AST163 Datasheet, PDF (6/8 Pages) Advanced Semiconductor Business Inc. – High Gain, Low Noise Amplifier

APPLICATION CIRCUIT
Without strip lines
GPS
1575 MHz
+2.8 V
AST163
High Gain, Low Noise Amplifier
Frequency (MHz)
1575
Magnitude S21 (dB)
14.2
Magnitude S11 (dB)
-10
Magnitude S22 (dB)
-10
Output P1dB (dBm)
10
Output IP3¹⁾ (dBm)
21.2
Input IP3 (dBm)
7
Noise Figure (dB)
1.3
Supply Voltage (V)
2.8
Current (mA)
9.5
1) OIP3 is measured with two tones at an output power of -5 dBm/tone
separated by 1MHz.
Schematic
Board Layout (FR4, 15.3x12 mm², 0.8T)
Top
VDD
C2=10 nF
R1=910 W
RF IN ^{C1=100 pF}
R2=6.2 kW
L1=6.2 nH
AST163
C5=1 nF
R3=680 W
C3=1 uF
L2=6.8 nH
C4=2 pF RF OUT
Bottom
S-parameters & Noise Figure
25
0
20
-5
15
-10
10
-15
5
0
1400
1450
1500
1550 1600 1650
Frequency (MHz)
1700
1750
1800
0
-20
1400
1450
1500
1550 1600 1650
Frequency (MHz)
1700
1750
1800
5
4
-5
3
-10
2
-15
1
-20
1400
1450
1500
1550 1600 1650
Frequency (MHz)
1700
1750
1800
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
6/8
ASB Inc. · [e-mail] · Tel: [phone]
July 2010