Microchip MD0101DB1 Handleiding

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Supertex inc.

www.supertex.com

MD0101DB1

Doc.# DSDB-MD0101DB1

A063014

General Description

The Supertex MD0101DB1 demoboard contains two MD0101

packages providing eight T/R switches in the system.

This demoboard replaces eight discrete diode bridge

protection circuits. The input of the MD0101DB1 is called

TX, which is connected to the output of the transmitter, and

the output is called RX, which is connected to the input of the

receiver. The clamping diodes are integrated between the

RX and RGND. There is a 0Ω resistor connected between

the RGND and the ground plane of the board. If external

diodes are desired, the 0Ω resistor has to be removed and

the external diodes can then be connected between the R X

and RGND.

The MD0101DB1 is especially layed out so that all inputs are

on one side and all outputs are on the other side of the board.

This provides easy access and replacement on the system

for testing.

This demoboard can be put into the system directly by

removing the diode bridge connections between the transmitter

and receiver.

High Voltage Protection T/R Switch

with Clamp Diodes

Board Layout and Connection Diagram

Actual Size: 22.0mm x 12.0mm

Parameter Value

Vtx-rx 0V to ±100V

IPEAK ±60mA

TON ≤20ns

TOFF ≤20ns

Specications

RX1

RX2

RX3

RX4

RX5

RX6

RX7

RX8

TX1

TX2

TX3

TX4

TX5

TX6

TX7

TX8

SUPERTEX MD0101DB1

Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives

an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability

to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and

specifications are subject to change without notice. For the latest product specifications refer to the Supertex inc. (website: http//www.supertex.com)