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RF-sampling transceivers

AFE7903

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2-transmit, 2-receive RF-sampling transceiver, 5-MHz to 7.4-GHz, max 400-MHz IBW

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Data sheet

AFE7903

ACTIVE
Data sheet Order now

Product details

Applications General purpose Number of TXs and RXs 2 TX, 2 RX Number of DUCs per TX 2 Number of DDCs per RX 2 RF frequency (max) (MHz) 7400 RF frequency (min) (MHz) 5 Operating temperature range (°C) -40 to 85 Rating Catalog
Applications General purpose Number of TXs and RXs 2 TX, 2 RX Number of DUCs per TX 2 Number of DDCs per RX 2 RF frequency (max) (MHz) 7400 RF frequency (min) (MHz) 5 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
  • Dual RF sampling 12 GSPS transmit DACs
  • Dual RF sampling 3 GSPS receive ADCs
  • Maximum signal bandwidth per TX or RX: 400 MHz
  • RF frequency range: 5 MHz - 7.4 GHz
  • Digital step attenuators (DSA):
    • TX: 40 dB range, 0.125 dB steps
    • RX: 25 dB range, 0.5 dB steps
  • Single or dual-band DUC/DDCs for TX and RX
  • 16x NCOs per TX/RX
  • Optional Internal PLL/VCO for DAC/ADC clocks or external clock at DAC or ADC sample rate
  • Sysref Alignment Detector
  • SerDes data interface:
    • JESD204B and JESD204C compatible
    • 8 SerDes transceivers up to 29.5 Gbps
    • Subclass 1 multi-device synchronization
  • Package: 17 mm × 17 mm FCBGA, 0.8-mm pitch
  • Request full data sheet
  • Dual RF sampling 12 GSPS transmit DACs
  • Dual RF sampling 3 GSPS receive ADCs
  • Maximum signal bandwidth per TX or RX: 400 MHz
  • RF frequency range: 5 MHz - 7.4 GHz
  • Digital step attenuators (DSA):
    • TX: 40 dB range, 0.125 dB steps
    • RX: 25 dB range, 0.5 dB steps
  • Single or dual-band DUC/DDCs for TX and RX
  • 16x NCOs per TX/RX
  • Optional Internal PLL/VCO for DAC/ADC clocks or external clock at DAC or ADC sample rate
  • Sysref Alignment Detector
  • SerDes data interface:
    • JESD204B and JESD204C compatible
    • 8 SerDes transceivers up to 29.5 Gbps
    • Subclass 1 multi-device synchronization
  • Package: 17 mm × 17 mm FCBGA, 0.8-mm pitch

The AFE7903 is a high performance, wide bandwidth multi-channel transceiver, integrating two RF sampling transmitter chains and two RF sampling receiver chains. With operation up to 7.4 GHz, this device enables direct RF sampling in the HF, VHF, UHF, 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 400 MHz of signal bandwidth. 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.

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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 400 MHz for two RX.

The device contains a SYSREF timing detector to allow optimization of the SYSREF input timing relative to the device clock.

The AFE7903 is a high performance, wide bandwidth multi-channel transceiver, integrating two RF sampling transmitter chains and two RF sampling receiver chains. With operation up to 7.4 GHz, this device enables direct RF sampling in the HF, VHF, UHF, 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 400 MHz of signal bandwidth. 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.

space

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 400 MHz for two RX.

The device contains a SYSREF timing detector to allow optimization of the SYSREF input timing relative to the device clock.
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Type Title Date
* Data sheet AFE7903 2T2R 5-MHz to 7.4-GHz RF Sampling AFE with 12-GSPS DACs and 3-GSPS ADCs, 400-MHz IBW datasheet (Rev. B) PDF | HTML 05 Jun 2023
User guide AFE79xx SPI Bringup Guide With Xilinx FPGAs (Rev. A) PDF | HTML 05 May 2024

Design & development

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Evaluation board

AFE7900EVM — AFE7900 evaluation module for four-transmit, six-receive, 5-MHz to 7400-MHz, RF-sampling AFE

The AFE7900 evaluation module (EVM) is an RF-sampling transceiver platform that can be configured to support up to four-transmit, four-receive, and two-feedback (4T4R+2FB) channels simultaneously.

The module evaluates the AFE7900, which is a quad-channel RF-sampling analog front end (AFE) with (...)

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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-sampling 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 AFE7953 — Two-transmit, two-receive, 600-MHz to 12-GHz, RF-sampling AFE with 12-GSPS DACs and 3-GSPS ADCs AFE7951 — 4-transmit, 4-receive RF-sampling transceiver, 600-MHz to 12-GHz, max 400-MHz IBW AFE7955 — 2T3R, 600-MHz to 12-GHz, RF-sampling AFE, 12-GSPS DACs, 3-GSPS ADCs, 1.2-GHz max IBW AFE7906 — 6-channel RF-sampling receiver, 5-MHz to 12-GHz, max 1200-MHz IBW 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 TRF1208-AFE7950EVM — TRF1208 evaluation module for high-speed RF-sampling fully-differential amplifier with AFE7950 AFE7900EVM — AFE7900 evaluation module for four-transmit, six-receive, 5-MHz to 7400-MHz, RF-sampling AFE
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FCBGA (ABJ) 400 Ultra Librarian
FCBGA (ALK) 400 Ultra Librarian
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