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ASB Inc.

· sales@asb.co.kr · Tel: +82-42-528-7223

August 2011

ASL563

High Gain, Low Noise Amplifier

1) Total gain is sum of the 1st stage and 2nd stage amplifiers (not include filter loss).

2) NF is that of the 1st stage amplifier.

3) S11 is that of the 1st stage amplifier and S22 is that of the 2nd stage amplifier.

4) OIP3 is that of the 2nd stage amplifier measured with two tones at an output power of +0 dBm/tone separated

by 1MHz.

5) Total current is the sum of the 1st stage and the 2nd stage amplifiers.

Top

Bottom

C1=1 pF

C5=1 pF

VDD2

RF OUT1

RF OUT2

ASL563

L1=5.6 nH

C3=10 nF

C6=2.2 pF

RF IN1

RF IN2

L2=5.6 nH

C4=100 pF

C7=10 nF

L3=3.3 nH

L4=5.6 nH

R4=1.1

k

W

R5=8.2 k

W

R2=1.2

k

W

R1=9.1 k

W

C8=1

mF

C2=1

mF

R3=24

W

R6=27

W

*P1

*P2

VDD1

BPF

Schematic (with the striplines at the Pin 1 and 2)

1st stage S-parameters & K-factor

GPS

1558 ~ 1577 MHz

+3 V

Board Layout (FR4, 19.4x17.4 mm

Note: the length of the strip line P1 and P2 are given as below at the PCB

with Er = 4.5 and T = 0.8 mm.

*P1 Length: 0.5 mm, Width: 0.3 mm

*P2 Length: 2 mm, Width: 0.3 mm

APPLICATION CIRCUIT

(TYPE 2)

Strip lines (P1 & P2)

Parameter

Symbol

Unit

Frequency [MHz]

1558-1577

Power Gain

dB

25

Noise Figure

NF

dB

1.2

Input Return Loss

dB

-14

Output Return Loss

dB

-16

1 dB Gain Compression

Output Power

dBm

11

3

Output Power

1)

OIP3

dBm

18.5

Current

mA

7.7

Device Voltage

V

3

S11

S22

freq (1.300GHz to 1.800GHz)

1300

1400

1500

1600

1700

1800

-40

-30

-20

-10

0

10

20

30

S12

S22

S11

S21

Frequency [MHz]

0

500

1000

1500

2000

2500

3000

3500

0

1

2

3

4

5

Frequency (MHz)