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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fafe7900″>View Datasheet
Texas Instruments AFE7900 RF-Sampling Analog Front End (AFE) is a high-performance, wide-bandwidth multi-channel transceiver. This device integrates four RF sampling transmitter chains, four RF sampling receiver chains, and two RF sampling feedback chains (six RF sampling ADCs total). With operation up to 7.4GHz, this device enables direct RF sampling in the L, S, and C-band frequency ranges without the need for additional frequency conversions stages. This improvement in density and flexibility enables high-channel-count, multi-mission systems.
The TX signal paths of the Texas Instruments AFE7900 support interpolation and digital upconversion options that deliver up to 1200MHz of signal bandwidth for four TX or 2400MHz for two TX. The output of the DUCs drives a 12GSPS DAC (digital to analog converter) with a mixed-mode output option to enhance the 2nd Nyquist operation. The DAC output includes a variable gain amplifier (TX DSA) with a 40dB range and 1dB analog and 0.125dB digital steps.
