Home RF & microwave RF transceivers, receivers, transmitters RF transceivers
Home
RF & microwave
RF transceivers, receivers, transmitters
RF transceivers

AFE7685

ACTIVE

4-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, single DUC/D

Order now
Data sheet

A newer version of this product is available

open-in-new Compare alternates
Similar functionality to the compared device
AFE7989 ACTIVE 4-transmit, 4-receive, 1-feedback RF-sampling transceiver, 600-MHz to 6-GHz, max 400-MHz IBW Higher RF frequency limit (up to 6GHz), double SerDes speed (29.5Gbps).

AFE7685

ACTIVE
Data sheet Order now

Product details

Applications Wireless infrastructure Number of TXs and RXs 4 TX, 4 RX RF frequency (max) (MHz) 5200 RF frequency (min) (MHz) 100 Number of DUCs per TX 1 Number of DDCs per RX 1 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) 5200 RF frequency (min) (MHz) 100 Number of DUCs per TX 1 Number of DDCs per RX 1 Operating temperature range (°C) -40 to 85 Rating Catalog
FCBGA (ABJ) 400 289 mm² 17 x 17
  • 14-Bit resolution
  • Sample rate:
    • DAC: 9GSPS
    • ADC: 3GSPS
  • RF Frequency range: up to 5.2 GHz
  • Maximum RF signal bandwidth
    • Quad-channel mode (4T4R): 800 MHz (single-band); 300 MHz (dual-band)
    • Dual-channel mode (2T2R): 1200 MHz (TX)/1000 MHz (RX) (single-band); 800MHz(dual-band)
  • On-chip dual selectable DSAs per RX channel
  • Integrated TX DSA functionality
  • Digital:
    • Dual band digital up-converters (DUCs)
    • Dual Band digital down-converters (DDCs)
    • 32-Bit NCOs for DUCs/DDCs
    • Interpolation ratio: 6x, 8x, 9x, 12x, 16x, 18x, 24x, 36x
    • Decimation ratio: /2, /3, /4, /6, /8, /9, /12, /16, /18, /24, /32
    • RX/FB Dynamic switching for TDD
  • Interface:
    • 8 SerDes Transceivers up to 15Gbps
    • 16-Bit and 12-bit JESD204B transport layer formatting with 8b/10b encoding
    • Subclass 1 multi-device synchronization
  • Clock:
    • Internal PLL/VCO to generate DAC and ADC clocks
  • Package: 17mm x 17mm FC BGA, 0.8mm pitch
  • Power supplies: 1.85 V, 1.15 V, 1.0 V, –1.8 V
  • 14-Bit resolution
  • Sample rate:
    • DAC: 9GSPS
    • ADC: 3GSPS
  • RF Frequency range: up to 5.2 GHz
  • Maximum RF signal bandwidth
    • Quad-channel mode (4T4R): 800 MHz (single-band); 300 MHz (dual-band)
    • Dual-channel mode (2T2R): 1200 MHz (TX)/1000 MHz (RX) (single-band); 800MHz(dual-band)
  • On-chip dual selectable DSAs per RX channel
  • Integrated TX DSA functionality
  • Digital:
    • Dual band digital up-converters (DUCs)
    • Dual Band digital down-converters (DDCs)
    • 32-Bit NCOs for DUCs/DDCs
    • Interpolation ratio: 6x, 8x, 9x, 12x, 16x, 18x, 24x, 36x
    • Decimation ratio: /2, /3, /4, /6, /8, /9, /12, /16, /18, /24, /32
    • RX/FB Dynamic switching for TDD
  • Interface:
    • 8 SerDes Transceivers up to 15Gbps
    • 16-Bit and 12-bit JESD204B transport layer formatting with 8b/10b encoding
    • Subclass 1 multi-device synchronization
  • Clock:
    • Internal PLL/VCO to generate DAC and ADC clocks
  • Package: 17mm x 17mm FC BGA, 0.8mm pitch
  • Power supplies: 1.85 V, 1.15 V, 1.0 V, –1.8 V

