ASL552
Wideband Linear Push-pull Amplifier MMIC
Frequency (MHz)
5
16.1
-17
-17
26
35
82
3.1
50
15.7
-15
-15
26
38
79
2.3
8
240
.
200
14.2
-14
-14
26
44
75
2.5
APPLICATION CIRCUIT
CATV Push-Pull
2 : 1 transformer
5 ~ 200 MHz
+8 V
Magnitude S21 (dB)
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 +9 dBm/tone se-
parated by 1 MHz.
2) OIP2 is measured at F1+F2 Frequency.
Schematic
Vs=8 V
Board Layout (FR4, 40x40 mm
2
, 0.8T)
Note: MABA-007681 2:1 impedance transformers
are used.
C4=10 uF
L1=2.2 uH
L2=4.7 uH
L4=15 uH
L3=15 uH
C2=560 pF
L5=4.7 uH
R1=270
W
R2=910
W
C1=10 nF
C3=10 nF
RF OUT
2:1
transformer
RF IN
2:1
transformer
ASL552
C6=560 pF
C5=10 nF
R4=910
W
R3=270
W
C7=10 nF
L8=15 uH
L9=15 uH
L10=4.7 uH
L6=2.2 uH
L7=4.7 uH
C8=10 uF
S-parameters
25
Vs=8 V
0
20
-5
Gain (dB)
15
-10
S11 (dB)
10
-15
5
-20
0
0
50
100
150
200
-25
0
50
100
150
200
Frequency (MHz)
0
Frequency (MHz)
-5
-10
S22 (dB)
-15
-20
-25
0
50
100
150
200
Frequency (MHz)
7/10
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
June 2011
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
