Texas Instruments AFE7951 4T4R RF Sampling Analog Front End
Texas Instruments AFE7951 4T4R RF Sampling Analog Front End (AFE) is a high-performance, wide-bandwidth multi-channel transceiver integrating four RF sampling receiver chains and four RF sampling transmitter chains. With operation up to 12GHz, this device enables direct RF sampling in the L, S, C, and X-band frequency ranges. This feature is done without the need for additional frequency conversion stages. This improvement in flexibility and density enables high-channel-count, multi-mission systems.
The TX signal paths support digital up and interpolation conversion options that deliver up to 400MHz of signal bandwidth per TX channel. 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 of the Texas Instruments AFE7951 includes a variable gain amplifier (TX DSA) with a 40dB range and 1dB analog and 0.125dB digital steps.
Features
- Quad RF sampling 12GSPS transmit DACs
- Quad RF sampling 3GSPS receive ADCs
- Maximum RF signal bandwidth of 400MHz
- 600MHz to 12GHz RF frequency range
- Digital step attenuators (DSA)
- TX: 40dB range, 0.125dB steps
- RX: 25dB range, 0.5dB steps
- Single or dual-band DUC or DDCs
- 16x NCOs per TX or RX
- 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
- Eight SerDes transceivers up to 29.5Gbps
- Subclass 1 multi-device synchronization
- 17mm × 17mm FCBGA, 0.8mm pitch package
Applications
- Radar
- Seeker front end
- Defense radio
- Tactical communications infrastructure
- Wireless communications test
Functional Block Diagram
Related Development Tool
Texas Instruments AFE7950EVM AFE Evaluation Module (EVM)
Evaluates the AFE7950 that is a quad-channel, RF-sampling, analog front end (AFE).
Published: 2024-06-20
| Updated: 2024-06-25