The AFE76xx is a family of high performance, quad/dual channel, 14-bit, integrated RF sampling analog front ends (AFEs) with 9 GSPS DACs and 3 GSPS ADCs, capable of synthesizing and digitizing wideband signals. High dynamic range allows the AFE76xx to generate and digitize 3G/4G signals for wireless base stations. In TDD mode, the receiver channel can be configured to dynamically switching between traffic receiver (TDD RX) status and wideband feedback receiver (TDD FB) status to assist DPD (Digital Pre-Distortion) of the Power Amplifier (PA) on the transmitter path.

The AFE76xx family has integrated DSA on the receiver channels and also supports DSA equivalent functionality on the transmitter channels. Each receiver channel has one analog RF peak power detector and various digital power detectors to assist AGC control for receiver channels, and two RF overload detectors for device reliability protection. The AFE76xx family has 8 of JESD204B compatible SerDes transceivers running up to 15 Gbps. The devices have up to two DUCs per TX channel and two DDCs per RX channel, with multiple interpolation/decimation rates and digital quadrature modulators/demodulators with independent, frequency flexible NCOs. The devices support more than 1000 MHz (800 MHz as 4T4R) RF signal bandwidth in single-band mode, and up to 800 MHz (300 MHz as 4T4R) RF signal bandwidth per band in dual-band mode. A low jitter PLL/VCO simplifies the sampling clock generation by allowing use of a lower frequency reference clock.

The AFE76xx is a family of high performance, quad/dual channel, 14-bit, integrated RF sampling analog front ends (AFEs) with 9 GSPS DACs and 3 GSPS ADCs, capable of synthesizing and digitizing wideband signals. High dynamic range allows the AFE76xx to generate and digitize 3G/4G signals for wireless base stations. In TDD mode, the receiver channel can be configured to dynamically switching between traffic receiver (TDD RX) status and wideband feedback receiver (TDD FB) status to assist DPD (Digital Pre-Distortion) of the Power Amplifier (PA) on the transmitter path.

The AFE76xx family has integrated DSA on the receiver channels and also supports DSA equivalent functionality on the transmitter channels. Each receiver channel has one analog RF peak power detector and various digital power detectors to assist AGC control for receiver channels, and two RF overload detectors for device reliability protection. The AFE76xx family has 8 of JESD204B compatible SerDes transceivers running up to 15 Gbps. The devices have up to two DUCs per TX channel and two DDCs per RX channel, with multiple interpolation/decimation rates and digital quadrature modulators/demodulators with independent, frequency flexible NCOs. The devices support more than 1000 MHz (800 MHz as 4T4R) RF signal bandwidth in single-band mode, and up to 800 MHz (300 MHz as 4T4R) RF signal bandwidth per band in dual-band mode. A low jitter PLL/VCO simplifies the sampling clock generation by allowing use of a lower frequency reference clock.
filter Find other RF transceivers
Download View video with transcript Video
Request more information

See the full data sheet and other design resources for the commercial wireless-specific AFE7685. Request now

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

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 10
Type Title Date
* Data sheet AFE76xx Quad/dual-channel, RF sampling analog front-end with 14-bit 9GSPS DACs and 14-bit 3GSPS ADCs datasheet (Rev. E) PDF | HTML 01 Mar 2019
Application note MIMO Transceiver with AFE76xx for LTE and 5G Wireless Radio (Rev. A) 02 Sep 2021
Application note Small Cell and Repeater System Using Integrated RF Sampling Device (Rev. A) 02 Sep 2021
Application note Temp Profile to Maintain Optimum FIT Performance 23 Jul 2019
Application note RF Sampling for Multi-band Radios 26 Nov 2018
Application note AFE76xx as a Single-Chip Wideband Repeater Using Loopback Mode 01 Nov 2018
Application note Dither Improves ACPR in RF Sampling DAC 24 Oct 2018
Application note Modular Communications Transceiver for 4G/5G Distributed Antenna 18 Aug 2018
Application note AFE768x Power Dissipation Comparison across Modes 25 Jul 2018
Application note An Efficient LDO-less Power Supply Solution for AFE76xx 13 Nov 2017

