EVB72036
868/915MHz FSK/ASK Transmitter
Evaluation Board Description
Features
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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
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Adjustable current consumption from
5.5 mA to 13.8 mA
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Conforms to EN 300 220 and similar standards
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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.
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
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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
MELEXIS [ Melexis Microelectronic Systems ]
