ASL425
200-4000 MHz MMIC Amplifier
Frequency (MHz)
380
35.5
-10
-5
29
45
2.8
5
350
400
35
-10
-6
29
45.5
2.8
5
350
420
34.5
-9
-6
29
46
2.8
5
350
APPLICATION CIRCUIT
TETRA
380 ~ 420 MHz
+5 V
Magnitude S21 (dB)
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 +8 dBm/tone sepa-
rated by 1 MHz.
Schematic
Vcc=5 V
Board Layout (FR4, 40x40 mm , 0.8T)
2
D1=5.6V Zener
Diode
R3=8.2
W
C7=1
mF
C9=1
mF
L4=15 nH
C4=18 pF
C5=12 pF
L1=120 nH
(Coil Inductor)
L3=6.8 nH
C6=100 pF
C8=100 pF
RF IN
L5=100 nH
C1=100 pF
R1=130
W
L2=47 nH
ASL425
4 mm
C2=100 pF
RF OUT
C3=12 pF
R2=6.2 kW
S-parameters & K-factor
50
0
40
-5
Gain (dB)
30
S11 (dB)
0
100
200
300
400
500
600
-10
20
-15
10
0
-20
0
100
200
300
400
500
600
Frequency (MHz)
10
5
Frequency (MHz)
5
4
Stability Factor
0
100
200
300
400
500
600
0
3
S22 (dB)
-5
2
-10
1
-15
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
5/11
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
January 2011
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