Design & development

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

Driver or library

AFE768X-DESIGN — AFE768x Design Files

Design resources for AFE768x Transceivers
Supported products & hardware

Supported products & hardware

Products
RF transceivers
  • AFE7686 — 4-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, dual DUC/DDC
  • AFE7685 — 4-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, single DUC/D
  • AFE7684 — 2-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, dual DUC/DDC
  • AFE7683 — 2-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, single DUC/D
  • AFE7681 — 4-transmit, 2-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW
Request
Firmware

TI204C-IP — Request for JESD204 rapid design 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 (...)

Supported products & hardware

Supported products & hardware

Products
High-speed DACs (>10 MSPS)
  • DAC37J82 — Dual-Channel, 16-Bit, 1.6-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)
  • DAC37J84 — Quad-Channel, 16-Bit, 1.6-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)
  • DAC38J82 — Dual-Channel, 16-Bit, 2.5-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)
  • DAC38J84 — Quad-Channel, 16-Bit, 2.5-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)
  • DAC38RF80 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)
  • DAC38RF82 — Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)
  • DAC38RF83 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)
  • DAC38RF84 — 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)
  • DAC38RF85 — 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)
  • DAC38RF86 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC)
  • DAC38RF87 — Dual-Channel, 14-Bit, 6.2-GSPS, 6x-24x Interpolating, 6 GHz GSM PLL Digital-to-Analog Converter
  • DAC38RF89 — Dual-Channel, 14-Bit, 8.4-GSPS, 1x-24x Interpolating, 5 & 7.5 GHz PLL Digital-to-Analog Converter
  • DAC38RF90 — Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)
  • DAC38RF93 — Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)
  • DAC38RF96 — Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC)
  • DAC38RF97 — Dual-Channel, 14-Bit, 6-GSPS, 12x-24x Interpolating, 6-GHz GSM PLL Digital-to-Analog Converter (DAC)
  • DAC39J82 — Dual-Channel, 16-Bit, 2.8-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)
  • DAC39J84 — Quad-Channel, 16-Bit, 2.8-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)
High-speed ADCs (≥10 MSPS)
  • ADC08DJ3200 — 8-Bit, Dual 3.2-GSPS or Single 6.4-GSPS, RF-Sampling Analog-to-Digital Converter (ADC)
  • ADC08DJ5200RF — RF-sampling 8-bit ADC with dual-channel 5.2 GSPS or single-channel 10.4 GSPS
  • ADC09DJ1300-Q1 — Automotive dual-channel, 9-bit, 1.3-GSPS analog-to-digital converter (ADC) with JESD204C interface
  • ADC09QJ1300-Q1 — Automotive quad-channel, 9-bit, 1.3-GSPS analog-to-digital converter (ADC) with JESD204C interface
  • ADC09SJ1300-Q1 — Automotive single-channel, 9-bit, 1.3-GSPS analog-to-digital converter (ADC) with JESD204C interface
