Microchip MD1711DB2 Handleiding

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Supertex inc.

Supertex inc.

www.supertex.com

MD1711DB2

Doc.# DSDB-MD1711DB2

B032114

General Description

The MD1711DB2 demoboard is as a ve-level, dual-channel,

+/-100V, 2.0A, return-to-zero pulser. It can directly drive two

50 or 75Ω impedance transducers for 1.0MHz to 20MHz

medical ultrasound imaging or NDT applications.

The MD1711DB2 consists of one MD1711 in a 48-Lead LQFP

package driving six TC6320 complementary high voltage

MOSFET pairs in 8-Lead SOIC packages. The external logic

signal connector, J13, connects all the input control signals of

the MD1711 to the user’s logic control source via a short ribbon

cable. In typical two-, three- or ve-level bipolar pulsing, PW or

CW waveforms can be generated by the proper input control

signal listed below. Jumpers are provided for the output, such

that it can drive either the on-board RC load 220pF capacitor

in parallel with a 1.0KΩ resistor or with an external load of

cable to the user’s ultrasound testing transducer.

Block Diagram

MD1711 + TC6320 Demoboard

Five-Level, Dual Channel ±100V 2.0A RTZ Pulser

Features

►Five-level, dual-channel ultrasound transmitter

►MD1711 driving six TC6320 HV MOSFETs

►Design for RTZ waveforms outputs

►Low second harmonic distortion

►Dual 0 to +/-100V peak to peak voltage supply

►±2.0 A source and sink current capability

►SMA connectors for external clock and signals

►1.8 to 3.3V CMOS logic interface

Applications

►Medical ultrasound imaging

►Ultrasonic NDT inspection

►Piezoelectric transducer drivers

►ATE and waveform generator

►PZT transducer drivers

►Capacitive and MEMS sensor driver

10nF

DV

DD

1

1.0µF

-50V

Supertex

TC6320

V

LL

SEL

EN

AV

SS

DV

SS

AGND

DGND

POSA / POS1A

CLAMPA

NEGA / NEG1A

HVEN1A / POS2A

HVEN2A / NEG2A

POSB / POS1B

CLAMPB

NEGB / NEG1B

HVEN1B/ POS2B

HVEN2B / NEG2B

V

SS

DV

DD

1

V

SS

DV

DD

1

Supertex

MD1711

XDCR-A

Control

Logic

and

Level

Translate

DV

DD

2

AV

DD

1

XDCR-A

1.0µF

1.0µF

1.0µF

1.0µF

1.0µF

1.0µF

1.0µF

+50V

-100V

+100V

-50V

+50V

-100V

+100V

10nF

10nF

10nF

10nF

10nF

10nF

10nF

DV

DD

1

DV

DD

1

DV

DD

2

DV

DD

2

DV

DD

2

DV

DD

2

DV

DD

1

DV

DD

1

Product specificaties