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AFE7901 Datasheet(PDF) 1 Page - Texas Instruments |
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AFE7901 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 160 page  AFE7901 4T4R RF Sampling AFE with 12 GSPS DACs and 3 GSPS ADCs 1 Features • Request full data sheet • Quad RF sampling 12-GSPS transmit DACs • Quad RF sampling 3-GSPS receive ADCs • Maximum RF signal bandwidth per TX or RX: 400 MHz • RF frequency range: 5 MHz - 7.4 GHz • Digital step attenuators (DSA): – TX: 40 dB range, 0.125-dB steps – RX: 25 dB range, 0.5-dB steps • Single or dual-band DUC or DDCs for TX and RX • 16x NCOs per TX or RX • Optional Internal PLL or VCO for DAC or ADC clocks or external clock at DAC or ADC sample rate • Sysref Alignment Detector • 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 2 Applications • Radar • Seeker front end • Defense radio • Tactical communications infrastructure • Wireless communications test 3 Description The AFE7901 is a high performance, wide bandwidth multi-channel transceiver, integrating four RF sampling transmitter chains and four RF sampling receiver chains. With operation up to 7.4 GHz, this device enables direct RF sampling in the L, S and C- 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 400 MHz of signal bandwidth per TX path using a single or dual digital up converter. 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. Package Information PART NUMBER PACKAGE(1) BODY SIZE AFE7901 FC-BGA 17.00 mm × 17.00 mm (1) For more information, see Mechanical, Packaging, and Orderable Information. Buffer SHA ADC Buffer SHA ADC Buffer SHA 1TX+/- ADC Buffer SHA ADC CLKIN+/- SYSREF+/- PLL DAC RX DDC RX DDC DUC DUC DUC DUC RX DDC RX DDC 2TX+/- 3TX+/- 4TX+/- 1RX+/- 2RX+/- 4RX+/- 3RX+/- DAC 1SRX+/- 8SRX+/- 2SRX+/- 3SRX+/- 4SRX+/- 5SRX+/- 6SRX+/- 7SRX+/- 1STX+/- 8STX+/- 2STX+/- 3STX+/- 4STX+/- 5STX+/- 6STX+/- 7STX+/- DAC DSA DSA DSA DSA DSA DSA DSA DSA DAC Functional Block Diagram AFE7901 SBASAO5 – APRIL 2023 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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