AMIS-53050 Datasheet, PDF (23/107 Pages) AMI SEMICONDUCTOR – Frequency Agile Transceiver

AMIS-53050 Frequency Agile Transceiver
Data Sheet
Note: This section offers a simple method to combine the transmitter and the receiver into a single antenna. The AMIS-53050 turns the
receiver off and shorts the input to ground so that any transmit energy will not affect the receiver circuits.
Combining the transmitter and receiver is typically done in one of two ways:
1. A diplexer can be used if the transmit and receive frequencies are different and far enough apart to allow bandpass filtering to
separate the signals. Typical diplexers have less than one dB path loss.
2. A T/R (transmit/receive) switch can be used when the transmitter and the receiver are at the same frequency. Typical T/R
switches have 1 to 1.5 dB path loss and require a signal to control the direction of the switch.
The AMIS-53050 is not designed to provide a T/R switch control signal.
Figure 11: Single Antenna Port T/R Matching Circuit
AMI Semiconductor – Jan. 07, M-20639-002
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