AFE7950
4-transmit, 6-receive RF-sampling transceiver, 600-MHz to 12-GHz, max 1200-MHz IBW
AFE7950
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- Quad RF sampling 12GSPS transmit DACs
- Quad RF sampling 3GSPS receive ADCs
- Dual RF sampling 3GSPS feedback (auxilliary RX) ADCs
- Maximum RF signal bandwidth:
- 4TX or 2FB: 1200MHz or 2TX: 2400MHz
- RX: 1200MHz (no FB), 600MHz (with FB)
- RF frequency range:
- TX: 600MHz - 12GHz
- RX/FB: 600MHz -12GHz
- Digital step attenuators (DSA):
- TX: 40dB range, 0.125dB steps
- RX or FB: 25dB range, 0.5dB steps
- Single or dual-band DUC or DDCs for TX and RX
- 16x NCOs per TX or RX and FB
- Optional Internal PLL or VCO for DAC or ADC clocks or external clock at DAC or ADC sample rate
- SerDes data interface:
- JESD204B and JESD204C compatible
- 8 SerDes transceivers up to 29.5Gbps
- Subclass 1 multi-device synchronization
- Package: 17mm × 17mm FCBGA, 0.8mm pitch
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).

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Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
FCBGA (ABJ) | 400 | Ultra Librarian |
FCBGA (ALK) | 400 | Ultra Librarian |
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