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AFE5809ZCF Datasheet(PDF) 1 Page - Texas Instruments |
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AFE5809ZCF Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 90 page  SPI LNA VCAT 0 to -40 dB SPI Logic 16X CLKP IN PGA 24, 30dB 3 rd LP Filter 10, 15, 20, 30 MHz 16 Phases Generator CW Mixer Summing Amplifier/ Filter 16X CLKN 1X CLK CW I/Q Vout AFE5809 with Demodulator 1 of 8 Channels 14 Bit ADC LVDS OUT Reference Reference Differential TGC Vcntl EXT/INT REFM/P Digital DeMod & LP Filter LVDS Serializer Logic Control DeMod Control AFE5809 www.ti.com SLOS738C – SEPTEMBER 2012 – REVISED JANUARY 2013 Fully Integrated, 8-Channel Ultrasound Analog Front End with Passive CW Mixer, and Digital I/Q Demodulator, 0.75 nV/rtHz, 14, 12-Bit, 65 MSPS, 158 mW/CH Check for Samples: AFE5809 1 FEATURES • 8-Channel Complete Analog Front-End – <1KHz Frequency Resolution – LNA, VCAT, PGA, LPF, ADC, and CW Mixer – Decimation Filter Factor M = 1 to 64 • Programmable Gain Low-Noise Amplifier – 16xM tap FIR Decimation Filter (LNA) – LVDS Rate Reduction after Demodulation – 24, 18, 12 dB Gain – On-chip RAM with 32 preset Profiles – 0.25, 0.5, 1 VPP Linear Input Range • Low Harmonic Distortion – 0.63, 0.7, 0.9 nV/rtHz Input Referred Noise • Low Frequency Sonar Signal Processing – Programmable Active Termination • Fast and Consistent Overload Recovery • 40 dB Low Noise Voltage Controlled • Passive Mixer for Continuous Wave Attenuator (VCAT) Doppler(CWD) • 24/30 dB Programmable Gain Amplifier (PGA) – Low Close-in Phase Noise –156 dBc/Hz at 1 • 3rd Order Linear Phase Low-Pass Filter (LPF) KHz off 2.5 MHz Carrier – 10, 15, 20, 30 MHz – Phase Resolution of 1/16 λ • 14-bit Analog to Digital Converter (ADC) – Support 16X, 8X, 4X and 1X CW Clocks – 77 dBFS SNR at 65 MSPS – 12dB Suppression on 3rd and 5th Harmonics – LVDS Outputs – Flexible Input Clocks • Noise, Power Optimizations (Without Digital • Small Package: 15 mm x 9 mm, 135-BGA Demodulator) APPLICATIONS – 158 mW/CH at 0.75 nV/rtHz, 65 MSPS • Medical Ultrasound Imaging – 101 mW/CH at 1.1 nV/rtHz, 40 MSPS • Nondestructive Evaluation Equipments – 80 mW/CH at CW Mode • Sonar applications • Excellent Device-to-Device Gain Matching – ±0.5 dB (typical) and ±1 dB (max) • Digital I/Q Demodulator after ADC – Wide Range Demodulation Frequency Figure 1. Block Diagram 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2012–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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