TH72002

315MHz

ASK Transmitter

3901072002

Page 1 of 20

Data Sheet

Rev. 010

Jun/12

Features

Fully integrated PLL-stabilized VCO

Frequency range from 290 MHz to 350 MHz

Single-ended RF output

ASK achieved by on/off keying of internal

power amplifier up to 40 kbit/s

Wide power supply range from 1.95 V to 5.5 V

Very low standby current

On-chip low voltage detector

High over-all frequency accuracy

Adjustable output power range from

-12 dBm to +11 dBm

Adjustable current consumption from

3.2 mA to 10.3 mA

Conforms to EN 300 220 and similar standards

8-pin Small Outline Integrated Circuit (SOIC)

Ordering Code

Product Code

Temperature Code

Package Code

Option Code

Packing Form Code

TH72002

K

DC

BAA-000

RE

TH72002

K

DC

BAA-000

TU

Legend:

Temperature Code:

K for Temperature Range -40°C to 125°C

Package Code:

DC for SOIC

Packing Form:

RE for Reel, TU for Tube

Ordering example:

TH72002KDC-BAA-000-RE

Application Examples

Pin Description

General digital data transmission

Tire Pressure Monitoring System (TPMS)

Remote Keyless Entry (RKE)

Low-power telemetry

Alarm and security systems

Garage door openers

Home automation

General Description

The TH72002 ASK transmitter IC is designed for applications in the 315 MHz industrial-scientific-medical

(ISM)

band.

It

can

also

be

used

for

any

other

system

with

carrier

frequencies

ranging

from 290 MHz to 350 MHz.

integrated PLL synthesizer ensures that each RF value, ranging from 290 MHz to 350 MHz, can be achieved

divider ratio.

n. c.

ASKDTA

VEE

ENTX

ROI

VCC

PSEL

OUT

TH72002

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3

4

2

8

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5

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