DTV Tuner Breakout for SDR

Eric Brombaugh designed this breakout board for the Rafael Microelectronics R820T2 Advanced Digital TV Silicon Tuner chip:

r820t2_breakout_assembled

R820T2 Breakout

This is the same chip used in most all of the RTL-SDR dongles, as well as the Airspy and numerous other radios. The chip is a versatile front-end with reasonable sensitivity and wide tuning range.

screenshot-at-2017-02-17-13-54-36

The design presented here is almost an exact implementation of the Mfg’s suggested demo design from the datasheet, implemented on the OSHpark 4-layer PCB process and provides a simple 4-pin interface with power, ground and I2C bus for controlling the tuner. A broad-band RF input and 10MHz IF output are provided on SMA connectors.

The breakout PCB design and STM32F0 firmware for the Rafael R820T2 tuner chip are shared on GitHub:

screenshot-at-2017-02-14-20-58-40 emeb/r820t2

 

emeb has shared project on OSH Park:

r820t2_breakout v0.1

cd102a38f8c39fe1ff2d6fe4cfe90e12.png
Order from OSH Park

DTV Tuner Breakout for SDR

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