EVB72006

315MHz FSK/ASK Transmitter

Evaluation Board Description

39012 72006 01

Page 1 of 12

EVB Description

Rev. 004

Dec/07

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

!

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

!

Microcontroller clock output

!

Very low standby current

!

On-chip low voltage detector

!

High over-all frequency accuracy

!

FSK deviation and center frequency indepen-

dently adjustable

!

Adjustable output power range from

-12 dBm to +11 dBm (at 50

Ω)

!

Adjustable current consumption from

3.6 mA to 10.7 mA

!

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

!

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 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.