LT5502 datasheet(4/12 Pages) LINER

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LT5502

RSSI Output Voltage vs VCC

IF Input Sensitivity

vs Temperature

IF Input Sensitivity vs IF Frequency

TYPICAL PERFOR A CE CHARACTERISTICS

LPF Frequency Response

vs Baseband Frequency

LPF Group Delay

vs Baseband Frequency

LPF Frequency Response vs VCC

(Note 3)

IF INPUT POWER (dBm)

–85

5502 G07

–70

–55

–40

–25

–10

1.2

1.0

0.8

0.6

0.4

0.2

fIF = 280MHz

TA = 25°C

VCC = 3V

VCC = 5.5V

VCC = 1.8V

SUPPLY VOLTAGE (V)

1.8

5.5

5502 G08

2.5

3.5

4.5

–73

–75

–77

–79

–81

–83

TA = –40°C

TA = 25°C

TA = 85°C

fIF = 280MHz

IF FREQUENCY (MHz)

–79

–76

5502 G09

–82

–85

150

200

250

300

350

400

100

–73

TA = –40°C

TA = 25°C

VCC = 3V

TA = 85°C

BASEBAND FREQUENCY (MHz)

5502 G10

–5

–10

–15

–20

–25

–30

–35

VCC = 3V

TA = 85°C

TA = –40°C

TA = 25°C

BASEBAND FREQUENCY (MHz)

110

5502 G11

VCC = 3V

TA = 85°C

TA = –40°C

TA = 25°C

BASEBAND FREQUENCY (MHz)

5502 G12

–5

–10

–15

–20

–25

–30

–35

110

VCC = 1.8V, 3V, 5.5V

TA = 25°C

I/Q Output Swing vs IF Input Power

RSSI Output vs Temperature

RSSI Output Voltage vs IF Frequency

IF INPUT POWER (dBm)

–85

5502 G04

–70

–55

–40

–25

–10

1200

1000

800

600

400

200

fIF = 70MHz

fIF = 280MHz

fIF = 400MHz

VCC = 3V

TA = 25°C

IF INPUT POWER (dBm)

–85

5502 G05

–70

–55

–40

–25

–10

1.2

1.0

0.8

0.6

0.4

0.2

TA = –40°C

TA = 85°C

VCC = 3V

fIF = 280MHz

TA = 25°C

IF INPUT POWER (dBm)

–85

5502 G06

–70

–55

–40

–25

–10

1.2

1.0

0.8

0.6

0.4

0.2

fIF = 70MHz

fIF = 280MHz

VCC = 3V

TA = 25°C

fIF = 400MHz

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