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Si5351aBeaconTXv1a

author: stefanoaz
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2 layer board of 0.67 x 0.65 inches (16.9 x 16.4 mm)
Uploaded: June 02, 2023
Shared: June 02, 2023
Total Price: $2.15

Small footprint Si5351a-based transmitter with TCXO reference, intended for flight / telemetry

Github link with schematic, pictorial, BOM, gerber and photos: https://github.com/stefanoaz/BeaconTXv1a

This transmitter was designed to be a replacement for existing Si5351a based synthesizer breakout boards, for applications requiring small size, light weight and TCXO reference frequency stability. For flight telemetry from a superpressure balloon, the board also incorporates static bleed resistors on the Clk0 and Clk1 outputs, which are intended to drive a dipole.

This module is a drop-in replacement for the synthesizer board used by Ken Daniel for his airborne beacon described here: https://github.com/kenndaniel/K9YO_WSPR Benefits are that it saves about 2 grams of weight vs the Adafruit synth, and is more temperature stable.

Small footprint Si5351a-based transmitter with TCXO reference, intended for flight / telemetry

Github link with schematic, pictorial, BOM, gerber and photos: https://github.com/stefanoaz/BeaconTXv1a

This transmitter was designed to be a replacement for existing Si5351a based synthesizer breakout boards, for applications requiring small size, light weight and TCXO reference frequency stability. For flight telemetry from a superpressure balloon, the board also incorporates static bleed resistors on the Clk0 and Clk1 outputs, which are intended to drive a dipole.

This module is a drop-in replacement for the synthesizer board used by Ken Daniel for his airborne beacon described here: https://github.com/kenndaniel/K9YO_WSPR Benefits are that it saves about 2 grams of weight vs the Adafruit synth, and is more temperature stable.

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      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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