The AFE7900 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 7.4 GHz, this device enables direct RF sampling in the L, S and C-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 1200 MHz of signal bandwidth for four TX or 2400 MHz for two TX. The output of the DUCs drives a 12-GSPS 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 1-dB analog and 0.125-dB digital steps.
Each receiver chain includes a 25-dB range DSA (Digital Step Attenuator), followed by a 3-GSPS 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 1200 MHz for four RX without FB paths or 600 MHz with two FB paths (1200 MHz BW each).
The device contains a SYSREF timing detector to allow optimization of the SYSREF input timing relative to the device clock.
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| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | AFE7900 4T6R RF Sampling AFE with 12 GSPS DACs and 3 GSPS ADCs datasheet (Rev. B) | PDF | HTML | Jun 30, 2023 |
| 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 | 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.
The AFE7900 family evaluation module (EVM) is a flexible RF-sampling transceiver platform that can be configured to support up to four-transmit, four-receive, and two-feedback (4T4R+2FB) channels simultaneously. The EVM interfaces with the TI pattern/capture card solution shown below (sold (...)
The JESD204 rapid design IP has been designed to enable FPGA engineers to achieve an accelerated path to a working JESD204 system. The IP has been architected in a way that downstream digital processing and other application logic are isolated from most of the performance- and timing-critical (...)
This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter [analog-to-digital converter (ADC) and digital-to-analog converter (DAC)] and analog front-end (AFE) platforms. Designed to support the entire (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| FCBGA (ALK) | 400 | Ultra Librarian |
| FCBGA (ABJ) | 400 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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