DS069-8 Aug 07

©2007 Reg. No. 227 4001, England

Page 5

Technical Specifications

Electrical Characteristics

Min

Typical

Max

Dimension

Notes

Supply Voltage (Vcc)

4.5

5

5.5

V

Supply Current (Operating)

5.7

6.8

mA

Supply Current (Standby)

100

nA

Receiver Frequency

315.00

433.92

868.35

MHz

R.F Sensitivity (100% AM)

315 ,433MHZ versions

868MHz versions

-103

-100

dBm

3dB Bandwidth

+/-150

KHz

Data Rate

RRFQ1

RRFQ2

300

300

9,600

4,800

Hz

Turn on Time

5

mSecs

1

Turn on Time

8

mSecs

2

Level of Emitted Spectrum

-70

dBm

Low Level Output Voltage

0.8

V

I = 200uA

High Level Output Voltage

Vcc-1

V

I = 200uA

RSSI Output

0.95

mA

Operating Temperature Range

-25

+80

Notes

1.

Time from PD pin going high to stable data. (RRFQ1 only)

2.

Time from Power ON to stable data.

Prototyping Hints

It is essential when building any Low Power Radio System that you have a ‘clean’ DC power source. Typically

the ripple voltage should be less than 10mV Peak to Peak. Normally a 470uF decoupling capacitor is sufficient

de-coupling for an AC derived DC power source. Small capacitors of 10-100nF can also be used across the

power supply to filter high frequency noise.

Never place a Transmitter or Receiver directly into Vero-Board or any similar prototyping board. This will

severely restrict the range. Rather, use small lengths of wire from the prototyping board to the pins of the

Transmitter or Receiver.

A useful antenna, for testing purposes, for both the Transmitter and Receiver on 433MHz is to use a piece of

wire 17.3cm long (23.8cm at 315MHz) soldered directly to the antenna pin.

Data should be encoded before it is transmitted over a wireless link to ensure reliability and reduce the effect of

interference and cross talk. A range of encoders IC’s are available from RF Solutions, please refer to the RF

Solutions website for further information.