A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the RF traces short and away from the digital lines. Use a common mode filter or a Pi-filter to reduce EMI.
Use a voltage regulator to maintain a stable VCC of 3.3V or 5V. Ensure the bias voltage (VBAT) is set to the recommended 2.85V to 3.15V range. Use a voltage divider or a dedicated bias circuit to set the bias voltage.
The PE43705B-Z can handle up to 30 dBm (1W) of input power. However, it's recommended to operate at 20 dBm (0.1W) or less to ensure optimal linearity and reliability.
Check the PCB layout for any signs of EMI or crosstalk. Verify the bias voltage and current. Ensure the input and output impedances are matched. Use a spectrum analyzer to identify any spurious signals or harmonics.
Yes, the PE43705B-Z can be used in a push-pull configuration to improve linearity and reduce distortion. However, this requires careful impedance matching and biasing to ensure optimal performance.
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