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AFE7444

Part Number	AFE7444
Manufacturer	Texas Instruments
Description	RF-sampling AFE
Published	Mar 11, 2020
Detailed Description	Product Folder Order Now Technical Documents Tools & Software Support & Community AFE7444 SLASET0A – OCTOBER 2018 –...
Datasheet	AFE7444 PDF File

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community AFE7444 SLASET0A – OCTOBER 2018 – REVISED JANUARY 2019 AFE7444 Quad-channel, RF-sampling AFE with 14-bit, 9-GSPS DACs and 14-bit, 3-GSPS ADCs 1 Features •1 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 2 Applications • Communications equipment and testers • Wideband digitizers and waveform generators 3 Description The AFE7444 is a quad-channel, wideband, RFsampling analog front end (AFE) based on 14-bit, 9GSPS 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 attenu...

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AFE7444 RF-sampling AFE - Texas Instruments

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