  • ADC12DJ1600-Q1 — Automotive, 2-ch, 12-bit, 1.6-GSPS ADC with JESD204C interface and integrated sample clock generator
  • ADC12DJ2700 — 12-bit, dual 2.7-GSPS or single 5.4-GSPS, RF-sampling analog-to-digital converter (ADC)
  • ADC12DJ3200 — 12-bit, dual 3.2-GSPS or single 6.4-GSPS, RF-sampling analog-to-digital converter (ADC)
  • ADC12DJ3200QML-SP — Radiation-hardness-assured (RHA), QMLV, 300-krad, 12-bit, dual 3.2-GSPS or single 6.4-GSPS ADC
  • ADC12DJ4000RF — RF-sampling 12-bit ADC with 4-GSPS dual channel or 8-GSPS single channel
  • ADC12DJ5200RF — RF-sampling 12-bit ADC with dual-channel 5.2 GSPS or single-channel 10.4 GSPS
  • ADC12J1600 — 12-Bit, 1.6-GSPS, RF Sampling Analog-to-Digital Converter (ADC)
  • ADC12J2700 — 12-Bit, 2.7-GSPS, RF Sampling Analog-to-Digital Converter (ADC)
  • ADC12J4000 — 12-Bit, 4.0-GSPS, RF Sampling Analog-to-Digital Converter (ADC)
  • ADC12QJ1600-Q1 — Automotive, quad-channel, 12-bit, 1.6-GSPS ADC with JESD204C interface
  • ADC12SJ1600-Q1 — Automotive, 1-channel, 12-bit, 1.6-GSPS ADC with JESD204C interface
  • ADC14X250 — 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC)
  • ADC16DX370 — Dual-Channel, 16-Bit, 370-MSPS Analog-to-Digital Converter (ADC)
  • ADC31JB68 — 16-Bit, 500-MSPS Analog-to-Digital Converter (ADC)
  • ADC31RF80 — 14-Bit, 3-GSPS, RF-Sampling Wideband Receiver and Feedback IC
  • ADC32J22 — Dual-Channel, 12-Bit, 50-MSPS Analog-to-Digital Converter (ADC)
  • ADC32J23 — Dual-Channel, 12-Bit, 80-MSPS Analog-to-Digital Converter (ADC)
  • ADC32J24 — Dual-Channel, 12-Bit, 125-MSPS Analog-to-Digital Converter (ADC)
  • ADC32J25 — Dual-Channel, 12-Bit, 160-MSPS Analog-to-Digital Converter (ADC)
  • ADC32J42 — Dual-Channel, 14-Bit, 50-MSPS Analog-to-Digital Converter (ADC)
  • ADC32J43 — Dual-Channel, 14-Bit, 80-MSPS Analog-to-Digital Converter (ADC)
  • ADC32J44 — Dual-Channel, 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC)
  • ADC32J45 — Dual-Channel, 14-Bit, 160-MSPS Analog-to-Digital Converter (ADC)
  • ADC32RF42 — Dual-Channel, 14-Bit, 1.5-GSPS RF-Sampling Analog-to-Digital Converter (ADC)
  • ADC32RF44 — Dual-Channel, 14-Bit, 2.6-GSPS RF-Sampling Analog-to-Digital Converter (ADC)
  • ADC32RF45 — Dual-channel, 14-bit, 3-GSPS, RF-sampling analog-to-digital converter (ADC)
  • ADC34J22 — Quad-Channel, 12-Bit, 50-MSPS Analog-to-Digital Converter (ADC)
  • ADC34J23 — Quad-Channel, 12-Bit, 80-MSPS Analog-to-Digital Converter (ADC)
  • ADC34J24 — Quad-Channel, 12-Bit, 125-MSPS Analog-to-Digital Converter (ADC)
  • ADC34J25 — Quad-Channel, 12-Bit, 160-MSPS Analog-to-Digital Converter (ADC)
  • ADC34J42 — Quad-Channel, 14-Bit, 50-MSPS Analog-to-Digital Converter (ADC)
  • ADC34J43 — Quad-Channel, 14-Bit, 80-MSPS Analog-to-Digital Converter (ADC)
  • ADC34J44 — Quad-Channel, 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC)
  • ADC34J45 — Quad-Channel, 14-Bit, 160-MSPS Analog-to-Digital Converter (ADC)
