ASL425
200-4000 MHz MMIC Amplifier
Frequency (MHz)
Magnitude S21 (dB)
206.5
37.5
-17
-10
29.5
40
2.4
5
350
APPLICATION CIRCUIT
206.5 MHz
+5 V
Magnitude S11 (dB)
Magnitude S22 (dB)
Output P1dB (dBm)
Output IP3
1)
(dBm)
Noise Figure (dB)
Device Voltage (V)
Current (mA)
1) OIP3 is measured with two tones at an output power of +10 dBm/tone se-
parated by 1 MHz.
Schematic
Board Layout (FR4, 40x40 mm , 0.8T)
Vs=5 V
2
D1=5.6V
Zener Diode
R3=8.2
W
C7=1
mF
C9=1
mF
C5=10 pF
C8=100 pF
C4=18 pF
L5=56 nH
C1=100 pF
L2=47 nH
L4=15 nH
C6=100 pF
L1=120 nH
(Coil Inductor)
L3=18 nH
C2=100 pF
RF OUT
4 mm
C3=27 pF
R2=6.2 kW
RF IN
ASL425
R1=180
W
S-parameters & K-factor
50
0
40
-5
Gain (dB)
30
-10
20
S11 (dB)
0
50
100
150
200
250
300
350
400
-15
10
-20
0
-25
0
50
100
150
200
250
300
350
400
Frequency (MHz)
5
5
Frequency (MHz)
0
4
Stability Factor
0
50
100
150
200
250
300
350
400
-5
3
S22 (dB)
-10
2
-15
1
-20
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
3/11
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
January 2011
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
