Radiometrix Ltd, TX2A/RX2A Data Sheet

page 5

Performance specifications: RX2A

pin

min.

typ.

max

units

notes

DC supply

Supply voltage

5

2.7

5.0

16.0

V

Supply current

5

11

11.6

13

mA

1

RF/ IF

RF sensitivity for 10dB (S+N/N)

1,6

-

-115

-

dBm

10kb/s version

RF sensitivity for 10dB (S+N/N)

1,6

-

-108

-

dBm

64kb/s version

RF sensitivity for 1ppm BER

1,7

-

-108

-

dBm

10kb/s version

RF sensitivity for 1ppm BER

1,7

-

-101

-

dBm

64kb/s version

RSSI range

1,3

-

60

-

dB

IF bandwidth

-

-

180

-

kHz

Image rejection

1

50

53

-

dB

½-IF spurious rejection

1

-

94

-

dB

LO leakage, conducted

1

-

-120

-100

dBm

Baseband

Baseband bandwidth @ -3dB

6

0

-

7.8

kHz

10kb/s version

Baseband bandwidth @ -3dB

6

0

-

50

kHz

64kb/s version

AF level

6

-

500

-

2

DC offset on AF out

6

0.45

1.1

1.75

V

3

Distortion on recovered AF

6

-

1

5

%

3

Ultimate (S+N)/N

6

-

40

-

dB

Load capacitance, AFout/RXD

6,7

-

-

100

pF

DYNAMIC TIMING

Power up with signal present

Power up to valid RSSI

3,5

-

1

-

ms

Power up to stable data

5,7

-

10

30

ms

3, 10kb/s version

Power up to stable data

5,7

-

5

10

ms

3, 64kb/s version

Signal applied with supply on

RSSI response time (rise/fall)

1,3

-

100

-

µs

Signal to stable data

1,7

-

5

30

ms

3, 10kb/s version

Signal to stable data

1,7

-

5

10

ms

3, 64kb/s version

Time between data transitions

7

0.1

-

15

ms

4, 10kb/s version

Time between data transitions

7

15.6

-

1500

µs

4, 64kb/s version

Mark:space ratio

7

20

50

80

%

5

Notes: 1. Current increases at higher RF input levels (>-20dBm and above)

2. For received signal with ±40kHz FM deviation.

3. Typical figures are for signal at centre frequency, max. figures are for ±50kHz offset.

4. For 50:50 mark to space ratio (i.e. square wave).

5. Average over 30ms (10kb/s version) or 3ms (64kb/s version) at maximum data rate.