ASX420
250-3500 MHz MMIC Amplifier
Frequency (MHz)
698~787
34
-14
-7
30
47
6.5
5
370
APPLICATION CIRCUIT
LTE
698 ~ 787 MHz
+5 V
Magnitude S21 (dB)
Magnitude S11 (dB)
Magnitude S22 (dB)
Output P1dB (dBm)
Output IP3
1)
(dBm)
Noise Figure (dB)
Device Voltage (V)
Current (mA)
1) OIP3 is measured with two tones at an output power of +12 dBm/tone
separated by 1 MHz.
Schematic
Vcc=5 V
D1=5.6V
Zener Diode
C6=1
mF
C5=100pF
C8=1
mF
C7=100pF
RF IN
C1=100 pF
C3=6.8 pF
C4=100 pF
L2=82 nH
1.5 mm
ASX420
Board Layout (FR4, 40x40 mm , 0.8T)
2
R1=3
W
L1=82 nH
(Coil Inductor)
C2=100 pF
RF OUT
9 mm
S-parameters & K-factor
50
0
40
-5
30
-10
S21 [dB]
20
S11 [dB]
500
600
700
800
900
1000
-15
10
-20
0
400
-25
400
500
600
700
800
900
1000
Frequency [MHz]
5
5
Frequency [MHz]
4
0
Stability Factor
500
600
700
800
900
1000
3
S22 [dB]
-5
2
-10
1
-15
400
0
0
500
1000
1500
2000
2500
3000
3500
Frequency [MHz]
Frequency (MHz)
3/12
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
September 2011