ASL21X
Medium Gain, Low Noise GPS Amplifier
Frequency (MHz)
Magnitude S21 (dB)
1164
21
-11
-12
0.6
1
6.5
13
3.0
300
3.0
1278
21
-18
-12
0.6
1
6
13
3.0
300
3.0
APPLICATION CIRCUIT
1164 ~ 1278 MHz
+3 V / 13 mA
Magnitude S11 (dB)
Magnitude S22 (dB)
Noise Figure (dB)
Input IP3 (dBm)
1)
Output P1dB( dBm)
Supply Current (mA)
Supply Voltage (V)
Control Current (mA)
Control Voltage V
CTL
(V)
1)
IIP3 is measured with two tones at an input power of -30 dBm/tone
separated by 1MHz
Schematic
C1=
0.5 pF
RF IN
L1=12 nH
VCTL
R1=
12
W
Hi: ON
Low: OFF (Power Save)
Board Layout (FR4, 20x20 mm , 0.8T)
2
ASL21X
C2=1.2 pF
RF OUT
L2=7.5 nH
C3=0.1 uF
S-parameters & K-factor
25
Vsupply
0
20
-5
Gain (dB)
S11 (dB)
15
-10
10
-15
5
-20
0
800
1000
1200
1400
1600
1800
-25
800
1000
1200
1400
1600
Frequency (MHz)
0
5
Frequency (MHz)
-5
4
Stability Factor
-10
3
S22 (dB)
-15
2
-20
1
-25
800
0
1000
1200
1400
1600
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
7/14
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
July 2012
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
