LTC5594 datasheet(10/32 Pages) LINER

Part #	LTC5594

Description	300MHz to 9GHz High Linearity I/Q Demodulator with Wideband IF Amplifier

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC5594

10

5594f

For more information www.linear.com/LTC5594

TYPICAL PERFORMANCE CHARACTERISTICS V

CC = 5V, EN = 3.3V, TC = 25°C, PLO = 6dBm,

HSLO, RF tone spacing = 4MHz, fIF = 30MHz, PIF = –1.5dBm per tone, and register defaults. DC Blocks, 50Ω terminations, and

MACOM H9 180° combiner at amplifier outputs de-embedded from measurement unless otherwise noted. Test circuit shown in

Figure 1 with 1GHz interstage filter.

0

32

64

96 128 160 192 224 256

20

10

0

–10

–20

–30

–40

–50

–60

–70

–80

REGISTER VALUE (INTEGER)

HD2IY, –40°C

HD2IY, 25°C

HD2IY, 85°C

HD2IY, 105°C

HD2IX, –40°C

HD2IX, 25°C

HD2IX, 85°C

HD2IX, 105°C

I-CHANNEL

fRF = 5800MHz

5594 G28

0

32

64

96 128 160 192 224 256

20

10

0

–10

–20

–30

–40

–50

–60

–70

–80

REGISTER VALUE (INTEGER)

HD2QY, –40°C

HD2QY, 25°C

HD2QY, 85°C

HD2QY, 105°C

HD2QX, –40°C

HD2QX, 25°C

HD2QX, 85°C

HD2QX, 105°C

Q-CHANNEL

fRF = 5800MHz

5594 G29

0

1

2

3

4

5

6

7

8

9 10

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

RF FREQUENCY (GHz)

I, –40°C

I, 25°C

I, 85°C

I, 105°C

Q, –40°C

Q, 25°C

Q, 85°C

Q, 105°C

5594 G30

0

1

2

3

4

5

6

7

8

9 10

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

RF FREQUENCY (GHz)

I, –40°C

I, 25°C

I, 85°C

I, 105°C

Q, –40°C

Q, 25°C

Q, 85°C

Q, 105°C

C

OPTIMIZED AT 25°C

5594 G31

0

32

64

96 128 160 192 224 256

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

REGISTER VALUE (INTEGER)

HD3IY, –40°C

HD3IY, 25°C

HD3IY, 85°C

HD3IY, 105°C

HD3IX, –40°C

HD3IX, 25°C

HD3IX, 85°C

HD3IX, 105°C

I-CHANNEL

fRF = 5800MHz

5594 G32

0

32

64

96 128 160 192 224 256

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

REGISTER VALUE (INTEGER)

HD3QY, –40°C

HD3QY, 25°C

HD3QY, 85°C

HD3QY, 105°C

HD3QX, –40°C

HD3QX, 25°C

HD3QX, 85°C

HD3QX, 105°C

Q-CHANNEL

fRF = 5800MHz

5594 G33

0

1

2

3

4

5

6

7

8

9 10

15

14

13

12

11

10

9

8

7

6

5

RF FREQUENCY (GHz)

I

Q

5594 G34

0

1

2

3

4

5

6

7

8

9 10

0

–10

–20

–30

–40

–50

–60

–70

LO FREQUENCY (GHz)

–40°C

25°C

85°C

105°C

5594 G35

0

1

2

3

4

5

6

7

8

9 10

0

–10

–20

–30

–40

–50

–60

–70

LO FREQUENCY (GHz)

–6dBm

0dBm

6dBm

12dBm

5594 G36

HD2 vs Temperature (TC) and

Register Value

Optimized HD3 vs

Temperature (TC)

Output Referred P1dB

HD2 vs Temperature (TC) and

Register Value

HD3 vs Temperature (TC) and

Register Value

Image Rejection vs

Temperature (TC)

HD3 vs Temperature (TC)

HD3 vs Temperature (TC) and

Register Value

Image Rejection vs LO Power

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