ASX620
250-3000 MHz MMIC Amplifier
Frequency (MHz)
824~849
31.5
-15
-8
32.5
48
6.7
5
950
APPLICATION CIRCUIT
CDMA Rx
824 ~ 849 MHz
+5 V
Magnitude S21 (dB)
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 +15
dBm/tone separated by 1 MHz.
Schematic
Vcc=5 V
D1=5.6V
Zener Diode
R1=3
W
C8=1
mF
C7=100pF
C6=5 pF
C5=100 pF
L2=100 nH
C1=68 pF
C4=9 pF
C2=1.8 pF
L3=2.2 nH
3 mm
RF IN
ASX620
4.5 mm
L1=82 nH
(Coil Inductor)
C3=68 pF RF OUT
Board Layout (FR4, 40x40 mm , 0.8T)
2
C10=1
mF
C9=100pF
S-parameters & K-factor
35
-5
30
-10
Gain (dB)
25
-15
20
S11 (dB)
700
800
900
1000
1100
1200
-20
15
-25
10
600
-30
600
700
800
900
1000
1100
1200
Frequency (MHz)
5
5
Frequency (MHz)
4
0
Stability Factor
3
S22 (dB)
-5
2
-10
1
-15
600
0
700
800
900
1000
1100
1200
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
4/8
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
September 2012
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
