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參數(shù)資料
| 型號： | TA1276AFG |
| 元件分類： | 消費(fèi)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)： | 39/51頁 |
| 文件大小： | 1573K |
| 代理商： | TA1276AFG |
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TA1276AFG
2002-04-01
44
Test Conditions (unless otherwise stated, VCC1 = 5 V, VCC2/VCC3/DEF V= 9 V, Ta = 25 ± 3°C)
Switching Mode
Note
Parameter
SW15
SW49
SW50
SW53
Test Conditions
V12
Picture Sharpness Control
Range
C
OFF
B
A
1)
Set the BUS control data to the preset value.
2)
Input a sine wave to TP78.
3)
Set the amplitude of pin 78 to 20 mVp-p.
4)
Set the unicolor to the maximum (1111111), set SHR tracking to SRT-gain low (11), and set the aperture compensator
peak frequency to 4.2M (001).
5)
Turn the Y mute off (1), the video mute off (0), connect TP11 and TP15b, and observe TP15a.
6)
Set the picture sharpness to the maximum (1111111). When the frequencies are 100 kHz and FAPL01, measure the
V100 and VL amplitudes respectively and calculate GMAXL by the formula shown below.
7)
Next, set the picture sharpness to the minimum (0000000). As in 6), when the frequencies are 100 kHz and 2.4 MHz,
measure the V100 and VL amplitudes respectively and calculate GMINL by the formula shown below.
8)
Set the aperture compensator peak frequency to 7.7M (111) and the picture sharpness to the maximum (1111111).
When the frequencies are 100 kHz and FAPH11, measure the V100 and VH amplitudes respectively and calculate
GMAXH by the formula shown below.
9)
Next, set the picture sharpness to the minimum (0000000). When the frequencies are 100 kHz and 4 MHz, measure
the V100 and VH amplitudes respectively and calculate GMINH by the following formula.
G**** [dB] = 20 × Log (VL (H) ÷ V100)
V13
YNR Characteristics
↑
1)
Repeat steps 1) to 5) of V12.
2)
With YNR on (1) and the picture sharpness at minimum (0000000), measure the TP15a amplitudes V100 and VL when
the input signal frequencies are 100 kHz and 2.4 MHz respectively.
3)
Next, set the aperture compensator peak frequency to 7.7M (111). When the input signal frequencies are 100 kHz and
4 MHz, measure the V100 and VH amplitudes respectively and calculate GYL and GYH by the following formula.
GYL (H) [dB] = 20 × Log (VL (H) ÷ V100)
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| TA1276AN | 制造商:Panasonic Industrial Company 功能描述:IC 制造商:Toshiba America Electronic Components 功能描述:Tv/Video Signal Proce or Toshiba IC 56-Pin DIP-S |
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