Datasheet > MD2134

MD2134

更新时间： 2024-09-29 14:55:15

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
18页	2094K
描述
The MD2134 is a high-speed source driver for use in a pulsed current waveform generator. This prog

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MD2134 数据手册

MD2134

High-Speed Ultrasound Beamforming Source Driver

Features

General Description

• Multiple-Level Ultrasound Pulser

The MD2134 is a high-speed source driver for a pulsed

current waveform generator. This programmable and

fast arbitrary current level driver is designed for medical

ultrasound imaging beamforming applications. It can

also be used in High-intensity Focused Ultrasound

(HIFU), NDT ultrasound, and other instrument

applications.

• Fast-Switching Current Source for Push-Pull

Topology

• 250 MHz Maximum Frequency, 4 ns Input to

Output Delay

• Fifteen Independent Programmable Output Level

Registers

The MD2134 consists of CMOS digital logic input

circuits, an 8-bit current DAC for aperture weighting

amplitude control, and a programmable 15-level PAM

current-source that does not include a zero level. The

fast current sources are constructed with

current-switch array, controlled by the LV0–LV15

level-register as the waveform data points. Four logic

inputs M[3:0] are used for transmit data level selecting

and transmitting timing control pins. Each level can be

programmed to a resolution of +/–127, including zero

(8-bit) in addition to an 8-bit SPI apodization DAC. The

outputs PA and PB are controlled by M[3:0] pins

directly, as well as the polarity-flip bit S1 in the SPI

per-scan-line fast data updating for dynamically

changing delay time, weighting and waveforms.

• Pulse Amplitude Modulation (PAM) with 8-Bit

Resolution

• 8-Bit Apodization DAC for Peak Output Current

via SPI

• Very Low Second Order Harmonic Distortion

• Picoseconds Time-Jitter from Input to Output

• Fast SPI Write and Read-Back of Level and DAC

Registers

• +5V Power Supply, 2.5V CMOS Logic Interface

• Drives DN2625 MOSFETs Output up to 230V_P-P

• Programmable Aperture Windowing

Applications

• Medical Imaging Ultrasound Beamforming

Transmitter

The MD2134 outputs are designed to drive two very

low-threshold high-voltage depletion N-MOSFETs,

such as Microchip’s DN2625s, as source drivers. The

two DN2625 drains are connected to a center-tap RF

pulse transformer. The transformer’s secondary output

connects to a cable and piezoelectric or capacitive

transducer as a load with a good impedance match.

• Dynamic Focusing B-Scan CW PW Doppler and

FM Chirp

• Ultrasonic Phase Array Focusing Transmitter

• Piezoelectric and Microelectromechanical

Systems (MEMS) Transducer Waveform Drivers

• High-Speed Arbitrary Waveform Generator

• High-Resolution Non-Destructive Testing (NDT)

Phase Array Ultrasound Pulser

Package Type

40-lead QFN

(Top view)

See Table 2-1 for pin information.

 2020 Microchip Technology Inc.

DS20005926A-page 1

12 3 4 5 6 7...18

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与MD2134相关器件

型号	品牌	获取价格	描述	数据表
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
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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
MD215D05E	MPD	获取价格	MD200xE SERIES
MD215D09E	MPD	获取价格	MD200xE SERIES

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