EVB72036 Datasheet, PDF (1/12 Pages) Melexis Microelectronic Systems – 868/915MHz FSK/ASK Transmitter Evaluation Board Description

EVB72036
868/915MHz FSK/ASK Transmitter
Evaluation Board Description
Features
! Fully integrated PLL-stabilized VCO
! Frequency range from 850 MHz to 930 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
-11 dBm to +9.5 dBm
! Adjustable current consumption from
5.5 mA to 13.8 mA
! Conforms to EN 300 220 and similar standards
Ordering Information
Part No. (see paragraph 5)
EVB72036-868-FSK-C
EVB72036-915-FSK-C
Note: EVB default population is FSK, ASK modification according to section 3.1.
PRELIMINARY ^{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
Evaluation Board Example
General Description
The TH72036 evaluation board is designed to demonstrate the performance of the transmitter IC for conduc-
tive measurements. The power amplifier is matched to 50 Ohms by means of a π-matching network to oper-
ate at a resonant frequency of 868 and 915 MHz.
The EVB72036 also features a clock output applicable to drive a microcontroller. The clock frequency can be
selected by an external logic signal.
3901272036 01
Rev. 002
Page 1 of 12
EVB Description
June/07