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AFE5808ZCF.A中文資料

廠家型號(hào)

AFE5808ZCF.A

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1239.69Kbytes

頁(yè)面數(shù)量

75頁(yè)

功能描述

Fully Integrated, 8-Channel Ultrasound Analog Front End With Passive CW Mixer, 0.75 nV/rtHz, 14/12-Bit, 65 MSPS, 153 mW/CH

數(shù)據(jù)手冊(cè)

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生產(chǎn)廠商

TI2

AFE5808ZCF.A數(shù)據(jù)手冊(cè)規(guī)格書(shū)PDF詳情

1FEATURES

? 8-Channel Complete Analog Front-End

– LNA, VCAT, PGA, LPF, ADC, and CW Mixer

? Programmable Gain Low-Noise Amplifier

(LNA)

– 24/18/12 dB Gain

– 0.25/0.5/1 VPP Linear Input Range

– 0.63/0.7/0.9 nV/rtHz Input Referred Noise

– Programmable Active Termination

? 40 dB Low Noise Voltage Controlled

Attenuator (VCAT)

? 24/30 dB Programmable Gain Amplifier (PGA)

? 3rd Order Linear Phase Low-Pass Filter (LPF)

– 10, 15, 20, 30 MHz

? 14-bit Analog to Digital Converter (ADC)

– 77 dBFS SNR at 65 MSPS

– LVDS Outputs

? Noise/Power Optimizations (Full Chain)

– 153 mW/CH at 0.75 nV/rtHz, 65 MSPS

– 98 mW/CH at 1.1 nV/rtHz, 40 MSPS

– 80 mW/CH at CW Mode

? Excellent Device-to-Device Gain Matching

– ±0.5 dB (typical) and ±0.9 dB (max)

? Low Harmonic Distortion

? Fast and Consistent Overload Recovery

? Passive Mixer for Continuous Wave Doppler

(CWD)

– Low Close-in Phase Noise –156 dBc/Hz at 1

KHz off 2.5 MHz Carrier

– Phase Resolution of 1/16λ

– Support 16X, 8X, 4X and 1X CW Clocks

– 12-dB Suppression on 3rd and 5th

Harmonics

– Flexible Input Clocks

? Small Package: 15 mm × 9 mm, 135-BGA

APPLICATIONS

? Medical Ultrasound Imaging

? Nondestructive Evaluation Equipments

DESCRIPTION

The AFE5808 is a highly integrated analog front-end

(AFE) solution specifically designed for ultrasound

systems in which high performance and small size

are required. The AFE5808 integrates a complete

time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also enables

users to select one of various power/noise

combinations to optimize system performance.

Therefore, the AFE5808 is a suitable ultrasound analog front end solution not only for high-end

systems, but also for portable ones.

The AFE5808 contains eight channels of voltage

controlled amplifier (VCA), 14/12-bit Analog-to-Digital

Converter (ADC), and CW mixer. The VCA includes

Low noise Amplifier(LNA), Voltage controlled Attenuator(VCAT), Programmable Gain

Amplifier(PGA), and Low-Pass Filter (LPF). The LNA

gain is programmable to support 250 mVPP to 1 VPP

input signals. Programmable active termination is

also supported by the LNA. The ultra-low noise VCAT

provides an attenuation control range of 40 dB and

improves overall low gain SNR which benefits

harmonic imaging and near field imaging. The PGA

provides gain options of 24 dB and 30 dB. Before the

ADC, a LPF can be configured as 10, 15, 20, or 30

MHz to support ultrasound applications with different

frequencies. The high-performance 14 bit/65 MSPS

ADC in the AFE5808 achieves 77 dBFS SNR. It

ensures excellent SNR at low chain gain. The ADC’s

LVDS outputs enable flexible system integration

desired for miniaturized systems.

更新時(shí)間:2025-9-22 11:03:00
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