ASL20G_13 Datasheet, PDF (9/10 Pages) Advanced Semiconductor Business Inc. – Low Noise GPS, GLONASS, Galileo and Compass Amplifier

ASL20G
Low Noise GPS, GLONASS, Galileo and Compass Amplifier
APPLICATION CIRCUIT
SiriusXM
2338 MHz
+5.0 V, 23 mA
Schematic
RF IN
L1=3.3 nH
*P1
43 2
ASL20G
5
1
6
NC
Hi: ON
Low: OFF (Power Save)
VCTL
C1=0.5 pF
L2=4.7 nH
RF OUT
C3=0.75 pF
C2=0.1 µF
Vsupply
Note: 1) the length of the strip line P1 is given as below at
the PCB with Er = 4.5 and T = 0.8 mm.
P1 Length: 1 mm, Width: 0.3 mm
2) Gain and S11 are in trade-off and varied with the length of P1
Frequency (MHz)
2338
Magnitude S21 (dB)
21
Magnitude S11 (dB)
-10
Magnitude S22 (dB)
-15
Noise Figure (dB)
0.6
Input IP3 (dBm) ¹⁾
-3
Output P1dB( dBm)
3
Supply Current (mA)
23
Supply Voltage (V)
+5.0
Control Current (µA)
300
Control Voltage VCTL (V) +5.0
1) IIP3 is measured with two tones at an input power of -40 dBm
/tone separated by 1MHz
Board Layout (FR4, 20x20 mm², 0.8T)
S-parameters & K-factor
25
0
-5
20
-10
15
-15
10
-20
5
-25
9/10
0
1500
1800
2100
2400
2700
3000
3300
Frequency (MHz)
-30
1500
1800
2100
2400
2700
3000
3300
Frequency (MHz)
0
10
9
-5
8
7
-10
6
5
-15
4
3
-20
2
1
-25
1500
1800
2100
2400
2700
3000
3300
Frequency (MHz)
0
0
500
1000
1500
2000
2500
3000
Frequency [MHz]
ASB Inc. • [e-mail] • Tel: [phone]
September 2013