Low-Cost, 900MHz, Low-Noise Amplifier

and Downconverter Mixer

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5

Typical Operating Characteristics (continued)

-12

-6

-8

-10

-4

-2

0

2

4

6

8

60

70

80

90

100

MIXER GAIN vs. IF FREQUENCY

IF FREQUENCY (MHz)

BANDWIDTH DETERMINED BY

DIFFERENTIAL-TO-SINGLE-ENDED

CONVERTER CIRCUIT

GAIN = HIGH

GAIN = LOW

0

2

1

4

3

6

5

7

-15

-10

-5

0

MIXER GAIN vs. LO POWER

LO POWER (dBm)

GAIN = HIGH

GAIN = LOW

10.0

11.5

11.0

10.5

12.0

12.5

13.0

13.5

14.0

14.5

15.0

-15

-10

-5

0

MIXER NOISE FIGURE vs. LO POWER

LO POWER (dBm)

GAIN = HIGH

GAIN = LOW

-15

-12

-13

-14

-10

-11

-6

-7

-8

-9

-5

750

800

850

900

950

1000 1050 1100

LO PORT RETURN LOSS vs. FREQUENCY

FREQUENCY (MHz)