| 摘要 |
The circuit for controlling DC bias of IF amplifier to increase reliability of horizontal/vertical separation in satellite broadcast receiver includes amplifiers(23,24) amplifying horizontal/vertical signal received from receiver to high frequency one, mixers(25,26) mixing amplified signals and local oscillated signal to provide IF frequency, n X n switching circuit(30) providing n outputs selectively after receiving n inputs of horizontal/vertical IF frequency signal, and receivers(28,29) receiving n outputs.
|
