TH72016
433MHz
FSK/ASK Transmitter
Features
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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
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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
TH72016
Temperature Code
K (-40 °C to 125 °C)
Package Code
LD (10L QFN 3x3 Dual)
Delivery Form
120 pc/tray
5000 pc/T&R
Application Examples
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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
top
FSKDTA
FSKSW
ROI
EN
CKOUT
VCC
VEE
OUT
CKDIV
PSEL
10
9
8
7
6
bottom
1
2
3
4
5
TH72016
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 f
c
is determined by the frequency of the reference crystal f
ref
. 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: f
ref
= f
c
/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
MELEXIS [ Melexis Microelectronic Systems ]
