ASL19H
5-4000 MHz High Linearity LNA MMIC
Frequency (MHz)
Magnitude S21 (dB)
2000
14.5
-20
-13
22
36
1.05
5
73
APPLICATION CIRCUIT
2000 MHz
+5 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 +10 dBm/tone se-
parated by 1 MHz.
Schematic
Board Layout (FR4, 40x40 mm , 0.8T)
Vcc=5 V
R
D
=8.2
W
2
Note: A shunt R
B
is a bias resistor requisite to
operate ASL19H properly, while R
D
as a vol-
tage drop resistor is added to apply 4.4 V to
the device. A user can easily REDUCE an
operating current by choosing different R
B
values with minimized loss only in OIP3 and
P1dB.
RF IN
C1=100 pF
4 mm
ASL19H
D1=5.6V
Zener Diode
C5=10 nF
C4=100 pF
L1=27 nH
C3=100 pF
RF OUT
L2=39 nH
C2=1.5
pF
R
B
=6.2
kW
S-parameters & K-factor
20
0
-5
15
Gain (dB)
-10
10
S11 (dB)
1800
1900
2000
2100
2200
2300
-15
-20
5
-25
0
1700
-30
1700
1800
1900
2000
2100
2200
2300
Frequency (MHz)
0
5
Frequency (MHz)
-5
4
-10
Stability Factor
1800
1900
2000
2100
2200
2300
3
S22 (dB)
-15
2
-20
1
-25
1700
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
6/9
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
December 2010