  • ADS42JB46 — Dual-Channel, 14-Bit, 160-MSPS Analog-to-Digital Converter (ADC)
  • ADS42JB49 — Dual-Channel, 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC)
  • ADS42JB69 — Dual-Channel, 16-Bit, 250-MSPS Analog-to-Digital Converter (ADC)
  • ADS54J20 — Dual-Channel, 12-Bit, 1.0-GSPS Analog-to-Digital Converter (ADC)
  • ADS54J40 — Dual-Channel, 14-Bit, 1.0-GSPS Analog-to-Digital Converter (ADC)
  • ADS54J42 — Dual-Channel, 14-Bit, 625-MSPS Analog-to-Digital Converter (ADC)
  • ADS54J54 — Quad-Channel, 14-Bit, 500-MSPS Analog-to-Digital Converter (ADC)
  • ADS54J60 — Dual-Channel, 16-Bit, 1.0-GSPS Analog-to-Digital Converter (ADC)
  • ADS54J64 — Quad-Channel, 14-Bit, 1-GSPS, 2x-Oversampling Analog-to-Digital Converter (ADC)
  • ADS54J66 — Quad-Channel, 14-Bit, 500-MSPS Analog-to-Digital Converter (ADC)
  • ADS54J69 — Dual-Channel, 16-Bit, 500-MSPS Analog-to-Digital Converter (ADC)
  • ADS61JB23 — 12-Bit, 80-MSPS Analog-to-Digital Converter (ADC)
  • ADS61JB46 — 14-Bit, 160-MSPS Analog-to-Digital Converter (ADC)
RF transceivers
  • AFE7422 — 2-transmit, 2-receive RF-sampling transceiver, 10-MHz to 6-GHz, max 1200-MHz IBW
  • AFE7444 — 4-transmit, 4-receive RF-sampling transceiver, 10-MHz to 6-GHz, max 600-MHz IBW
  • AFE7681 — 4-transmit, 2-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW
  • AFE7683 — 2-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, single DUC/D
  • AFE7684 — 2-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, dual DUC/DDC
  • AFE7685 — 4-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, single DUC/D
  • AFE7686 — 4-transmit, 4-receive RF-sampling transceiver, 100-MHz to 5.2-GHz, max 1200-MHz IBW, dual DUC/DDC
  • AFE7700 — 4-transmit, 4-receive, 2-feedback RF transceiver, 600-MHz to 6-GHz, four PLLs, general purpose
  • AFE7769 — 4-transmit, 4-receive, 2-feedback RF transceiver, 600-MHz to 6-GHz, four PLLs, wireless purpose
  • AFE7799 — 4-transmit, 4-receive, 2-feedback RF transceiver, 600-MHz to 6-GHz, max 600-MHz IBW
  • AFE7900 — 4-transmit, 6-receive RF-sampling transceiver, 5-MHz to 7.4-GHz, max 1200-MHz IBW
  • AFE7921 — 4-transmit, 4-receive, 2-feedback RF-sampling transceiver, 600-MHz to 6-GHz, max 800-MHz IBW
  • AFE7950 — 4-transmit, 6-receive RF-sampling transceiver, 600-MHz to 12-GHz, max 1200-MHz IBW
  • AFE7988 — 4-transmit, 4-receive, 1-feedback RF-sampling transceiver, 600-MHz to 6-GHz, max 1200-MHz IBW
  • AFE7989 — 4-transmit, 4-receive, 1-feedback RF-sampling transceiver, 600-MHz to 6-GHz, max 400-MHz IBW
  • AFE8092 — 8-transmit, 8-receive RF-sampling transceiver, 600-MHz to 6-GHz, max 1200-MHz IBW
RF transmitters
  • ADS58J63 — Quad Channel 14-bit 500 Msps Telecom Receiver IC
  • ADS58J64 — Quad-channel, 14-bit, 1-GSPS telecom receiver and feedback IC
  • AFE7920 — 4-transmit, 4-receive, 2-feedback RF-sampling transceiver with dual DUC/DDC
Request
Package Pins CAD symbols, footprints & 3D models
FCBGA (ABJ) 400 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos