I am designing a zero IF receive chain for an RFID application. I need mixer, modulator, and local oscillator. I planned to use TRF372017 as modulator (specification seems to meet requirement for my application) because it has integrated frequency synthesizer and a buffered LO output. The problem is I cannot find information about LO output. Datasheet simply show basic application with 2 75 ohms resistor connected to VCC, I’m looking for more information.
I would like to use the buffered LO output to feed demodulator but I got no idea of the output power level and/or output impedance.
Best regards.
The outputs are open collector. The default evaluation module uses pull-up resistors of 75ohms.