AFE7988

ACTIVO

Transceptor de RF, 4 Tx, 4 Rx, 1 vía de retroalimentación, 600 MHz-6 GHz e IBW máx. de 1200 MHz

Detalles del producto

Applications Wireless infrastructure Number of TXs and RXs 4 TX, 4 RX RF frequency (max) (MHz) 6000 RF frequency (min) (MHz) 600 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 4 TX, 4 RX RF frequency (max) (MHz) 6000 RF frequency (min) (MHz) 600 Number of DUCs per TX 2 Number of DDCs per RX 2 Operating temperature range (°C) -40 to 85 Rating Catalog
FCBGA (ABJ) 400 289 mm² (17 mm × 17 mm)
  • Quad RF sampling 12-GSPS transmit DACs
  • Quad RF sampling 3-GSPS receive ADCs
  • Dual RF sampling 3-GSPS feedback ADCs (AFE792x only)
  • Maximum RF signal bandwidth:
    • TX/FB: 1200 MHz (AFE7920/88) or 400 MHz (AFE7989) or 800MHz (AFE7921)
    • RX: 600 MHz (AFE7920/88) or 400 MHz (AFE7921/AFE7989)
  • Digital Step Attenuators (DSA):
    • TX: 40 dB range, 1-dB analog and 0.125-dB digital steps
    • RX: 25 dB range, 0.5-dB steps
    • FB: 25 dB range, 0.5-dB steps
  • Single or dual-band DUC/DDCs (AFE7920/88 only) for TX and RX
  • Dual NCOs for fast frequency switching
  • 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 and JESD204C compliant
    • 8 SerDes transceivers up to 29.5 Gbps
    • 8b/10b and 64b/66b encoding
    • 12-bit, 16-bit, 24-bit, and 32-bit resolution
    • Subclass 1 multi-device synchronization
  • Package: 17-mm × 17-mm FCBGA, 0.8-mm pitch
  • Quad RF sampling 12-GSPS transmit DACs
  • Quad RF sampling 3-GSPS receive ADCs
  • Dual RF sampling 3-GSPS feedback ADCs (AFE792x only)
  • Maximum RF signal bandwidth:
    • TX/FB: 1200 MHz (AFE7920/88) or 400 MHz (AFE7989) or 800MHz (AFE7921)
    • RX: 600 MHz (AFE7920/88) or 400 MHz (AFE7921/AFE7989)
  • Digital Step Attenuators (DSA):
    • TX: 40 dB range, 1-dB analog and 0.125-dB digital steps
    • RX: 25 dB range, 0.5-dB steps
    • FB: 25 dB range, 0.5-dB steps
  • Single or dual-band DUC/DDCs (AFE7920/88 only) for TX and RX
  • Dual NCOs for fast frequency switching
  • 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 and JESD204C compliant
    • 8 SerDes transceivers up to 29.5 Gbps
    • 8b/10b and 64b/66b encoding
    • 12-bit, 16-bit, 24-bit, and 32-bit resolution
    • Subclass 1 multi-device synchronization
  • Package: 17-mm × 17-mm FCBGA, 0.8-mm pitch

The AFE79xx is a family of high performance, wide bandwidth multi-channel transceivers, integrating four RF sampling transmitter chains, four RF sampling receiver chains, and up to two RF sampling digitizing auxiliary chains (feedback paths). The high dynamic range of the transmitter and receiver chains allows the device to generate and receive 3G, 4G, and 5G signals from wireless base stations, while the wide bandwidth capability of the AFE79xx devices is designed for multi-band 4G and 5G base stations.

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. The single or dual digital down converters (DDC) provide up to 600 MHz of combined signal BW. In TDD mode, the receiver channel can be configured to dynamically switch between the traffic receiver (TDD RX) and wideband feedback receiver (TDD FB), with the capability of re-using the same analog input for both purposes.

Each transmitter chain includes a single or dual digital up converters (DUCs) supporting up to 1200-MHz combined 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 or 3rd 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.

The feedback path includes an 25-dB range DSA driving a 3-GSPS RF sampling ADC, followed by a DDC with up to 1200-MHz bandwidth.

The AFE79xx is a family of high performance, wide bandwidth multi-channel transceivers, integrating four RF sampling transmitter chains, four RF sampling receiver chains, and up to two RF sampling digitizing auxiliary chains (feedback paths). The high dynamic range of the transmitter and receiver chains allows the device to generate and receive 3G, 4G, and 5G signals from wireless base stations, while the wide bandwidth capability of the AFE79xx devices is designed for multi-band 4G and 5G base stations.

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. The single or dual digital down converters (DDC) provide up to 600 MHz of combined signal BW. In TDD mode, the receiver channel can be configured to dynamically switch between the traffic receiver (TDD RX) and wideband feedback receiver (TDD FB), with the capability of re-using the same analog input for both purposes.

Each transmitter chain includes a single or dual digital up converters (DUCs) supporting up to 1200-MHz combined 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 or 3rd 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.

The feedback path includes an 25-dB range DSA driving a 3-GSPS RF sampling ADC, followed by a DDC with up to 1200-MHz bandwidth.

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Para todas las demás aplicaciones, consulte nuestros AFE de muestreo de RF de uso general.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos AFE79xx Quad-Channel RF Transceiver With Feedback Path datasheet (Rev. C) PDF | HTML 23/06/2020
Nota sobre la aplicación RF Sampling Resource Guide PDF | HTML 5/03/2024
Guía del usuario Interfacing AFE7769DEVM With the Hitek Agilex eSOM7 FPGA PDF | HTML 28/09/2023
Nota sobre la aplicación AFE79xx Layout Guide (Rev. B) 6/04/2021
Nota sobre la aplicación System Design Considerations when Upgrading from JESD204B to JESD204C (Rev. A) 5/04/2021
Nota sobre la aplicación AFE76xx, AFE77xx, and AFE79xx JESD204 Layer Testing 15/04/2020
Nota sobre la aplicación Temp Profile to Maintain Optimum FIT Performance 23/07/2019

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

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Guía del usuario: PDF | HTML
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Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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