ASW338
5-4000 MHz MMIC Amplifier
Frequency (MHz)
Magnitude S21 (dB)
900
17.5
-14
-18
26
44
2.0
8
120
APPLICATION CIRCUIT
900 MHz
+8 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 +11
dBm/tone separated by 1 MHz.
Schematic
Vcc=8 V
Board Layout (FR4, 40x40 mm
2
, 0.8T)
C5=1
mF
C4=68 pF
L1=27 nH
RF IN
C1=100 pF
ASW338
C3=100 pF
RF OUT
L2=8.2 nH
C2=1.2 pF
S-parameters & K-factor
25
0
20
-5
Gain (dB)
15
S11 (dB)
700
800
900
1000
1100
1200
-10
10
5
-15
0
600
-20
600
700
800
900
1000
1100
1200
Frequency (MHz)
5
Frequency (MHz)
0
-5
4
-10
Stability Factor
700
800
900
1000
1100
1200
3
S22 (dB)
-15
2
-20
-25
1
-30
600
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
8/10
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
April 2012