LT5570 datasheet(6/16 Pages) LINER

Part #	LT5570

Description	Fast Responding, 40MHz to 2.7GHz Mean-Squared Power Detector

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Manufacturer	LINER [Linear Technology]

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LT5570

6

5570f

TYPICAL PERFORMANCE CHARACTERISTICS

Linearity Error vs RF Input Power,

2700MHz Modulated Waveforms

Slope vs Frequency

Logarithmic Intercept vs

Frequency

(Test Circuits Shown in Figures 1 and 3)

RF INPUT POWER (dBm)

–45

1

2

3

–25

–5

5570 G10

0

–1

–35

–15

5

15

–2

–3

CW

4CH WCDMA

3CH CDMA2000

TA = 25°C

FREQUENCY (MHz)

0

32

34

36

38

40

42

500

1000

1500

2000

5570 G11

2500

3000

TA = 25°C

FREQUENCY (MHz)

0

–60

–55

–50

–45

–40

–35

500

1000

1500

2000

5570 G12

2500

3000

TA = 25°C

Output Voltage, Linearity Error vs

RF Input Power, 2140MHz

Linearity Error vs RF Input Power,

2140MHz Modulated Waveforms

Output Voltage, Linearity Error vs

RF Input Power, 2700MHz

RF INPUT POWER (dBm)

–45

1.6

2.0

2.4

–25

–5

5570 G07

1.2

0.8

–35

–15

5

15

0.4

0

1

2

3

0

–1

–2

–3

TA = –40°C

TA = 25°C

TA = 85°C

RF INPUT POWER (dBm)

–45

1

2

3

–25

–5

5570 G08

0

–1

–35

–15

5

15

–2

–3

CW

4CH WCDMA

3CH CDMA2000

TA = 25°C

RF INPUT POWER (dBm)

–45

1.6

2.0

2.4

–25

–5

5570 G09

1.2

0.8

–35

–15

5

15

0.4

0

1

2

3

0

–1

–2

–3

TA = –40°C

TA = 25°C

TA = 85°C

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LT5570 Datasheet(PDF) 6 Page - Linear Technology

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