315MHz/433MHz ASK Superheterodyne

Receiver with Extended Dynamic Range

6

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Typical Operating Characteristics

(

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

3.5

3.4

3.3

3.2

3.1

5.0

5.1

5.2

5.3

5.4

5.5

5.6

4.9

3.0

3.6

+105

°C

+85

°C

+25

°C

-40

°C

SUPPLY CURRENT

vs. RF FREQUENCY

RF FREQUENCY (MHz)

450

400

350

300

5.0

5.5

6.0

6.5

7.0

4.5

250

500

+105

°C

+25

°C

+85

°C

-40

°C

100

0.01

-121

-118

-120

-119

-117 -116

-114

BIT-ERROR RATE

vs. AVERAGE RF INPUT POWER

0.1

1

10

AVERAGE INPUT POWER (dBm)

-115

SENSITIVITY vs. TEMPERATURE

TEMPERATURE (

°C)

85

60

-15

10

35

-113

-112

-111

-110

-109

-108

-107

-106

-105

-114

-40

110

PEAK RF INPUT POWER

1% BER

IF BANDWIDTH = 280MHz

RSSI vs. RF INPUT POWER

RF INPUT POWER (dBm)

-20

-40

-60

-80

-100

-120

1.2

1.4

1.6

1.8

2.0

2.2

2.4

1.0

-140

0

IF BANDWIDTH = 280kHz

RSSI AND DELTA

vs. IF INPUT POWER

MAX1473 toc06

IF INPUT POWER (dBm)

-10

-30

-50

-70

1.2

1.4

1.6

1.8

2.0

2.2

2.4

1.0

-2.5

-1.5

-0.5

0.5

1.5

2.5

3.5

-3.5

-90

10

DELTA

RSSI

SYSTEM GAIN vs. FREQUENCY

IF FREQUENCY (MHz)

25

20

15

10

5

-20

-10

0

10

20

30

-30

030

UPPER

SIDEBAND

LOWER

SIDEBAND

FROM RFIN TO

MIXOUT

50dB IMAGE

REJECTION

IMAGE REJECTION

vs. RF FREQUENCY

RF FREQUENCY (MHz)

430

380

330

35

40

45

50

55

30

280

480

IMAGE REJECTION

vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

41

42

42

43

43

44

44

45

45

41

-40

85