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参数资料
| 型号： | TA8865BN |
| 元件分类： | 接收器 |
| 英文描述： | AUDIO/VIDEO DEMODULATOR, PDIP36 |
| 封装： | 0.500 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-36 |
| 文件页数： | 8/27页 |
| 文件大小： | 571K |
| 代理商： | TA8865BN |
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TA8865BN
2001-02-21 16/27
TEST CONDITION
Note 1: B / G Video Output Amplitude
(1) Set SW6 to a and SW3 to a, and input SIG4 to Tp8.
(2)Measure Tp16 output amplitude.
Note 2: B / G Input Sensitivity
(1) Same as above.
(2) Gradually lower the input level, and measure the input level at which Tp16 output amplitude reached
3dB. The reference value (0dB) is the Tp16 signal amplitude when input signal amplitude is 90dBV.
Note 3: B / G maximum Input
(1) Same as above.
(2) Gradually raise the input level, and measure the input level at which Tp16 output amplitude reaches
0.5dB. The reference value (0dB) is the Tp16 signal amplitude when input signal amplitude is 90dBV.
Note 4: B / G No-Signal Level
(1) Set SW6 to a and SW3 to a, with no input, apply 3V to Tp10.
(2) Measure the Tp16 DC voltage.
Note 5: B / G Sync Tip Level
(1) Set SW6 to a and SW3 to a, and input SIG4 to Tp8.
(2) Measure the sync tip DC level of Tp16.
Note 6: DG / DP
(1) Same as above.
(2) Measure DG and DP using a vector scope.
Note 7: Video S / N Ratio
(1) Set SW6 to a and SW3 to a, and input SIG5 to Tp8.
(2) Measure the Tp16 output amplitude using an RMS meter.→ (VS / N1)
(3) Input SIG1 (non-modulation) to Tp8 measure the Tp16 output amplitude.→ (VS / N2)
(4) Determine the video S / N ratio using the following equation :
[dB]
6
]
rms
[mV
N2
/
S
V
]
rms
[mV
N1
/
S
V
og
20
V
N
/
S
×
=
l
Note 8: Carrier Suppression Ratio
(1) Set SW6 to a and SW3 to a, and input SIG5 to Tp8.
(2) Measure the output amplitude of Tp16.→ (VCR1) [rms]
(3) Input SIG1 (non-modulation) to Tp8 using a spectrum analyzer, measure the 38.9MHz component of
Tp16 output.→ (VCR2) [rms]
(4) Determine the carrier suppression ratio using the following equation :
[dB]
]
rms
[mV
CR2
V
]
rms
[mV
CR1
V
og
20
CR
l
=
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相关代理商/技术参数 |
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|---|---|
| TA8867AN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:VIDEO, CHROMA, AND SYNC. SIGNAL PROCESSING IC FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS |
| TA8867BN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:VIDEO, CHROMA, AND SYNC. SIGNAL PROCESSING IC FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS |
| TA8874Z | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR DOMESTIC TV/VTR |
| TA8874Z_01 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR DOMESTIC TV / VTR |
| TA8876FA | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:FOR LCD TVS, PIF, QIF, AND SIF SYSTEMS |
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