产品详细信息

Applications Wireless infrastructure # of TX/RX 4T/4R/2F # of DUCs/TX 2 # of DDCs/RX 2 Data rate (MSPS) 1474.56 RF frequency (Max) (MHz) 6000 RF frequency (Min) (MHz) 600 Operating temperature range (C) -40 to 85 Rating Catalog
Applications Wireless infrastructure # of TX/RX 4T/4R/2F # of DUCs/TX 2 # of DDCs/RX 2 Data rate (MSPS) 1474.56 RF frequency (Max) (MHz) 6000 RF frequency (Min) (MHz) 600 Operating temperature range (C) -40 to 85 Rating Catalog
FCBGA (ABJ) 400 289 mm² 17 x 17
  • 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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See the full data sheet and other design resources for the commercial wireless-specific AFE7920. Request now

For all other applications, see our general-purpose RF-sampling AFEs.

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技术文档

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类型 项目标题 下载最新的英语版本 日期
* 数据表 AFE79xx Quad-Channel RF Transceiver With Feedback Path 数据表 (Rev. C) PDF | HTML 2020年 6月 23日
用户指南 AFE79xx SPI Bringup Guide with Xilinx FPGAs PDF | HTML 2022年 11月 28日
应用手册 Synchronization of Data from Multiple JESD Receiver Lanes PDF | HTML 2022年 7月 7日
应用手册 基于AFE79xx RF Sampling ADC的输出频谱分析 2022年 1月 11日
应用手册 通过 TPS62913 低纹波和低噪声降压转换器为 AFE7920 供电 (Rev. A) 下载英文版本 (Rev.A) PDF | HTML 2022年 1月 3日
应用手册 AFE79xx Family as Single Chip Wideband Repeater Solution using Low Latency Loop PDF | HTML 2021年 9月 29日
应用手册 基于特定信号选择TI AFE79xx的PAP参数方法 2021年 5月 7日
应用手册 AFE79xx 布局指南 (Rev. B) PDF | HTML 下载英文版本 (Rev.B) 2021年 5月 3日
应用手册 从 JESD204B 升级到 JESD204C 时的系统设计注意事项 (Rev. A) PDF | HTML 下载英文版本 (Rev.A) 2021年 5月 3日
应用手册 AFE79xx AGC+LNA Bypass参数设置 2021年 4月 1日
应用手册 基于AFE79xx的JESD204C 应用简述 2021年 4月 1日
技术文章 Minimize noise and ripple with a low-noise buck converter 2020年 10月 21日
应用手册 AGC简述 2020年 9月 25日
应用手册 How to Achieve Frequency Hopping with the AFE79xx 2020年 7月 2日
应用手册 AFE76xx, AFE77xx, and AFE79xx JESD204 Layer Testing 2020年 4月 15日
技术文章 So, what's a VNA anyway? 2019年 8月 23日
技术文章 So, what's the deal with frequency response? 2019年 8月 23日
应用手册 Temp Profile to Maintain Optimum FIT Performance 2019年 7月 23日
技术文章 So, what are S-parameters anyway? 2019年 5月 23日

设计和开发

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评估板

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AFE79-LMH9-EVM 评估模块 (EVM) 是一款用于评估 AFE79xx 系列集成射频采样收发器性能的电路板,该收发器可与 LMH9xxx 系列有源平衡-非平衡变压器进行连接。AFE79-LMH9-EVM 展示了 AFE7920、LMH9126、LMH9226、LMH9135 和 LMH9235。该器件完全符合下一代 5G 大规模 MIMO 有源天线系统的要求,同时可与收发器输出端相连,并驱动功率放大器 (PA) 输入端。为了轻松连接 50Ω 测试设备,默认情况下,该电路板设置为 100Ω 差分输入和 50Ω 单端输出。此 EVM 可随时通过板载连接器与 +3.3V (...)
用户指南: PDF
下载英文版本: PDF
评估板

AFE7920EVM — AFE7920 四发射四接收、双反馈路径射频采样收发器评估模块

AFE7920 评估模块 (EVM) 是一个射频采样收发器平台,通过配置可同时支持最多四个发射、四个接收和两个反馈 (4T4R+2FB) 通道。

此电路板可评估 AFE7920 器件,这是一款四通道射频采样模拟前端 (AFE),具有 14 位 12GSPS 数模转换器 (DAC)、14 位 3GSPS 模数转换器 (ADC) 以及为 DAC 和 ADC 生成高频时钟的片上集成锁相环 (PLL) 和压控振荡器 (VCO)。

AFE7920EVM 可在每个通道使用双频带数字升压转换器和降压转换器,从而同时将具有高动态范围的多个宽带信号合成并实现数字化。接收通道支持片上集成数字步进衰减器 (...)

固件

TI-JESD204-IP — JESD204 快速设计 IP,用于连接到 TI 高速数据转换器的 FPGA

JESD204 快速设计 IP 旨在为 FPGA 工程师提供一条快速通往运行中的 JESD204 系统的路径。该 IP 经过特别设计,可将下游数字处理和其他应用逻辑与 JESD204 协议的大多数性能和时序关键型限制因素隔离开。该 IP 将帮助设计人员节省固件开发时间并简化 FPGA 集成。

JESD204 快速设计 IP 免专利费,可与 TI 高速数据转换器配合使用。TI 将协助用户配置初始链路,该链路可定制,以便在特定 FPGA 平台和 TI 数据转换器 JMODE 之间使用。  在对该 IP 进行测试并确定其可以用于部署工作之后,TI 将会通过安全的下载链接提供该 IP。

JESD204 (...)

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  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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