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參數(shù)資料
| 型號(hào)： | MGM3000X |
| 廠商： | SIEMENS A G |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Video Modulator for FM/AM-Audio |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 文件頁數(shù)： | 18/23頁 |
| 文件大小： | 1016K |
| 代理商： | MGM3000X |
Semiconductor Group
18
MGM 3000X
Test Circuit 6
Description of the Measurement Configuration to Measure the Modulation Depth
for Positive and Negative Modulation
Calibration:
A zero reference signal with the TV measuring receiver is given to the video signal. A
video signal with
V
Video
= 1 Vpp is connected to the video input.
Measuring:
1. Modulation depth
m
D/N
for negative modulation: pin 14 open, range peak white
value-sync level in relation to range zero reference-sync level gives
m
D/N
.
2. Modulation depth
m
D/P
for positive modulation: pin 14 to ground, range peak white
value-sync level in relation to range zero reference-peak white value gives
m
D/P
.
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