ZHX1000

SIR Transceiver

PS015004-0702

D o

no t

use

in

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designs

2

Pin Descriptions

The ZHX1000 SIR transceiver uses the pins listed in Table 1. The pins are

described in this section.

(Power)

Connect to positive power supply (2.4–5.5 V).

Place a .33-

µF ceramic bypass capacitor (optional) as close as possible to the

GND Ground

(Power)

Connect to ground of the power supply. A solid ground plane is recommended for

proper operation.

TAB

(Shield)

The Shield tab must be soldered to the ground plane.

TXD Transmit Data

(Input, active high)

This CMOS input is used to transmit serial data.

Table 1. Pin Out for the ZHX1000 SIR Transceiver

Pin

Name

Function

I/O

1

LEDA

IRED anode

—

2

TXD

Transmitter input

I

3

RXD

Receiver output

O

4

SD

Enables shutdown mode

I

Supply voltage

—

6

GND

Ground

—

—

TAB

Shield ground

—