TH72005

315MHz

FSK/ASK Transmitter

Page 1 of 21

REVISION 012 - JUNE 14, 2017

3901072005

Features and Benefits



Fully integrated PLL-stabilized VCO



Frequency range from 290 MHz to 350 MHz



Single-ended RF output



FSK through crystal pulling allows

modulation from DC to 40 kbit/s



High FSK deviation possible for wideband

data transmission



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



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



10-pin quad flat no lead (QFN) package)

Application Examples



Tire Pressure Monitoring System (TPMS)



Remote Keyless Entry (RKE)



Automatic Meter Reading (AMR)



Alarm and security systems



Garage door openers



Home and building automation



Low-power telemetry



Wireless access control

Pin Description

top view

O UT

VEE

VCC

V EE

PSEL

ENTX

FSKDTA

FSKSW

ROI

ASKDTA

Ordering information

Product Code

Temperature Code

Package Code

Option Code

Packing Form Code

TH72005

K

LD

BAA-000

RE

TH72005

K

LD

BAA-000

TU

Legend:

Temperature Code:

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

Package Code:

LD for QFN double

Packing Form:

RE for Reel, TU for Tube

Ordering example:

TH72005KLD-BAA-000-RE

General Description

The TH72005 FSK/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.

synthesizer ensures that each RF value, ranging from 290 MHz to 350 MHz, can be achieved by using a crystal with a