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參數(shù)資料
| 型號： | TDA5666-5 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP18 |
| 封裝： | PLASTIC, DIP-18 |
| 文件頁數(shù)： | 6/22頁 |
| 文件大小： | 660K |
| 代理商： | TDA5666-5 |
Semiconductor Group
14
TDA 5666-5
Test Circuit 4
Description of the Measurement Configuration to Measure the Audio and/or Noise
in Video during FM-modulation of the Audio Carrier
Calibration:
AF-signals are switched off, video signal is present at video input, modulation
measurement device set at AM is adjusted to video carrier; filter: 300 Hz...20 kHz;
detector: (P+P)/2; Wave analyzer at video signal level (16 kHz) adjusted and
resultant level as reference av defined.
1) Measurement of audio interference product ratio in video while the audio carrier FM modulated:
AF-signal is connected to FM-audio input; video signal is present at video input; Modulation
measurement device set at AM; filter: 300 Hz...20 kHz; detector: (P+P)/2; the automatic RF-level
position of the measurement device is switched off; wave analyzer at video signal level 1 kHz or
2 kHz or 3 kHz adjusted and resultant level is set to aA. The audio noise ratio in video results
from aA/V = aA-aV (dB).
2) Measurement of signal-to-noise ratio in video without FM-modulation of audio carrier: AF-signals
are switched off; video signal is switched on; modulation measurement device set at AM; filter:
300 Hz...3 kHz; detector: RMS x
; Wave analyzer at video signal level (16 kHz) detuned; read
out in dB to reference level of calibration is aN/V;
3) The noise limit of the measurement device is approx. 85 dB.
2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| TDA5667-5 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Video Modulator for FM/AM-Audio |
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| TDA5703 | 制造商:-- 功能描述:ANALOG-TO-DIGITAL CONVERTER, 8-BIT, GENERAL-PURPOSE, BINARY-OUTPUT ADC, PDIP24 |
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