The AFE7958 is a high performance, wide bandwidth multi-channel transceiver, integrating four (4T) RF sampling transmitter (TX) chains and a total of six (6R) RF sampling receivers. With operation up to 12GHz, the AFE enables direct RF sampling in the L, S, C and X-band frequency ranges without the need for additional frequency conversions stages. This high density and configurability enables high-channel-count, multi-mission systems.
The TX and RX interface data rates can be chosen based on signal bandwidths, and is limited by the JESD204B/C interface speed. The data streams are matched to the DAC update rate or to the ADC conversion rate using interpolation in the DUC or decimation in the DDC.
The DAC runs at a maximum rate of 12GSPS, and has a mode to operate in the 2nd Nyquist, enabling the generation of RF signals up to 12GHz. A variable gain amplifier (termed as TDSA) enables changing the power output from the transmitter.
Each receive chain has a Digital Step Attenuator (RDSA) followed by a 3GSPS ADC which can convert higher Nyquist zones to digitize RF signals up to a maximum of 12GHz. Digital peak detectors at the ADC output can be configured to assist an external Automatic Gain control (AGC) loop to control LNA (external) gain and DSA (internal) attenuation.
The AFE7958 can be programmed using the SPI interface. The device also has several GPIOs that can be configured to provide interrupts and to achieve a fast control of functions like NCO switching.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | AFE7958 4T6R RF Sampling AFE with 12GSPS DACs and 3GSPS ADCs datasheet | PDF | HTML | Aug 27, 2025 |
| Application note | AFE79xx Linux Driver | PDF | HTML | Jul 30, 2026 | |
| Application note | AFE79xx Bringup Using HDL Module Without Microcontroller | PDF | HTML | Aug 14, 2025 | |
| Application note | AFE79XX as a Chirp Signal Generator | PDF | HTML | Jul 10, 2024 | |
| Application note | Debugging AFE7950 for Run Time and Post Bring-Up Failure | PDF | HTML | Jun 28, 2024 | |
| User guide | AFE79xx SPI Bringup Guide With Xilinx FPGAs (Rev. A) | PDF | HTML | May 5, 2024 | |
| Application note | AFE79xx as Single Chip Wideband Repeater Solution (Rev. A) | PDF | HTML | May 30, 2023 | |
| Application note | Determining Optimal Receive Buffer Delay in JESD204B and JESD204C Receivers | PDF | HTML | Jul 7, 2022 | |
| Application note | AFE7950 Super-Heterodyne Solution for K-Band | PDF | HTML | Feb 15, 2022 | |
| Application note | How to Achieve Frequency Hopping with the AFE79xx | Jul 2, 2020 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| FCBGA (ABJ) | 400 | Ultra Librarian |
| FCBGA (ALK) | 400 | Ultra Librarian |
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