LT5534 datasheet(7/16 Pages) LINER

Part #	LT5534

Description	800MHz to 2.7GHz High Linearity Direct Conversion Quadrature Demodulator

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LT5575

7

5575f

RF INPUT POWER (dBm)

–30

10

12

16

18

20

30

24

–20

–10

–5

14

26

28

22

–25

–15

0

5

10

5575 G21

NOTE 7

2500MHz

900MHz

1900MHz

I/Q Gain Mismatch

vs LO Input Power

I/Q Phase Mismatch

vs LO Input Power

Large-Signal DSB NF

vs RF Input Power

RF Port Return Loss

LO Port Return Loss

Conversion Gain, IIP3, NF

vs Supply Voltage

IIP2 vs Supply Voltage

I/Q Gain Mismatch

vs Supply Voltage

I/Q Phase Mismatch

vs Supply Voltage

TYPICAL AC PERFORMANCE CHARACTERISTICS V

CC = 5V, EN = High, TA = 25ºC, PRF = –10dBm

(–10dBm/tone for 2-tone IIP2 and IIP3 tests), fBB = 1MHz (0.9MHz and 1.1MHz for 2-tone tests), PLO = 0dBm, unless otherwise noted.

Test Circuit Shown in Figure 1 (Notes 6, 7).

LO INPUT POWER (dBm)

–15

–0.3

–0.2

–0.1

0.0

0.1

0.2

0.3

–10

– 5

0

5

5575 G19

fBB = 1MHz

2500MHz

1900MHz

900MHz

LO INPUT POWER (dBm)

–15

–3

–2

–1

0

1

2

3

–10

– 5

0

5

5575 G20

fBB = 1MHz

900MHz

1900MHz

2500MHz

–30

–25

–20

–15

–10

–5

0

800

1100 1400 1700 2000 2300 2600

FREQUENCY (MHz)

5575 G22

LOW BAND;

C10 = 4.7pF

MID BAND;

C10 = 2pF

HIGH BAND;

NO EXTERNAL

COMPONENT

800

1100 1400 1700 2000 2300 2600

FREQUENCY (MHz)

–25

–20

–15

–10

–5

0

5575 G23

LOW BAND; C12 = 3.9pF

MID BAND; C12 = 2.2pF

HIGH BAND;

NO EXTERNAL COMPONENT

RF FREQUENCY (MHz)

15

20

25

5575 G24

10

5

0

35

30

4.75V

5V

5.25V

DSB NF

CONV. GAIN

IIP3

800

1100 1400 1700 2000 2300 2600

800

1100 1400 1700 2000 2300 2600

RF FREQUENCY (MHz)

50

55

60

5575 G25

45

40

70

65

4.75V

5V

5.25V

800

1100 1400 1700 2000 2300 2600

RF FREQUENCY (MHz)

–0.1

0.0

0.1

5575 G26

–0.2

–0.3

0.3

0.2

4.75V

5V

5.25V

RF FREQUENCY (MHz)

–1

0

1

5575 G27

–2

–3

3

2

4.75V

5V

5.25V

800

1100 1400 1700 2000 2300 2600

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