FM Radio Transmitter & Receiver Modules

T5 / R5

DS305-8

Nov ‘05

©2005 REG No 277 4001, England.

Page 5

Electrical Characteristics: Receiver R5 ‘B’ Parts

Please note that the ‘B’ devices are supplied without can shield.

min.

typ.

Max.

units

notes

DC LEVELS

Supply voltage

4.5

5.0

5.5

Volts

Supply current

6

mA

Supply ripple

-

-

10

Data output high

=>4.0

V

Data output low

<=0.5

V

RF

RF sensitivity

-103

dBm

IF Bandwidth

230

KHz

1

Initial signal accuracy

±22

KHz

Max. RF input

20

dBm

E.M.C

Spurious responses upto 1GHz

<60

dB

LO leakage, conducted

<60

dBm

LO leakage, radiated

<60

dBm

Image Rejection

60

dBm

Dynamic Timings

30

35

mS

20Kbps Part

Power up to stable data

(With RF signal present)

5

7

mS

64Kbps Part

2.5

mS

20Kbps Part

Signal to stable data

(With power supply already on)

1

mS

64Kbps Part

Power up to valid RSSI

(With RF signal present)

1

mS

All Versions

50

6000

uS

20Kbps Part

Data Pulse Widths

(SeeNote 2)

20

700

uS

50Kbps Part

3. IF bandwidth available down to 27KHz

4. The data slicer is optimised for a 50:50 duty cycle, hence for reliable communications data should be

encoded using a suitable scheme such as Manchester Encoding, though pulse width modulation up to

30:70/70:30 can also be utilised.