MACOM recommends a 4-layer PCB with a solid ground plane, and a 50-ohm microstrip transmission line for the RF signal path. Additionally, keep the DC power supply lines away from the RF signal path to minimize noise coupling.
The SMS201 requires a bias voltage of 5V and a bias current of 100mA. Ensure the bias voltage is well-regulated and decoupled with capacitors to minimize noise. Also, use a low-impedance bias supply to prevent oscillations.
The SMS201 is rated for operation up to 85°C, but it's recommended to keep the junction temperature below 70°C for optimal reliability and performance.
Use a combination of filtering, shielding, and grounding techniques to minimize noise and spurious emissions. Add a pi-filter or a low-pass filter at the output to reduce harmonics and spurious signals.
The recommended drive level for the SMS201 is -10 dBm to 0 dBm. Driving the device too hard can lead to compression, distortion, and reduced linearity.
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SMS201 Overview
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