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參數(shù)資料
| 型號： | TA1276AFG |
| 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)： | 44/51頁 |
| 文件大?。?/td> | 1573K |
| 代理商： | TA1276AFG |
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TA1276AFG
2002-04-01
49
Test Conditions (unless otherwise stated, VCC1 = 5 V, VCC2/VCC3/DEF VCC = 9 V, Ta = 25 ± 3°C)
Subaddress
Switching Mode
Note
Parameter
07
10
17
18
SW5
SW6
SW13
SW15
Test Conditions
Chroma Block
Chroma block common test conditions
SW13: B, SW15: C, SW18: ON, SW20: ON, SW23: ON, SW24: ON, SW25: ON,
SW33: A, SW34: A, SW35: A, SW37: A, SW38: A, SW39: A, SW46: ON
C1
ACC Characteristics
80
00
OPEN
B
A
1)
Input 3.58-NTSC rainbow signal (C-4 signal) burst/chroma signals with the same
burst/chroma amplitude to the chroma input pin (TP54).
2)
Measure the output amplitudes F10, F30, F300, and F600 of the UQ output pin 65
when the chroma input amplitude levels are set to 10, 30, 300, and 600 mVp-p.
3)
Calculate A
= F30/F300.
C2
APC Frequency Control
Sensitivity
↑
A
↑
1)
Connect SW13 to A.
2)
Switch the color system mode (10) to 3.58 NTSC (00), 4.43 PAL (60), and M-PAL
(80) and measure the following for each of those cases.
3)
Connect external voltage source (V11) to APC filter pin 58.
4)
Vary the voltage of the external voltage source (V11) and observe the fsc output pin
72 using a frequency counter.
5)
Measure the free-run sensitivity
β for the V11 + V11 (100 mV) near the fc.
(3.5 NTSC
= β3, 4.3; PAL = β4; M-PAL = βM)
C3
APC Pull-In and Hold Range
↑
1)
Input 3.579545 MHz, 4.433619 MHz, and 3.575611 MHz continuous waves (200
mVp-p to the chroma input pin (TP54).
2)
Switch the color system mode (10) to 3.58 NTSC (00), 4.43 PAL (60), and M-PAL
(80), and measure the following for each of those cases.
3)
Vary the input signal frequency in 10 Hz-steps within a range of
±3 kHz.
4)
Clamp B/W
→ color mode (f*P*). While holding color → B/W mode (f*H*),
measure the
± deviations from the frequency at each continuous wave input.
C4
SECAM Output DC Level
Change
↑
C0
00
or
30
or
60
↑
1)
Connect SW13 to A.
2)
Measure the output DC level of the SECAM control pin 3 when the color system
mode (10) is switched to 3.58 NTSC (00), 4.43 PAL (30), and SECAM (60).
(3.58 NTSC mode: SEN)
(4.43 PAL mode: SEP)
(SECAM mode: SES)
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