參數(shù)資料
型號(hào)： TA8700AN
元件分類(lèi)： 接收器
英文描述： AUDIO/VIDEO DEMODULATOR, PDIP20
封裝： 0.300 INCH, 1.78 MM PITCH, PLASTIC, SDIP-20
文件頁(yè)數(shù)： 2/17頁(yè)
文件大?。?/td> 423K
代理商： TA8700AN
TA8700AN
2001-05-10
10
Note 11: Intermodulation
PIF input (Pin 4) : Input the following composite signals to the PIF input.
(1) SG1 : 58.75MHz (P) 84dBV
(2) SG2 : 54.25MHz (S) 74dBV
(3) SG3 : 55.17MHz (C) 74dBV
Monitor the video output (Pin 15-b) detection output waveform. Apply external voltage to the 2nd AGC
terminal (Pin 1) so that the waveform’s lowest level matches the sync. Tip level.
Using a spectrum analyzer, measure the difference between the level of the chroma signal component and
920kHz signal component.
Note 12: FM detection output level
SIF input (Pin 12) : fo = 4.5MHz, fm = 400Hz, 25kHz / devi, 100dBV.
Measure the sound detection output of the sound output terminal (Pin 8).
Note 13: Limiting sensitivity
SIF input (Pin 12) : Input same as Note 12. Gradually reduce the input signal. Measure the input level when
the sound detection output of the sound output terminal (Pin 8) will be 3dB.
Note 14: AM Suppression ratio
SIF input (Pin 12) : fo = 4.5MHz, 84dBV.
Measure the sound detection output level of the sound output terminal (Pin 8) when the above signals are
modulated as follows. Calculate The ratio.
(1) AM modulation: fm = 400Hz, 30%
(2) FM modulation: fm = 400Hz, 25kHz / devi
[dB]
)
(mV
modulation
AM
with
)
(mV
modulation
FM
with
og
20
AMR
rms
rms
=
l
Note 15: 3dB bandwidth
SIF input (Pin 12) : fo=4.5MHz, fm=400Hz, 7.5kHz / devi, 100dBV.
(1) fAFh: Gradually raise the frequency. Measure the input frequency when the sound detection output of
the sound output terminal will be 3dB.
(2) fAFl: Gradually lower the frequency. Measure the input frequency when the sound detection output of
the sound output terminal will be 3dB.
3dB bandwidth = (fAFhfAFl) [kHz]
Note 16: Distortion bandwidth (1.5%)
SIF input (Pin 12) : Input same as Note 15.
(1) fDAFh: Gradually raise the frequency. Measure the Input frequency when the sound distortion ratio of
the sound output terminal will be 1.5%.
(2) fDAFl: Gradually lower the frequency. Measure the input frequency when the sound distortion ratio of
the sound output terminal will be 1.5%.
Distortion bandwidth = (fDAFhfDAFl) [kHz]
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TA8701AN 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:PIF/SIF + ATT IC FOR TV/VTR
TA8703 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:QUASI-SIF SYSTEM FOR TV
TA8703S 制造商:Panasonic Industrial Company 功能描述:IC
TA8710 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:SIF CONVERTER FOR TV AND VTR
TA8710S 制造商:Panasonic Industrial Company 功能描述:IC
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