Datasheet > MD2131

MD2131

更新时间： 2024-09-29 14:54:07

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
18页	819K
描述
The MD2131 is a high-speed, arbitrary waveform, push-pull source driver. It is designed for medica

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MD2131 数据手册

MD2131

High-Speed Ultrasound Beamforming Source Driver

Features

General Description

• High-Resolution Transmitting Waveform

• Up to 3A Push-Pull Source-Driving Current

The MD2131 is a high-speed arbitrary waveform

push-pull source driver. It is designed for phased-array

beamforming applications, such as medical ultrasound

imaging, HIFU, NDT and Sonar.

• 230 V_P-PMaximum Output, uses two DN2625

FETs

The MD2131 consists of CMOS digital logic input

circuits, an 8-bit current DAC for waveform amplitude

control and four PWM current-sources. These current

sources are constructed with the high-speed, in-phase

and quadrature current-switch matrix and the built-in

sine and cosine angle-to-vector lookup table. The

angular resolution of the vector table is 7.5° per step,

with a total range of 48 steps. There are four logic input

signals to control the in-phase and quadrature PWM

push-pull current-source’s output timing, frequency,

cycle in the burst and waveform envelope.

• Angle Vector Beamforming I-Q Switcher Matrix

• 8-bit Apodization DAC and 7.5° Angular

Resolution

• Flexible Frequency-Resolution Trade-Off

• Programmable Aperture Windowing

• 250 MHz Maximum Sampling Rate

• 25 MHz Ultrasound Maximum Frequency

• PWM Modulation Push-Pull Current Source

• Focusing Phase Adjustment and Chirp Waveform

• Fast SPI Interface

The MD2131’s output stage is designed to drive two

DN2625 depletion N-type MOSFETs. The MOSFET

drains are connected to a center-tap ultrasound

frequency pulse transformer. The secondary winding of

the transformer can connect to the ultrasound piezo or

capacitive transducer via a cable with a good

impedance match. The MD2131 has a high-speed,

SPI-compatible interface to achieve per-scan-line fast

updating of the data register for changing the

beamforming phase angles and apodization

amplitudes.

• 2.5V CMOS Logic Interface

• +5V Single Power Supply

• Low Second Order Harmonic Distortions

Applications

• Medical Ultrasound Imaging Transmit

Beamforming

• High-Resolution Non-Destructive Testing (NDT)

and Sonar Phase Arrays

• High-Intensity Focused Ultrasound (HIFU)

Transducer Phase Arrays Beamforming and

Focus Scanning

• Piezoelectric and Miroelectromechanical Systems

(MEMS) Transducer Waveform Drivers

• High-Speed High-Voltage Arbitrary Waveform

Generator

Package Type

40-lead QFN

(Top view)

See Table 2-1 for pin information.

 2018 Microchip Technology Inc.

DS20005925A-page 1

12 3 4 5 6 7...18

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与MD2131相关器件

型号	品牌	获取价格	描述	数据表
MD2131K7-G	SUPERTEX	获取价格	High Speed Ultrasound Beamforming Source Driver
MD2134	MICROCHIP	获取价格	The MD2134 is a high-speed source driver for use in a pulsed current waveform generator. T
MD2134K7-G	SUPERTEX	获取价格	Interface Circuit, 5 X 5 MM, 0.80 MM HEIGHT, 0.40 MM PITCH, GREEN, MO-220WHHE-1, QFN-40
MD2134K7-G	MICROCHIP	获取价格	SPECIALTY INTERFACE CIRCUIT, QCC40
MD2140F60DCA	VANLONG	获取价格	Suitable for surface mount and reflow soldering
MD2140F60HCA	VANLONG	获取价格	Suitable for surface mount and reflow soldering
MD2147/B	INTEL	获取价格	Standard SRAM, 4KX1, 85ns, MOS, CDIP18,
MD2147H	INTEL	获取价格	Standard SRAM, 4KX1, 70ns, MOS, CDIP18,
MD2147H-2	INTEL	获取价格	Standard SRAM, 4KX1, 45ns, MOS, CDIP18
MD215	SITI	获取价格	VCM Driver for Mobile Phone

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