8.3.5. What are the potential problems of a Class-D amplifier based system?
The two most common issues of class-D amp system are AM interference and EMI. The switching frequency of class-D ranges
from 300kHz to 450kHz typically 315kHz. The harmonics of such switching frequency will fall into the AM band of 600kHz to
1710kHz. To avoid interference, it is recommended to have a variable switching frequency adjustment circuit [usually known as
beatproofing in PSG). Systems without AM tuner are not required to have such circuitry.
24
SA-HT640WP / SA-HT640WPC
Содержание SA-HT640WP
Страница 7: ...7 SA HT640WP SA HT640WPC ...
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Страница 19: ...8 2 Detail Block Diagram Receiver module 19 SA HT640WP SA HT640WPC ...
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Страница 37: ...10 1 Disassembly Flow Chart 10 2 Main Components and P C B Locations 37 SA HT640WP SA HT640WPC ...
Страница 45: ...Step 3 Push tray assembly to the direction of arrow shown 45 SA HT640WP SA HT640WPC ...
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Страница 95: ... SMPS stands for switching mode power supply 95 SA HT640WP SA HT640WPC ...
Страница 102: ...21 3 4 2 Receiver Module P C B 102 SA HT640WP SA HT640WPC ...
Страница 104: ...23 Explode Views 23 1 Cabinet Parts Location 104 SA HT640WP SA HT640WPC ...
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Страница 107: ...23 2 Packaging 107 SA HT640WP SA HT640WPC ...