AH2
High Dynamic Range Amplifier
The Communications Edge TM
Product Information
Single – Ended CATV 75 : Evaluation Circuit: 50 – 860 MHz (AH2-PCB)
Typical RF Performance at 25 qC
Frequency
MHz 100 450 860
S21 – Gain
dB 14.5 14.5 13.2
S11 – Input R.L.
dB -11.1 -12.7 -18.3
S22 – Output R.L.
dB -9.5 -22.9 -10.6
Output IP2
(+5 dBm)
Output IP3
(+5 dBm / tone, 10 MHz spacing)
Noise Figure
dBm 52.7 53.5 52.5
dBm 39.8 40.7 40.8
dB 3.9 3.1 3.2
Device Bias
+5V @ 150mA
CTB
dBc
-71
CSO
dBc
-48
XMOD
dBc
-65
77 channels, 50-550MHz, +34dBmV/channel flat loading
PORT
P=1
Z=75 Ohm
CAP
ID=C1
C=1000 pF
IND
ID=L1
L=12 nH
CAP
+5 V ID=C4
C=1000 pF
IND
ID=L3
L=270 nH
SUBCKT
ID=S1
NET="AH2"
CAP
ID=C3
C=1000 pF
PORT
P=2
Z=75 Ohm
CAP
ID=C2
C=2.2 pF
Circuit Board Material: .062” total thickness with a .028” FR-4 top RF layer, 4 layers (other
layers added for rigidity), 1 oz copper, 75£ Microstrip.
60
50
40
30
20
10
0
0
-40
-50
-60
-70
-80
0
Linearity vs. Frequency
0
-10
OIP3 OIP2
-20
-30
200 400 600 800 1000
0
Frequency (MHz)
CTB, CSO, andXMODVs.Frequency
5
77Channel Flat Loading, +34dBmV/Ch.
CSO
4
3
XMOD
2
CTB
1
0
100 200 300 400 500 600
0
Frequency (MHz)
Input / Output ReturnLoss
Gain
and Isolation
16
15.5
S22
15
14.5
S11
14
S12
200
400
600
800
Frequency (MHz)
13.5
13
1000
0
S21-40C S2125C S2185C
200 400 600 800 1000
Frequency (MHz)
Noise Figure
IP2 and IP3 vs. Power Out at 450 MHz
55
50
IP2 IP3
45
40
35
30
25
200
400
600
800 1000
-4 -2 0 2 4 6 8 10
Frequency (MHz)
Output power (dBm)
Specifications and information are subject to change without notice.
WJ Communications, Inc Phone 1-800-WJ1-4401 FAX: 408-577-6621 e-mail: sales@wj.com Web site: www.wj.com
Page 3 of 5 April 2006