AX5043 datasheet(12/47 Pages) ONSEMI

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AX5043

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Table 10. TRANSMITTER

Symbol

Description

Condition

Min

Typ

Max

Units

SBR

Signal bit rate

0.1

125

kbps

PTX

Transmitter power @ 868 MHz

Differential PA, 50 W single

ended measurement at an

SMA connector behind the

matching network, Note 2

−10

dBm

Transmitter power @ 433 MHz

−10

Transmitter power @ 169 MHz

−10

PTXstep

Programming step size output power

Note 1

0.5

dTXtemp

Transmitter power variation vs. tempera-

ture

−40°C to +85°C

Note 2

± 0.5

dTXVdd

Transmitter power variation vs. VDD_IO

1.8 to 3.6 V

Note 2

± 0.5

Padj

Adjacent channel power

GFSK BT = 0.5, 500 Hz deviation,

1.2 kbps, 25 kHz channel spacing,

10 kHz channel BW

868 MHz

−44

dBc

433 MHz

−51

PTX868−harm2

Emission @ 2nd harmonic

868 MHz, Note 2

−40

dBc

PTX868−harm3

Emission @ 3rd harmonic

−60

PTX433−harm2

Emission @ 2nd harmonic

433 MHz, Note 2

−40

dBc

PTX433−harm3

Emission @ 3rd harmonic

−40

1. Pout +

TXPWRCOEFFB

212*1

Pmax

2. 50 W single ended measurements at an SMA connector behind the matching network. For recommended matching networks see

section: Application Information.

Table 11. RECEIVER SENSITIVITIES

The table lists typical input sensitivities (without FEC) in dBm at the SMA connector with the complete matching network for BER=10−3 at

433 or 868 MHz.

Data rate

[kbps]

FSK

h = 0.66

FSK

h = 1

FSK

h = 2

FSK

h = 4

FSK

h = 5

FSK

h = 8

FSK

h = 16

PSK

0.1

Sensitivity [dBm]

−135

−134.5

−132.5

−133

−133.5

−133

−132.5

−138

RX Bandwidth [kHz]

0.2

0.3

0.5

0.6

0.9

2.1

0.2

Deviation [kHz]

0.033

0.05

0.1

0.2

0.25

0.4

0.8

Sensitivity [dBm]

−126

−125

−123

−123.5

−124

−123.5

−122.5

−130

RX Bandwidth [kHz]

1.5

Deviation [kHz]

0.33

0.5

2.5

Sensitivity [dBm]

−117

−116

−113

−114

−113.5

−113

−120

RX Bandwidth [kHz]

110

Deviation [kHz]

3.3

100

Sensitivity [dBm]

−107

−105.5

−109

RX Bandwidth [kHz]

150

200

100

Deviation [kHz]

125

Sensitivity [dBm]

−105

−104

−108

RX Bandwidth [kHz]

187.5

200

125

Deviation [kHz]

42.3

62.5

1. Sensitivities are equivalent for 1010 data streams and PN9 whitened data streams.

2. RX bandwidths < 0.9 kHz cannot be achieved with an 48 MHz TCXO. A 16 MHz TCXO was used for all measurements at 0.1 kbps.

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