DS0353-9 March ‘05

©2005 Reg. No. 227 4001, ENGLAND

Page 3

TRXQ1

RXQ1

RXQ1 Operating Parameters

Absolute Maximum Ratings

Operating temperature:

-20

Storage temperature:

-40

Supply Voltage

-0.3 to 6V

Data input

-0.3 to Vcc + 0.3v

Electrical Characteristics:

Min.

Typ.

Max.

Units

Notes

DC Levels

Supply voltage

2.7

3

5.25

V

1

Supply current (Transmit Mode)

26

mA

Supply current (Receive Mode)

12

mA

Supply current (Standby Mode)

8

uA

Data input/output high

0.7xVcc

Vcc

V

Data input/output low

0

0.3xVcc

V

RF

Working Frequency

433.92 /

434.33

MHz

Receiver sensitivity

-100

dBm

RF power out (transmitter)

5

dBm

Into 50

Ω

FM Deviation

+/- 15

KHz

IF Bandwidth

65

85

KHz

Harmonic Spurious Emissions

-50

dBc

Operating Temperature

-20

+70

Deg C

Dynamic Timing

Power up to stable receiver data out

5

mS

2

Power up to full RF out

4

mS

2

Standby to RX mode

3

mS

Standby to TX mode

2

mS

Changing from TX to RX mode

3

mS

Changing from RX to TX mode

1

mS

Data Bit rate

20

20,000

bps

Notes

1.

Supply voltage should have <10mV ripple.

RXQ1 Applications

The RXQ1 is a dual band ‘transceiver only’ RF module, which has applications in many areas where reliable

half duplex communications are required over ranges up to 200 metres. The crystal controlled narrow band

design gives optimum performance in the 433 MHz band and the dual channel capability allows for the design

of more complex networks than had previously been possible.