AFE7444

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Quad-channel RF-sampling AFE with 14-bit 9-GSPS DAC and 3-GSPS ADC without bypass mode

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Product details

Parameters

# of TX/RX 4T4R # of DUCs/TX 2 # of DDCs/RX 2 Data rate (MSPS) 750 Operating temperature range (C) -40 to 85 Applications General Purpose open-in-new Find other RF-sampling transceivers

Package | Pins | Size

FCBGA (ABJ) 400 289 mm² 17 x 17 open-in-new Find other RF-sampling transceivers

Features

  • Four, 14-bit, 9-GSPS DACs
    • Up to 800-MHz signal bandwidth
    • 1 DSA per channel tunes output power
  • Four, 14-Bit, 3-GSPS ADCs
    • Up to 800-MHz signal bandwidth
    • NSD: –151 dBFS/Hz
    • AC performance at fIN = 2.6 GHz, –3 dBFS
      • SNR: 55 dBFS
      • SFDR: 73 dBc HD2 and HD3
      • SFDR: 91 dBc worst spur
    • 2 DSA per channel extends dynamic range
    • RF and digital power detectors
  • RF frequency range: 10 MHz to 6 GHz
  • Fast frequency hopping < 1 µs
  • Receive digital signal path:
    • dual DDC per ADC
    • 3-phase coherent 32-bit NCOs per DDC
    • Decimation ratio: 3x to 32x
  • Transmit digital signal path:
    • Dual DUC per DAC with 32-bit NCOs
    • Interpolation ratio: 8x to 36x
    • Sin(x)/x correction and configurable delay
    • Power amplifier protection (PAP)
  • JESD204B interface:
    • 8 transceivers at up to 15 Gbps
    • Subclass 1 multichip synchronization
  • Clocks:
    • Internal PLL and VCO with bypass option
    • Clock output up to 3 GHz with clock divider
  • DAC power dissipation: 1.7 W/ch at 9 GSPS
  • ADC power dissipation: 1.8 W/ch at 3 GSPS
  • Package: 17-mm x 17-mm FC BGA, 0.8-mm pitch

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Description

The AFE7444 is a quad-channel, wideband, RF-sampling analog front end (AFE) based on 14-bit, 9-GSPS DACs and 14-bit, 3-GSPS ADCs. With operation at an RF of up to 6 GHz, this device enables direct RF sampling into the C-band frequency range without the need for additional frequency conversions stages. This improvement in density and flexibility enables high-channel-count, multimission systems.

The DAC signal paths support interpolation and digital up conversion options that deliver up to 800 MHz of signal bandwidth. The differential output path includes a digital step attenuator (DSA), which enables tuning of output power.

Each ADC input path includes a dual DSA and RF and Digital power detectors. Flexible decimation options provide optimization of data bandwidth.

An 8-lane (8 TX + 8 RX) subclass-1 compliant JESD204B interface operates at up to 15 Gbps. A bypassable on-chip PLL simplifies clock operation with an optional clock output.

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More information

See the full data sheet and other design resources for the AFE7444. Request now

For commercial wireless applications, see our wireless infrastructure RF-sampling AFEs.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet AFE7444 Quad-channel, RF-sampling AFE with 14-bit, 9-GSPS DACs and 14-bit, 3-GSPS ADCs datasheet (Rev. A) Jan. 25, 2019
Application notes AFE74xx Power Dissipation Comparison Across Modes Dec. 07, 2019
Technical articles So, what's a VNA anyway? Aug. 23, 2019
Technical articles So, what's the deal with frequency response? Aug. 23, 2019
Application notes Temp Profile to Maintain Optimum FIT Performance Jul. 23, 2019
Technical articles So, what are S-parameters anyway? May 23, 2019
Technical articles How to achieve fast frequency hopping Mar. 03, 2019
Application notes AFE74xx as a single-chip wideband repeater using loopback mode Jan. 29, 2019
Application notes Evaluating the frequency hopping capability of the AFE74xx Dec. 03, 2018
User guides AFE7444EVM and AFE7422EVM User's Guide Oct. 10, 2018

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The AFE7444 evaluation module (EVM) is an RF-sampling transceiver platform that can be configured to support up to four-transmit and four-receive (4T4R) channels simultaneously. The module evaluates the AFE7444 device, which is a quad-channel RF-sampling analog front end (...)

Features
  • Allows evaluation of 4T4R RF-sampling AFE7444 solutions
  • JESD204B data interface to simplify digital interface; compliant up to 15-Gbps lane rates
  • Supports JESD204B subclass 1 for synchronization and compatibility
  • Option for DC-DC-based LDO-less power-management solution
  • Onboard clocking solution (...)

Reference designs

REFERENCE DESIGNS Download
Multichannel RF transceiver reference design for radar and electronic warfare applications
TIDA-010132 — This reference design, an 8-channel analog front end (AFE), is demonstrated using two AFE7444 4-channel RF transceivers and a LMK04828-LMX2594 based clocking subsystem which can enable designs to scale to 16 or more channels. Each AFE channel consists of a 14-bit, 9-GSPS DAC and a 3-GSPS ADC that is (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Multichannel RF transceiver clocking reference design for RADARs and wireless 5G testers
TIDA-010131 — Analog front end for high-speed end equipments like phased-array radars, wireless communication testers, and electronic warfare require synchronized, multipletransceiver signal chains. Each transceiver signal chain includes high-speed, analog-to-digital converters (ADCs), digital-to-analog (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
(ALK) 400 View options
FCBGA (ABJ) 400 View options

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