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AFE7958

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4-transmit, 6-receive, X-band, RF-sampling AFE with 12-GSPS DACs, 3-GSPS ADCs and SYSREF monitoring

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Data sheet

AFE7958

ACTIVE
Data sheet Order now

Product details

Applications Avionics & Defense, General purpose, Industrial, Test and Measurement Number of TXs and RXs 4 TX, 6 RX Number of DUCs per TX 2 Number of DDCs per RX 2 RF frequency (max) (MHz) 12000 RF frequency (min) (MHz) 600 Operating temperature range (°C) -40 to 85 Rating Catalog
Applications Avionics & Defense, General purpose, Industrial, Test and Measurement Number of TXs and RXs 4 TX, 6 RX Number of DUCs per TX 2 Number of DDCs per RX 2 RF frequency (max) (MHz) 12000 RF frequency (min) (MHz) 600 Operating temperature range (°C) -40 to 85 Rating Catalog
FCBGA (ABJ) 400 289 mm² 17 x 17 FCBGA (ALK) 400 289 mm² 17 x 17
  • Request full data sheet
  • Four RF sampling 12GSPS DACs
  • Six RF sampling 3GSPS ADCs
  • Maximum RF signal bandwidth:
    • 4TX: 1200 MHz; 2TX: 2400MHz
    • 4RX: 1200 MHz; 6RX: 600MHz
  • RF frequency range:
    • TX: 600MHz to 12GHz
    • RX: 5MHz to 12GHz
  • Digital step attenuators (DSA):
    • TX: 39dB range, 0.125dB steps
    • RX: 25dB range, 0.5dB steps
  • Digital Up-Converters (DUC) and Digital Down-Converters (DDC): Fast frequency hopping using 16 pre-configurable Numerically Controlled Oscillators (NCOs) in DDC and DUC
  • Flexible clocking options:
    • External RF clock
    • Internal PLL mode with low speed input clock
  • SerDes data interface:
    • JESD204B and JESD204C compatible
    • TX: 8 lanes, RX/FB: 8 lanes, up to 24.75Gbps
    • Subclass 1 multi-device synchronization
    • SYSREF alignment detector
  • Package: 17mm × 17mm FCBGA, 0.8mm pitch
  • Request full data sheet
  • Four RF sampling 12GSPS DACs
  • Six RF sampling 3GSPS ADCs
  • Maximum RF signal bandwidth:
    • 4TX: 1200 MHz; 2TX: 2400MHz
    • 4RX: 1200 MHz; 6RX: 600MHz
  • RF frequency range:
    • TX: 600MHz to 12GHz
    • RX: 5MHz to 12GHz
  • Digital step attenuators (DSA):
    • TX: 39dB range, 0.125dB steps
    • RX: 25dB range, 0.5dB steps
  • Digital Up-Converters (DUC) and Digital Down-Converters (DDC): Fast frequency hopping using 16 pre-configurable Numerically Controlled Oscillators (NCOs) in DDC and DUC
  • Flexible clocking options:
    • External RF clock
    • Internal PLL mode with low speed input clock
  • SerDes data interface:
    • JESD204B and JESD204C compatible
    • TX: 8 lanes, RX/FB: 8 lanes, up to 24.75Gbps
    • Subclass 1 multi-device synchronization
    • SYSREF alignment detector
  • Package: 17mm × 17mm FCBGA, 0.8mm pitch

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.

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.
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Technical documentation

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Type Title Date
* Data sheet AFE7958 4T6R RF Sampling AFE with 12GSPS DACs and 3GSPS ADCs datasheet PDF | HTML 27 Aug 2025
Certificate AFE7958EVM EU Declaration of Conformity (DoC) 30 Jun 2025

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

AFE7958EVM — AFE7958 evaluation module

The AFE7958 evaluation module (EVM) is designed to evaluate the AFE795x family of high-speed transceivers. The EVM is populated with the AFE7958, 4-transmit, 6-receive RF-sampling transceiver, 600MHz to 12GHz, max 1200MHz IBW with SYSREF detection.
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Driver or library

AFE79XX-HSC-DESIGN — AFE79xx family high-speed transceiver design & support files

Find detailed product information on the AFE79xx product family (datasheets, EVM resources, software and firmware, reference designs, etc)
Supported products & hardware

Supported products & hardware

Products
RF transceivers
AFE7900 — 4-transmit, 6-receive RF-sampling transceiver, 5-MHz to 7.4-GHz, max 1200-MHz IBW AFE7901 — 4-transmit, 4-receive RF-sampling transceiver, 5-MHz to 7.4-GHz, max 400-MHz IBW AFE7903 — 2-transmit, 2-receive RF-sampling transceiver, 5-MHz to 7.4-GHz, max 400-MHz IBW AFE7950 — 4-transmit, 6-receive RF-sampling transceiver, 600-MHz to 12-GHz, max 1200-MHz IBW AFE7950-SP — Radiation-hardness-assured (RHA) 4-transmit 6-receive RF-sampling transceiver up to 12GHz AFE7951 — 4-transmit, 4-receive RF-sampling transceiver, 600-MHz to 12-GHz, max 400-MHz IBW AFE7953 — Two-transmit, two-receive, 600-MHz to 12-GHz, RF-sampling AFE with 12-GSPS DACs and 3-GSPS ADCs AFE7955 — 2T3R, 600-MHz to 12-GHz, RF-sampling AFE, 12-GSPS DACs, 3-GSPS ADCs, 1.2-GHz max IBW AFE7958 — 4-transmit, 6-receive, X-band, RF-sampling AFE with 12-GSPS DACs, 3-GSPS ADCs and SYSREF monitoring
RF receivers
AFE7906 — 6-channel RF-sampling receiver, 5-MHz to 12-GHz, max 1200-MHz IBW
RF transmitters
AFE7954 — four-channel, 600-MHz to 12-GHz, RF-sampling AFE, 12-GSPS DACs, 2.4-GHz max IBW
Hardware development
Evaluation board
AFE7950EVM — AFE7950 evaluation module for four-transmit, six-receive, X-band, RF-sampling AFE AFE7900EVM — AFE7900 evaluation module for four-transmit, six-receive, 5-MHz to 7400-MHz, RF-sampling AFE AFE7958EVM — AFE7958 evaluation module
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Package Pins CAD symbols, footprints & 3D models
FCBGA (ABJ) 400 Ultra Librarian
FCBGA (ALK) 400 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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