TH72001

315MHz

FSK Transmitter

3901072001

Page 1 of 20

Data Sheet

Rev. 010

Jun/12

Features

Fully integrated PLL-stabilized LC VCO

Frequency range of 290MHz to 350MHz

Single-ended RF output

FSK through crystal pulling allows modulation

from DC to 40 kbit/s

High FSK deviation possible for wideband data

transmission

Wide power supply range from 2.1 V to 5.5 V

Very low standby current

On-chip low voltage detector

High over-all frequency accuracy

FSK deviation and center frequency

independently adjustable

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

TH72001

K

DC

BAA-000

RE

TH72001

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:

TH72001KDC-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 TH72001 FSK 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

at

290 to 350MHz.

integrated PLL synthesizer ensures that the radio frequency (RF) can be achieved by using a crystal with a

FSKDTA

VEE

ENTX

ROI

FSKSW

VCC

PSEL

OUT

TH72001

1

3

4

2

8

6

5

7