ASF255
5-3000 MHz MMIC Amplifier
Frequency (MHz)
Magnitude S21 (dB)
50
18.2
-8
-8
21.5
38
2.5
5
102
1000
18.4
-10
-17
21.5
37
2.6
5
102
2150
18.1
-14
-7
20.0
34
3.0
5
102
APPLICATION CIRCUIT
50 ~ 2150
+5 V
Magnitude S11 (dB)
Magnitude S22 (dB)
Output P1dB (dBm)
Output IP3 (dBm)
Noise Figure (dB)
Supply Voltage (V)
Current (mA)
1)
1) OIP3 is measured with two tones at an output power of +5 dBm/tone separated
by 1 MHz.
Schematic
Vs=5 V
Board Layout (FR4, 40x40 mm , 0.8T)
2
C6=1
mF
C5=100 pF
L1=270 nH
RF IN
C1=1
mF
C2=1
mF
RF OUT
ASF255
C3=1 pF
R1=680
W
C4=1 nF
S-parameters & K-factor
25
0
20
-5
Gain (dB)
15
S11 (dB)
0
500
1000
1500
2000
2500
-10
10
-15
5
0
-20
0
500
1000
1500
2000
2500
Frequency (MHz)
0
Frequency (MHz)
-5
-10
S22 (dB)
-15
-20
-25
-30
0
500
1000
1500
2000
2500
Frequency (MHz)
5/6
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
September 2012
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
