号: TA1270BFG
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封装: 10 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-48
文件页数: 17/39页
文件大小: 1491K
代理商: TA1270BFG
TA1270BFG
2005-08-18
24
TEST METHODS (Unless otherwise specified, SYNC / SW VCC = 9 V, DAC / C VCC = 5 V, preset bus data, Ta = 25°C ± 3°C)
Video block
TEST CONDITION
SUB ADDRESS & DATA
SW MODE
NOTE
CHARACTERISTIC
00
01
02
03
05
SW1
SW2
SW12
TEST METHOD
V1
Y Input to Y Output AC Gain
80
or
84
80
B
A
(1) Input signal 2 to Y input (Pin 40) and Yin2 input.
(f0 = 100 kHz, picture period amplitude = 0.2 Vp-p)
(2) Change the sub address (02) data to TRAP-OFF (80h) and TRAP-ON
(84h) and perform the following :
(3) Measure the picture period amplitude (v37) of the Y output (Pin 37) and
determine the gain from Y input.
GYs, GYt = 20
og
l
(v37 / 0.2)
(GYs ; TRAP-OFF, GYt ; TRAP-ON)
V2
Y Output Offset Amount
80
0
80
or
81
B
A
(1) Input signal 2 to Y input (Pin 40) and Yin2 input.
(f0 = 100 kHz, picture period amplitude = 0.2 Vp-p)
(2) Set the sub address (01) data to 00 and measure the minimum potential
(VYO1) of the Y output (Pin 37) picture period amplitude.
(3) Set the sub address (05) data to Y-OFST-ON (81), measure the minimum
potential (VYO2) of the Y output picture period amplitude, and determine
the difference from VYO1.
VYO = VYO2 VYO1
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