參數(shù)資料
型號: TA1276AF
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80
文件頁數(shù): 63/83頁
文件大?。?/td> 1585K
代理商: TA1276AF
TA1276AF
2002-01-29
66
Test Conditions (unless otherwise stated, VCC1 = 5 V, VCC2/VCC3/DEF VCC = 9 V, Ta = 25 ± 3°C)
Switching Mode
Note
Parameter
SW16
SW17
SW18
SW20
SW23
SW25
Test Conditions
DEF Block
DEF Block common test conditions
SW13: A, SW33: A, SW34: A, SW35: A, SW37: A, SW38: A,
SW39: A, SW48: ON, SW49: ON, SW51: B, SW52: B,
SW56: ON, BUS Data = power on reset
D1
Horizontal Oscillation Control
Sensitivity
D
B
ON
OFF
A
ON
Calculate the pin 41 (H.out) frequency variation rate when the voltage on pin 45 is varied by
±0.05 V with
a horizontal oscillation frequency of 15.734 kHz.
D2
Horizontal Sync Phase
C
ON
Measure the phase difference SPH1 of the pin 41 (H.out)
waveform in relation to the pin 49 (HD.out) waveform
when a 50 Hz composite video signal is applied to TP52.
Measure the phase difference SPH2 of the pin 45
waveform in relation to the center of the input signal’s
horizontal sync signal Also, apply a 60 Hz composite
video signal to pin 52 and measure SPH3.
0.8
s
SPH2, SPH3
4.7
s
a
a/2
63.5
s
0.25 V
Pin 41 Signal
SPH1
41%
59%
63.5
s
Pin 49 Waveform
Pin 45 Waveform
Pin 52 Input Signal
52
TG7
(sync input)
TP52
Pin 52
M
45
(AFC1 filter pin)
Pin 45
38
(H.BLK input)
Pin 38
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