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AFE7950

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Four-transmit, six-receive, X-band, RF-sampling AFE with 12-GSPS DACs and 3-GSPS ADCs

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Product details

Parameters

Applications General Purpose # of TX/RX 4T6R # of DUCs/TX 2 # of DDCs/RX 2 Data rate (MSPS) 1500 Operating temperature range (C) -40 to 85 open-in-new Find other RF-sampling transceivers

Package | Pins | Size

FCBGA (ABJ) 400 open-in-new Find other RF-sampling transceivers

Features

  • Quad RF sampling 12-GSPS transmit DACs
  • Quad RF sampling 3-GSPS receive ADCs
  • Dual RF sampling 3-GSPS feedback (auxilliary RX) ADCs
  • Maximum RF signal bandwidth:
    • 4TX/2FB: 1200 MHz or 2TX: 2400 MHz
    • RX): 1200 MHz (no FB)/600 MHz (with FB)
  • RF frequency range:
    • TX: 600 MHz - 12 GHz
    • RX/FB: 600 MHz - 12 GHz
  • Digital step attenuators (DSA):
    • TX: 40 dB range, 0.125-dB steps
    • RX/FB: 25 dB range, 0.5-dB steps
  • Single or dual-band DUC/DDCs for TX and RX
  • 16x NCOs per TX/RX and FB
  • Optional Internal PLL/VCO for DAC/ADC clocks or external clock at DAC or ADC sample rate
  • 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
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Description

The AFE7950 is a high performance, wide bandwidth multi-channel transceiver, integrating four RF sampling transmitter chains, four RF sampling receiver chains and two RF sampling feedback chains (six RF sampling ADCs total). With operation up to 12 GHz, this device enables direct RF sampling in the L, S, C and X-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 1200 MHz of signal bandwidth for four TX or 2400 MHz for two TX. 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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For commercial-wireless applications, see our wireless-infrastructure AFEs.

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NEW AFE7900 ACTIVE Four-transmit, six-receive, 5-MHz to 7400-MHz, RF-sampling AFE with 12-GSPS DACs and 3-GSPS ADCs AFE7900 offers support from 5 MHz to 7400 MHz and adds a SYSREF detection circuit.

Technical documentation

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Type Title Date
* Data sheet AFE7950 4T6R RF Sampling AFE with 12 GSPS DACs and 3 GSPS ADCs datasheet Mar. 05, 2020
Application note 基于AFE79xx的JESD204C 应用简述 Apr. 01, 2021
Application note Powering the AFE7920 with the TPS62913 Low-Ripple and Low-Noise Buck Converter Mar. 05, 2021
Certificate AFE7950EVM EU RoHS Declaration of Conformity (DoC) Feb. 15, 2021
Technical article So, what's a VNA anyway? Aug. 23, 2019
Technical article So, what's the deal with frequency response? Aug. 23, 2019
Technical article So, what are S-parameters anyway? May 23, 2019
Technical article How to achieve fast frequency hopping Mar. 03, 2019

Design & development

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

Hardware development

EVALUATION BOARD Download
1999
Description

The AFE7950 evaluation module (EVM) is an RF-sampling transceiver platform that can be configured to simultaneously support up to four-transmit and six-receive (4T6R) channels. The module evaluates the AFE7950, which is a quad-channel, RF-sampling, analog front end (AFE) with 14-bit (...)

Features
  • Allows evaluation of 4T6R RF-sampling AFE7950 solutions
  • JESD204B/C data interface to simplify digital interface; compliant up to 29.5-Gbps lane rates
  • Supports JESD204B/C for synchronization and compatibility
  • Option for DC-DC-based LDO-less power-management solution
  • Onboard clocking solution supported (...)

Software development

FIRMWARE Download
JESD204 Rapid Design IP for FPGAs connected to TI high-speed data converters
TI-JESD204-IP The JESD204 rapid design IP has been designed to enable FPGA engineers to achieve an accelerated path to a working JESD204 system. The IP has been architected in a way that downstream digital processing and other application logic are isolated from most of the performance- and timing-critical (...)
Features
  • Compatible with JEDEC JESD204a/b/c protocols
  • Supports subclass 1 deterministic latency and multidevice synchronization
  • Supported lane rates
    • Up to 16.375 Gbps in 8b/10b mode
    • Up to 20 Gbps in 64b/66b mode
  • Supports all protocol related error detection and reporting features
  • Integrated transport layer (...)
SUPPORT SOFTWARE Download
High-speed data converter pro software
DATACONVERTERPRO-SW This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter and analog front-end (AFE) platforms. Designed to support the entire TSW14xxx series of data-capture and pattern-generation cards (...)
Features
  • Compatible with TSW1400, TSW1405, TSW1406, TSW14J10, TSW14J50, TSW14J56, TSW14J57 and TSW14J58 pattern-generation and data-capture platforms
  • Works with all TI high-speed DAC, ADC, and AFE products
  • Provides time-domain and frequency-domain analysis
  • Supports single-tone, multi-tone, and modulated (...)

CAD/CAE symbols

Package Pins Download
FCBGA (ABJ) 400 View options

Ordering & quality

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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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