Specifications

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AX5042

16

SYMBOL

DESCRIPTION

CONDITION

MIN.

TYP.

MAX.

UNIT

SBR

Signal bit rate

ASK, PSK

1

600

kbps

PSK

10

600

FSK, MSK, OQPSK, GFSK, GMSK

1

200

kbps

IL

Maximum input level

-20

dBm

Input referred compression point

2 tones separated by 100 kHz

-35

dBm

IIP3

Input referred IP3

-25

RSSIR

RSSI control range

85

dB

RSSI step size

Before digital channel filter;

calculated from register

AGCCOUNTER

0.625

dB

RSSI step size

Behind digital channel filter;

calculated from registers

AGCCOUNTER, TRKAMPL

0.1

dB

Adjacent channel suppression

FSK 4.8 kbps; notes 1 & 2

22

dB

Alternate channel suppression

22

Adjacent channel suppression

FSK 12.5 kbps ; notes 1 & 3

20

dB

Alternate channel suppression

22

Adjacent channel suppression

FSK 50 kbps; notes 1 & 4

18

dB

Alternate channel suppression

19

Adjacent channel suppression

FSK 100 kbps ; notes 1 & 5

16

dB

Alternate channel suppression

30

Adjacent channel suppression

PSK 200 kbps; notes 1 & 6

17

dB

Alternate channel suppression

28

Blocking at +/- 1MHz offset

FSK 4.8 kbps, notes 2 & 7

43

dB

Blocking at - 2MHz offset

51

Blocking at +/- 10MHz offset

74

Blocking at +/- 100MHz offset

82

Image rejection

25

dB

Notes

1.

PSK200); both channel and interferer are modulated without shaping

2.

FSK 4.8 kbps: 868 MHz, 20kHz channel spacing, 2.4 kHz deviation, programming as recommended in Programming Manual

3.

FSK 12.5 kbps: 868 MHz, 50kHz channel spacing, 6.25 kHz deviation, programming as recommended in Programming Manual

4.

FSK 50 kbps: 868 MHz, 200 kHz channel spacing, 25 kHz deviation, programming as recommended in Programming Manual

5.

FSK 100 kbps: 868 MHz, 400kHz channel spacing, 50 kHz deviation , programming as recommended in Programming Manual

6.

PSK 200 kbps: 868 MHz, 400kHz channel spacing, programming as recommended in Programming Manual, interfering signal is a constant

wave

7.

modulated without shaping, the image frequency lies 2 MHz above the wanted signal