ASF240
5-1000 MHz MMIC Amplifier
Frequency (MHz)
Magnitude S21 (dB)
5
26.3
-16
-14
20
37
44
3.6
4.65
95
50
26.5
-17
-20
20
39
47
3.4
4.65
95
200
26.3
-18
-15
20
39
53
3.4
4.65
95
.
APPLICATION CIRCUIT
CATV ( 75 Ohm )
5 ~ 200 MHz
+5 V
Magnitude S11 (dB)
Magnitude S22 (dB)
Output P1dB (dBm)
Output IP3 (dBm)
Output IP2
1),2)
1)
(dBm)
Noise Figure (dB)
Device Voltage (V)
Current (mA)
1) OIP3 and OIP2 are measured with two tones at an output power of +5
dBm/tone separated by 1 MHz.
2) OIP2 is measured at F1+F2 Frequency.
Schematic
Vs=5 V
Board Layout (FR4, 40x40 mm , 0.8T)
2
D1=5.6V
Zener Diode
C4=1
mF
C3=100 pF
L2=33
mH
Ceramic Inductor,
Internal R(L1+L2)=3.6
W
RF IN
C1=0.1
mF
ASF240
L1=33
mH
C2=0.1
mF
RF OUT
R1=8.2
W
S-parameters
30
0
25
-5
Gain (dB)
20
-10
15
S11 (dB)
0
50
100
150
200
250
300
-15
10
-20
5
0
-25
0
50
100
150
200
250
300
Frequency (MHz)
0
Frequency (MHz)
-5
-10
S22 (dB)
-15
-20
-25
-30
0
50
100
150
200
250
300
Frequency (MHz)
6/6
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
September 2011