ASX520
250-3000 MHz MMIC Amplifier
Frequency (MHz)
Magnitude S21 (dB)
1250~1300
25
-14
-12
29
47
6.8
5
650
APPLICATION CIRCUIT
1250 ~ 1300 MHz
+5 V
Magnitude S11 (dB)
Magnitude S22 (dB)
Output P1dB (dBm)
Output IP3 (dBm)
Noise Figure (dB)
Device Voltage (V)
Current (mA)
1)
1) OIP3 is measured with two tones at an output power of +14
dBm/tone separated by 1 MHz.
Schematic
Vcc=5 V
D1=5.6V
Zener Diode
R1=3
W
C7=1
mF
C6=100pF
C5=3 pF
C4=9 pF
L2=100 nH
C1=68 pF
C3=4 pF
L3=1.2 nH
3 mm
RF IN
ASX520
5 mm
L1=82 nH
(Coil Inductor)
C2=68 pF RF OUT
Board Layout (FR4, 40x40 mm , 0.8T)
2
C9=1
mF
C8=100pF
S-parameters & K-factor
30
0
25
-5
20
-10
Gain (dB)
15
S11 (dB)
1100
1200
1300
1400
1500
1600
-15
10
-20
5
0
1000
-25
1000
1100
1200
1300
1400
1500
1600
Frequency (MHz)
0
5
Frequency (MHz)
4
-5
Stability Factor
1100
1200
1300
1400
1500
1600
3
S22 (dB)
-10
2
-15
1
-20
1000
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
9/9
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
February 2010