The AFE7422 is a dual-channel, wideband, RF-sampling analog front end (AFE) based on 14-bit, 9-GSPS DACs and 14-bit, 3-GSPS ADCs. With operation at an RF of up to 6 GHz, this device enables direct RF sampling into the C-band frequency range without the need for additional frequency conversions stages. This improvement in density and flexibility enables high-channel-count, multimission systems.
The DAC signal paths support interpolation and digital up conversion options that deliver up to 1200 MHz of signal bandwidth. The differential output path includes a digital step attenuator (DSA), which enables tuning of output power.
Each ADC input path includes a dual DSA and RF and Digital power detectors. Flexible decimation options provide optimization of data bandwidth and a decimation bypass mode is also available for widest signal bandwidth.
An 8-lane (8 TX + 8 RX) subclass-1 compliant JESD204B interface operates at up to 15 Gbps. A bypassable on-chip PLL simplifies clock operation with an optional clock output.
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|Part number||Order||# of TX/RX||# of DUCs/TX||# of DDCs/RX||Data rate (MSPS)||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)||Approx. price (US$)|
||2T2R||2||2||1500||-40 to 85||FCBGA | 400||400FCBGA: 289 mm2: 17 x 17 (FCBGA | 400)||1249.90 | 100u|
|AFE7444||Samples not available||4T4R||2||2||750||-40 to 85||FCBGA | 400||400FCBGA: 289 mm2: 17 x 17 (FCBGA | 400)||1749.90 | 100u|