The AFE7950
is a high performance, wide bandwidth multi-channel transceiver, integrating 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 12 GHz, this device
enables direct RF sampling in the L, S, C and X-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 support
interpolation and digital up conversion 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 2nd
Nyquist operation. The DAC output includes a variable gain amplifier (TX DSA) with
40-dB range and 1dB analog and 0.125dB digital steps.
Each receiver chain includes a 25dB
range DSA (Digital Step Attenuator), followed by a 3GSPS ADC (analog-to-digital
converter). Each receiver channel has an analog peak power detector and various
digital power detectors to assist an external or internal autonomous automatic gain
controller, and RF overload detectors for device reliability protection. Flexible
decimation options provide optimization of data bandwidth up to 1200MHz for four RX
without FB paths or 600MHz with two FB paths (1200MHz BW each).
The AFE7950
is a high performance, wide bandwidth multi-channel transceiver, integrating 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 12 GHz, this device
enables direct RF sampling in the L, S, C and X-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 support
interpolation and digital up conversion 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 2nd
Nyquist operation. The DAC output includes a variable gain amplifier (TX DSA) with
40-dB range and 1dB analog and 0.125dB digital steps.
Each receiver chain includes a 25dB
range DSA (Digital Step Attenuator), followed by a 3GSPS ADC (analog-to-digital
converter). Each receiver channel has an analog peak power detector and various
digital power detectors to assist an external or internal autonomous automatic gain
controller, and RF overload detectors for device reliability protection. Flexible
decimation options provide optimization of data bandwidth up to 1200MHz for four RX
without FB paths or 600MHz with two FB paths (1200MHz BW each).