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AFE5812

更新时间： 2024-09-19 01:13:39
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AFE5812 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, 180 mW/CH

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AFE5812 数据手册

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Sample &  
Buy  
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Community  
Product  
Folder  
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Software  
Technical  
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AFE5812  
SLOS816A –MARCH 2015–REVISED MARCH 2015  
AFE5812 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, 180 mW/CH  
1 Features  
•
•
Fast and Consistent Overload Recovery  
Passive Mixer for Continuous Wave  
Doppler(CWD)  
1
•
8-Channel Complete Analog Front-End  
LNA, VCAT, PGA, LPF, ADC, and CW Mixer  
Programmable Gain Low-Noise Amplifier (LNA)  
–
–
Low Close-in Phase Noise –156 dBc/Hz at 1  
KHz off 2.5 MHz Carrier  
•
–
–
–
–
24, 18, 15 dB Gain  
–
–
–
Phase Resolution of 1/16λ  
0.25, 0.5, 0.7 VPP Linear Input Range  
0.63, 0.7, 0.9 nV/rtHz Input Referred Noise  
Programmable Active Termination  
Support 16X, 8X, 4X and 1X CW Clocks  
12dB Suppression on 3rd and 5th Harmonics  
•
•
Small Package: 15 mm x 9 mm, 135-BGA  
Operation Temperature: -40°C to 85°C  
•
40 dB Low Noise Voltage Controlled Attenuator  
(VCAT)  
•
•
24/30 dB Programmable Gain Amplifier (PGA)  
3rd Order Linear Phase Low-Pass Filter (LPF)  
2 Applications  
•
•
•
•
Medical Ultrasound Imaging  
–
10, 15, 20, 30, 35, 50 MHz  
14-bit Analog to Digital Converter w/ LVDS output  
77 dBFS SNR at 65 MSPS  
Nondestructive Evaluation Equipments  
Sonar applications  
•
•
–
Multichannel, High-Speed Data Acquisition  
Noise/Power Optimizations (Without Digital  
Demodulator)  
3 Description  
–
–
–
180 mW/CH at 0.75 nV/rtHz, 65 MSPS  
109 mW/CH at 1.1 nV/rtHz, 40 MSPS  
107 mW/CH at CW Mode  
The AFE5812 is a highly-integrated analog front-end  
(AFE) solution specifically designed for ultrasound  
systems in which high performance and small size  
are required. The AFE5812 integrates a complete  
time-gain-control (TGC) imaging path and a CWD  
path. It also enables users to select one of various  
power/noise combinations to optimize system  
performance. Therefore, the AFE5812 is a suitable  
ultrasound AFE solution not only for high-end  
systems, but also for portable ones.  
•
•
Excellent Device-to-Device Gain Matching  
±0.5 dB(typical) and ±1.1 dB(max)  
Programmable Digital I/Q Demodulator after ADC  
–
–
–
–
–
–
–
Wide Range Demodulation Frequency  
<1KHz Frequency Resolution  
Decimation Filter Factor M = 1 to 32  
16xM tap FIR Decimation Filter  
(1)  
Device Information  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
LVDS Rate Reduction after Demodulation  
On-chip RAM with 32 preset Profiles  
AFE5812  
NFBGA (135)  
15.00 mm × 9.00 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
•
•
Low Harmonic Distortion  
Low Frequency Sonar Signal Processing  
4 Simplified Diagram  
AFE5812 with Demodulator : 1 of 8 Channels  
SPI  
SPI Logic  
3rd LP Filter  
10, 15, 20, 30  
35, 50 MHz  
Digital  
Demod &  
Dec Filter  
PGA  
24, 30dB  
VCAT  
0 to -40 dB  
14 Bit  
ADC  
LVDS  
Serializer  
LVDS  
OUT  
IN  
LNA  
16X CLKP  
16X CLKN  
Logic  
Control  
16 Phases  
Generator  
Summing  
Amplifier/ Filter  
CW I/Q Vout  
CW Mixer  
Reference  
Reference  
1X CLK  
DeMod  
Control  
Differential  
TGC Vcntl  
EXT/INT  
REFM/P  
1
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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AFE5828ZAV TI

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AFE5832 TI

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 		具有 42mW/通道功率、LVDS 接口和 CW 无源混频器的 32 通道超声波 AFE
AFE5832LP TI

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