ASL19H
5-4000 MHz High Linearity LNA MMIC
Frequency (MHz)
Magnitude S21 (dB)
2700
11.5
-14
-18
20.5
36
1.4
5
73
APPLICATION CIRCUIT
2700 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
Vcc=5 V
R
D
=8.2
W
Board Layout (FR4, 40x40 mm , 0.8T)
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
2.5 mm
ASL19H
D1=5.6V
Zener Diode
C5=1
mF
C4=100 pF
L1=6.8 nH
C3=100 pF
RF OUT
L2=6.8 nH
C2=1 pF
R
B
=6.2
kW
S-parameters & K-factor
20
0
-5
15
Gain (dB)
-10
10
S11 (dB)
2500
2600
2700
2800
2900
3000
-15
5
-20
0
2400
-25
2400
2500
2600
2700
2800
2900
3000
Frequency (MHz)
0
5
Frequency (MHz)
-5
4
-10
Stability Factor
2500
2600
2700
2800
2900
3000
3
S22 (dB)
-15
2
-20
-25
1
-30
2400
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
8/9
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
December 2010
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
