TH72016 Datasheet, PDF(1/16 Page) Melexis Microelectronic Systems

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TH72016 Datasheet, PDF (1/16 Pages) Melexis Microelectronic Systems – 433MHz FSK/ASK Transmitter

TH72016

433MHz

FSK/ASK Transmitter

Features

! Fully integrated PLL-stabilized VCO

! Frequency range from 380 MHz to 450 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

! Microcontroller clock output

! 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 +10 dBm

! Adjustable current consumption from

3.8 mA to 11.0 mA

! Conforms to EN 300 220 and similar standards

! 10-pin Quad Flat No-Lead Package (QFN)

Ordering Information

Part Number

Temperature Code

TH72016

K (-40 Â°C to 125 Â°C)

Package Code

LD (10L QFN 3x3 Dual)

Delivery Form

120 pc/tray

5000 pc/T&R

Application Examples

! General digital data transmission

! Tire Pressure Monitoring Systems (TPMS)

! Remote Keyless Entry (RKE)

! Wireless access control

! Alarm and security systems

! Garage door openers

! Remote Controls

! Home and building automation

! Low-power telemetry systems

Pin Description

FSKDTA

FSKSW

ROI

CKOUT

top

TH72016

VCC

VEE

OUT

CKDIV

PSEL

bottom

General Description

The TH72016 FSK/ASK transmitter IC is designed for applications in the European 433 MHz industrial-

scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard; but it can also be

used in other countries with similar standards, e.g. FCC part 15.231.

The transmitter's carrier frequency fc is determined by the frequency of the reference crystal fref. The inte-

grated PLL synthesizer ensures that carrier frequencies, ranging from 380 MHz to 450 MHz, can be

achieved. This is done by using a crystal with a reference frequency according to: fref = fc/N, where N = 32 is

the PLL feedback divider ratio.

A clock signal with selectable frequency is provided. It can be used to drive a microcontroller.

39010 72016

Rev. 006

Page 1 of 16

Data Sheet

June/07

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