6

6

DS Storm-b May 08

©2008 Reg. No. 227 4001, ENGLAND

Page 6

1.1

Technical Specifications

Absolute Maximum Ratings

Operating temperature:

-10

Storage temperature:

-40

Supply Voltage

11.1 to 25.6V

Data input

±15V (RS232 serial levels)

Electrical Characteristics

Min.

Typ.

Max.

Units

Notes

DC Levels

Supply voltage

11.1

12

25.6

V

1

Supply current (Transmit mode)

11

45

mA

Supply current (Receive mode)

12.5

mA

Supply current (Standby mode)

125

uA

RF

Working frequency

430.0

433.1

440.0

MHz

2

Receiver sensitivity

-100

dBm

Transmitter RF power out

+10

dBm

Frequency deviation

+/- 50

kHz

GFSK Manchester encoded data rate

100

kbps

Dynamic Timing

Power up to stable receiver data out

30

mS

Power up to full RF out

30

mS

Standby to Receive mode

1

mS

Standby to Transmit mode

1

mS

CTS timing

With a standard buffer size of 30 bytes, CTS is asserted 41uS after the buffer is full. In cases

where less than 20 bytes are sent CTS is asserted after a timeout of 10mS.

otes

1.

Supply voltage should have <10mV ripple.

2.

The application operating frequency must be chosen to comply with the Short Range

device regulation in the area of operation.

For more information or general enquiries, please contact

R. F. Solutions Ltd.,

Unit 21, Cliffe Industrial Estate,

South Street,

Lewes,

E Sussex, BN8 6JL. England

Tel +44 (0)1273 898 000

Fax +44 (0)1273 480 661

Email sales@rfsolutions.co.uk

http://www.rfsolutions.co.uk

WEE Disposal: Products supplied from 15

returned at the customers cost to be processed within WEEE regulations. Please clearly labelled “WEEE”

Information contained in this document is believed to be accurate, however no representation or warranty is given and R.F. Solutions Ltd. assumes no liability with respect to the accuracy of such information.

Use of R.F.Solutions as critical components in life support systems is not authorised except with express written approval from R.F.Solutions Ltd.