DC2349A

Demonstration circuit 2349A showcases the LTC®5586 wideband high linearity IQ demodulator with IF amplifier. The Linear Technology USB serial controller, DC590B, is required to control and configure LTC5586 for its evaluation. Demo circuit 2349A’s two switchable single-ended RF inputs are optimized for 700MHz to 6GHz. Its single ended LO input is programmable for 300MHz to 6GHz operation via SPI bus. The demo circuit includes discrete L-C inter-stage low pass filters between the demodulator outputs and the IF amplifier inputs which limits the DC-coupled differential I and Q outputs to about 500MHz.

Notes

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