High-Linearity, 650MHz to 1000MHz Upconversion/

Downconversion Mixer with LO Buffer/Switch

8

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30

20

25

10

15

5

0

RF PORT RETURN LOSS

vs. RF FREQUENCY

RF FREQUENCY (MHz)

750

850

900

800

950

1000

1050

50

35

40

45

30

25

20

15

10

5

0

0

200

100

300

400

500

IF PORT RETURN LOSS

vs. IF FREQUENCY

IF FREQUENCY (MHz)

INCLUDES IF TRANSFORMER

50

35

40

45

30

25

20

15

10

5

0

0

200

100

300

400

500

IF PORT RETURN LOSS

vs. IF FREQUENCY

IF FREQUENCY (MHz)

INCLUDES IF TRANSFORMER

40

35

30

25

20

15

10

5

0

800

900

1000

1100

1200

1300

LO SELECTED RETURN LOSS

vs. LO FREQUENCY

LO FREQUENCY (MHz)

60

40

50

20

30

10

0

800

1300

LO UNSELECTED RETURN LOSS

vs. LO FREQUENCY

LO FREQUENCY (MHz)

1000

900

1100

1200

100

90

80

70

60

-40

10

-15

35

60

85

SUPPLY CURRENT

TEMPERATURE (

°C)

Downconverter Curves

30

40

35

50

45

55

60

800

900

850

950

1000

RF-TO-IF ISOLATION

vs. RF FREQUENCY

RF FREQUENCY (MHz)

°C, -25°C

30

40

35

50

45

55

60

800

900

850

950

1000

RF-TO-IF ISOLATION

vs. RF FREQUENCY

RF FREQUENCY (MHz)

30

40

35

50

45

55

60

800

900

850

950

1000

RF-TO-IF ISOLATION

vs. RF FREQUENCY

RF FREQUENCY (MHz)

Typical Operating Characteristics (continued)

(

Typical Application Circuit, optimized for the 800MHz/900MHz cellular band (see Table 1), C1 = 82pF, C5 = 2pF, L1 and C4 not used,