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AFE8128

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8-transmit 8-receive 2-feedback RF-sampling transceiver, 400MHz to 7.2GHz

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Data sheet

AFE8128

ACTIVE
Data sheet Order now

Product details

Applications Wireless infrastructure Number of TXs and RXs 8 TX, 8 RX, 2 F RF frequency (max) (MHz) 7200 RF frequency (min) (MHz) 400 Number of DUCs per TX 2 Number of DDCs per RX 2 Operating temperature range (°C) -40 to 85 Rating Catalog
Applications Wireless infrastructure Number of TXs and RXs 8 TX, 8 RX, 2 F RF frequency (max) (MHz) 7200 RF frequency (min) (MHz) 400 Number of DUCs per TX 2 Number of DDCs per RX 2 Operating temperature range (°C) -40 to 85 Rating Catalog
FCBGA (APK) 400 289 mm² (17 mm × 17 mm)

  • Eight (AFE8128)/ four (AFE8124) RF sampling 12GSPS transmit DACs

  • Eight (AFE8128)/ four (AFE8124) RF sampling 6GSPS receive ADCs
  • Two RF sampling 6GSPS feedback ADCs
  • Maximum RF signal bandwidth:
    • TX/FB: 880MHz.
    • RX: 800MHz
  • RF frequency range: 400MHz to 7.2GHz
  • Digital Step Attenuators (DSA):
    • TX: 39dB range, 1dB analog and 0.125dB digital steps
    • RX/FB: 31dB range, 1dB step
  • Dual DUC/DDCs per chain
  • Supports TDD operation with fast switching between TX and RX
  • Internal PLL/VCO to generate DAC/ADC clocks
    • Optional external CLK at DAC or ADC rate
  • SerDes data interface:
    • JESD204B, JESD204C
    • 8 SerDes transceivers up to 32.5Gbps (NRZ)
    • 12-bit, 16-bit, 24-bit, and 32-bit resolution
    • Subclass 1 multi-device synchronization
  • Package:
    • 17mm × 17mm FCBGA, 0.8mm pitch

  • Eight (AFE8128)/ four (AFE8124) RF sampling 12GSPS transmit DACs

  • Eight (AFE8128)/ four (AFE8124) RF sampling 6GSPS receive ADCs
  • Two RF sampling 6GSPS feedback ADCs
  • Maximum RF signal bandwidth:
    • TX/FB: 880MHz.
    • RX: 800MHz
  • RF frequency range: 400MHz to 7.2GHz
  • Digital Step Attenuators (DSA):
    • TX: 39dB range, 1dB analog and 0.125dB digital steps
    • RX/FB: 31dB range, 1dB step
  • Dual DUC/DDCs per chain
  • Supports TDD operation with fast switching between TX and RX
  • Internal PLL/VCO to generate DAC/ADC clocks
    • Optional external CLK at DAC or ADC rate
  • SerDes data interface:
    • JESD204B, JESD204C
    • 8 SerDes transceivers up to 32.5Gbps (NRZ)
    • 12-bit, 16-bit, 24-bit, and 32-bit resolution
    • Subclass 1 multi-device synchronization
  • Package:
    • 17mm × 17mm FCBGA, 0.8mm pitch

The AFE812x is a high performance, wide bandwidth multi-channel transceiver, integrating eight (AFE8128) / four (AFE8124) RF sampling transmitter chains, eight (AFE8128) / four (AFE8124) RF sampling receiver chains and two separate RF sampling auxiliary chains (feedback paths). The high dynamic range of the transmitter and receiver chains allows generating and receiving 2G, 3G, 4G and 5G signals for wireless base stations, while the wide bandwidth capability makes the AFE812x an excellent choice for multi-band 4G and 5G base stations.

Each receiver chain includes a 30dB range DSA (Digital Step Attenuator), followed by a 6GSPS ADC (analog-to-digital converter). Each receiver channel has analog peak power detectors and digital peak and power detectors to assist an external or internal autonomous automatic gain controller, and RF overload detectors for device reliability protection. The digital down converters (DDC) provides up to 800MHz of combined signal BW .

Each transmitter chain includes digital up converters (DUCs) supporting up to 800MHz combined signal bandwidth with a mixed mode output option to enhance 2nd Nyquist operation. The DAC output includes a variable gain amplifier (TX DSA) with 39dB range and 1dB analog and 0.125dB digital steps.

The AFE812x is a high performance, wide bandwidth multi-channel transceiver, integrating eight (AFE8128) / four (AFE8124) RF sampling transmitter chains, eight (AFE8128) / four (AFE8124) RF sampling receiver chains and two separate RF sampling auxiliary chains (feedback paths). The high dynamic range of the transmitter and receiver chains allows generating and receiving 2G, 3G, 4G and 5G signals for wireless base stations, while the wide bandwidth capability makes the AFE812x an excellent choice for multi-band 4G and 5G base stations.

Each receiver chain includes a 30dB range DSA (Digital Step Attenuator), followed by a 6GSPS ADC (analog-to-digital converter). Each receiver channel has analog peak power detectors and digital peak and power detectors to assist an external or internal autonomous automatic gain controller, and RF overload detectors for device reliability protection. The digital down converters (DDC) provides up to 800MHz of combined signal BW .

Each transmitter chain includes digital up converters (DUCs) supporting up to 800MHz combined signal bandwidth with a mixed mode output option to enhance 2nd Nyquist operation. The DAC output includes a variable gain amplifier (TX DSA) with 39dB range and 1dB analog and 0.125dB digital steps.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet AFE812x Octal/Quad-Channel RF Transceiver with Feedback Paths datasheet PDF | HTML Mar 20, 2026
Application note SYSREF Alignment Detector PDF | HTML Jul 21, 2026
Analog design Journal Realizing 5G Network Potential through mMIMO and Precise Beamforming Technology PDF | HTML May 4, 2026

Design & development

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Evaluation board

AFE8128EVM — AFE8128 evaluation module

The AFE8128 evaluation modules (EVMs) are evaluation boards used to evaluate the AFE812x family of integrated RF Sampling transceivers from Texas Instruments. The AFE8128 devices support up to eight transmit, eight receive, and two feedback channels (8T8R2F). The devices integrate the phase-locked (...)
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FCBGA (APK) 400 Ultra Librarian
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