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4

Low Noise Amplifier for GPS

PLG01

Products and product information are subject to change without notice. Version 0.3

RF IN

RF OUT

33pF

33pF

33nH

Vdd

6. 8 nH

4. 7 nH

10nF

1 uF

10 uF(Tantal)

1400

1450

1500

1550

1600

1650

1700

1750

1800

0.0

0.5

1.0

1.5

2.0

2.5

3.0

25℃

Frequency (MHz)

NF vs. Frequency

1300

1400

1500

1600

1700

1800

1900

-35

-30

-25

-20

-15

-10

-5

0

25℃

-40℃

85℃

Frequency (MHz)

Input Reurn Loss

1300

1400

1500

1600

1700

1800

1900

-35

-30

-25

-20

-15

-10

-5

0

25℃

-40℃

85℃

Frequency (MHz)

Output Reurn Loss

Input Return Loss

1400

1450

1500

1550

1600

1650

1700

1750

1800

0

5

10

15

20

25ºC

-40ºC

85ºC

Frequency (MHz)

P1dB Vs. Frequency

P1dB vs. Frequency

NF vs. Frequency

1300

1400

1500

1600

1700

1800

1900

10

15

20

25

30

35

40

25ºC

-40ºC

85ºC

Frequency (MHz)

Gain Vs. Frequency

Parameters

Units

Frequency(MHz)

1400

1575

1600

1700

1800

S21

dB

30.4

28.9

28.7

27.8

27.0

S11

dB

-18.2

-20.3

-20.2

-19.6

-18.2

S22

dB

-17.1

-25.6

-26.3

-24.0

-18.2

P1dB

dBm

15.0

14.5

14.5

14.2

13.8

OIP3@-10dBm

dBm

13.4

13.6

13.7

13.6

12.9

NF

dB

1.02

0.92

0.92

0.92

0.90

Typical RF Performance for 1575MHz Tuned Application Circuit (Vdd=3V)

Output Return Loss

Gain vs. Frequency