Datasheet > MD1730

MD1730

更新时间： 2024-01-23 12:17:30

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
34页	616K
描述
8-Channel Ultra-Low Phase Noise Continuous Waveform Transmitter with Beamformer

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MD1730 数据手册

MD1730

8-Channel Ultra-Low Phase Noise

Continuous Waveform Transmitter with Beamformer

Features

General Description

• 8-Channel Ultrasound Continuous Waveform

(CW) Transmitter with Integrated Beamformer

The MD1730 is an 8-channel ultra-low phase noise CW

transmitter with integrated beamformer. It is designed

for medical ultrasound imaging systems requiring

high-performance CW Doppler mode. The MD1730

has a dedicated signal path designed to minimize

phase noise to the output. In addition, it has a

high-speed SPI interface that enables CW

beamforming features. The outputs of the MD1730 can

swing up to ±6V and each output has a separate

programmable phase delay. Additionally, by

programming the internal frequency divider register,

the MD1730 can output different CW frequencies from

a single clock source. For instance, when the input

clock frequency is 160 MHz and the frequency divider

is set to 16, an output CW frequency of 5 MHz can be

obtained with a phase delay step size of 6.25 ns, which

translates to an angular resolution of 11.25 degrees.

• CW Output ±1V to ±6Vp-p with Low R_ON

• -160 dbc/Hz Ultra-Low Phase Noise at 1 kHz

Offset and 5 MHz

• 8-Bit Programmable Per-Channel Beamforming

Phase Delay

• 8-Bit Programmable Dividers for CW Frequency

with Input Clock Frequency up to 250 Mhz

• Input Clock Compatible with LVDS/SSTL or

Single-Ended LVCMOS

• LVCMOS 2.5V Logic for the Control I/O pins

• Fast SPI Interface Supports up to 200 MHz

• SPI Interface Supports Daisy Chaining and

Broadcasting Mode

Applications

Package Type

• Medical Ultrasound Imaging System for

Cardiovascular Application

MD1730

6x6x0.9 mm 36-lead VQFN*

• Ultrasound Fetal Heart Monitoring Device

• Ultrasound Flow Meter

• Programmable Array Pattern Generator

36 35 34 33 32 31 30 29 28

CLKP

CLKN

V_LL

CW0

CW1

25 CW2

CW3

GND

V_DD

V_GN

CW4

CW5

SCK

CSN 8

CW6

CW7

SDI

10 11 12 13 14 15 16 17 18

* Includes Exposed Thermal Pad (EP); see Table 3-1.

 2016 Microchip Technology Inc.

DS20005586B-page 1

12 3 4 5 6 7...34

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