Conventional dual up-conversion transmitter usually employs an intermediatefrequency (IF) mixer and a radio frequency (RF) mixer to convert baseband user signal to IF and RF in sequence.
A bipolar logarithmic intermediate-frequency (if) amplifier with received signal strength indicator (RSSI) circuit for ASK Receiver is presented.
一种适用于ask接收器中的双极型对数中频放大器，具有接收信号强度指示的功能(RSSI)。
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This direct conversion receiver can eliminate the need for intermediatefrequency (IF) signal processing, as well as the corresponding requirements for image filtering and IF filtering.