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Texas Instruments AFE7920EVM Transceiver Evaluation Module (EVM) is an RF-sampling transceiver platform that supports up to four transmit, four receive, and two simultaneous feedback (4T4R + 2FB) channels. The board evaluates the AFE7920, a quad-channel RF-sampling analog front end (AFE). The device includes 14-bit 12GSPS digital-to-analog converters (DACs), 14-bit 3GSPS analog-to-digital converters (ADCs), and on-chip integrated phase-locked loop (PLL) and voltage-controlled oscillator (VCO) for high-frequency clock generation for DACs and ADCs.
The AFE7920EVM can use dual digital up and down converters in each channel to simultaneously synthesize and digitize multiple wideband signals with a high dynamic range. The on-chip integrated digital step attenuator (DSA) for the receiver channels and DSA functionality for the transmitter channels are supported. Eight JESD204B/C-compatible serializer/deserializer (SerDes) transceivers running up to 29.5Gbps can be used for providing inputs and outputs to/from the AFE7920 device through the onboard FPGA mezzanine card (FMC) connector.
Texas Instruments AFE7920EVM includes the LMK04828 clock generator to provide a reference signal to the AFE on-chip PLL and to generate the required system-reference (SYSREF) signals for the JESD204B/C protocol. Also included is the option for providing a low-phase-noise external clocking solution.
