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AFE5807ZCF.A中文資料

廠家型號(hào)

AFE5807ZCF.A

文件大小

1235.38Kbytes

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, 1.05 nV/rtHz, 12-Bit, 80 MSPS, 117 mW/CH

數(shù)據(jù)手冊(cè)

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生產(chǎn)廠商

TI2

AFE5807ZCF.A數(shù)據(jù)手冊(cè)規(guī)格書PDF詳情

FEATURES

? 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 IRN (Low Noise Mode)

– 0.99/1.0/1.05 nV/rtHz IRN (Low Power Mode)

– 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

? 12-bit Analog to Digital Converter (ADC)

– 70 dBFS SNR at 80 MSPS

– LVDS Outputs

? Noise/Power Optimizations (Full Chain)

– 117 mW/CH at 1.05 nV/rtHz, 80 MSPS

– 159 mW/CH at 0.75 nV/rtHz, 80 MSPS

– 80 mW/CH at CW Mode

? Excellent Device-to-Device Gain Matching

– ±0.5 dB(typical) and ±1 dB(max)

? Low Harmonic Distortion

? Fast and Consistent Overload Recovery

? Passive Mixer for Continuous Wave onDoppler(

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

– 12dB Suppression on 3rd and 5th Harmonics

– Flexible Input Clocks

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

APPLICATIONS

? Medical Ultrasound Imaging

? Nondestructive Evaluation Equipments

DESCRIPTION

The AFE5807 is an integrated Analog Front-End

(AFE) solution specifically designed for ultrasound

systems in which high performance and small size

are required. The AFE5807 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 AFE5807 is a suitable ultrasound

analog front end solution not only for high-end

systems, but also for portable systems.

The AFE5807 contains eight channels of voltage

controlled amplifier (VCA), 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 MHz, 15 MHz,

20 MHz or 30 MHz to support ultrasound applications

with different frequencies. The high-performance 12

bit/80 MSPS ADC in the AFE5807 achieves 70 dBFS

SNR. It ensures excellent SNR at low chain gain. The

ADC’s LVDS outputs enable flexible system

integration desired for miniaturized systems. The

AFE5807 also integrates a low power passive mixer

and a low noise summing amplifier to accomplish onDoppler(

chip CWD beamformer. 16 selectable phase-delays

can be applied to each analog input signal.

Meanwhile a unique 3rd and 5th order harmonic suppression filter is implemented to enhance CW

sensitivity.

The AFE5807 is available in a 15mm × 9mm, 135-pin

BGA package and it is specified for operation from

0°C to 85°C. It is also pin-to-pin compatible to the

AFE5808, AFE5803, and AFE5808A. In addtion, AFE5809 is another member with enhanced digital

demodulation features in this family.

更新時(shí)間:2025-9-22 11:03:00
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TI/德州儀器
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BGA
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