EVB72006
315MHz FSK/ASK Transmitter
Evaluation Board Description
Features
! 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
! Very low standby current
! On-chip low voltage detector
! High over-all frequency accuracy
! FSK deviation and center frequency indepen-
dently adjustable
! High FSK deviation possible for wideband data
transmission
! ASK achieved by on/off keying of internal
power amplifier up to 40 kbit/s
! Adjustable output power range from
-12 dBm to +11 dBm (at 50 Ω)
! Adjustable current consumption from
3.6 mA to 10.7 mA
! Wide power supply range from 1.95 V to 5.5 V
! Microcontroller clock output
! Conforms to FCC part 15 and similar standards
Ordering Information
Part No. (see paragraph 5)
EVB72006-315-FSK-C
Note: EVB default population is FSK, ASK modification according to section 3.1.
Application Examples
Evaluation Board Example
! 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
General Description
The TH72006 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 315 MHz.
The EVB72006 also features a clock output applicable to drive a microcontroller. The clock frequency can be
selected by an external logic signal.
39012 72006 01
Rev. 004
Page 1 of 12
EVB Description
Dec/07
MELEXIS [ Melexis Microelectronic Systems ]
