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
December
2004
ECM168
PHS +34 dBm 10V Module
Product Information
The Communications Edge
TM
Product Features
1.9 GHz Power Amp Module
+34 dBm Linear Output Power
33 dB Gain
Single +10V Supply
No negative voltage required
Low cost metal package
MTTF > 100 Years
Applications
PAS Base Stations
Repeaters
Product Description
The ECM168 is a high performance PAS Amplifier
Module offering excellent linearity. The internally
matched multi-stage amplifier has 33.5 dB gain while
achieving +34 dBm linear output power to meet PHS
requirements of better than -65 dBc ACLR at a 600 kHz
offset from the carrier.
The ECM168 uses a high reliability InGaP/GaAs HBT
process technology and does not require any external
matching components. The module has an added benefit
by not require any negative biasing voltages; an internal
active bias allows the ECM168 to maintain high linearity
over temperature and operate directly off a single +10V
supply. A low-cost metal housing allows the device to
have a low thermal resistance and achieves over 100
years MTTF. All devices are 100% RF and DC tested.
The ECM168 is targeted for use as a driver amplifier in
wireless infrastructure where high linearity and high
power is required. This combination makes the device an
excellent candidate for next generation PAS base
stations.
Functional Diagram
Top View
Pin No.
Function
1 RF
Output
2 Vcc2
3 No
Connect
4 Vcc1
5 No
Connect
6 RF
Input
Case Ground
Specifications
(1)
Parameter
Symbol
Units Min Typ Max Test Conditions
Frequency
f
MHz
1880 - 1920
Power Gain
Ga
dB
32.5
33.5
35.5
Pout = +34 dBm, Vd = 10V
ACLR (600kHz)
Padj1
dBc
-67
-69
-65
Pout = +34 dBm, Vd = 10V
Pout = +33.5 dBm, Vd = 10V
ACLR (900kHz)
Padj2
dBc
-74
-70
Pout = +34 dBm, Vd = 10V
Input VSWR
1.5
Pout = +34 dBm, Vd = 10V
2
nd
Order Harmonic Distortion
2fo
dBc
-50
Pout = +34 dBm, Vd = 10V
3
rd
Order Harmonic Distortion
3fo
dBc
-50
Pout = +34 dBm, Vd = 10V
Supply Voltage
Vcc1, Vcc2
V
+10
Supply Current
Id
mA
1000
1100
1300
1. Test conditions unless otherwise noted: 25 C, Supply Voltage = +10 V, Output Power = +34 dBm, RF signal modulation is per PHS RCR-28.
Absolute Maximum Rating
Ordering Information
Parameter
Rating
Part No.
Description
Operating Case Temperature
-35 to +55
C
ECM168
PHS +34 dBm 10V Module
Storage Temperature
-55 to +150
C
ECM168-PCB
Fully Assembled Evaluation Board
Input RF Power
+10 dBm
Supply Voltage
+12 V
Operation of this device above any of these parameters may cause permanent damage.
1 2 3 4 5 6
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
December
2004
ECM168
PHS +34 dBm 10V Module
Product Information
The Communications Edge
TM
Recommended Application Circuit
Please note that for reliable operation, the evaluation board will have to be mounted to a much larger heat sink during operation and in laboratory
environments to dissipate the power consumed by the device. The use of a convection fan is also recommended in laboratory environments.
Performance Graphs
Gain vs. Channel Power
1900 MHz, PHS Signal, 192 kHz BW
30
31
32
33
34
35
25
27
29
31
33
35
Output Channel Power (dBm)
-35C
25C
55C
ACLR vs. Channel Power
1900 MHz, 600 kHz offset, PHS Signal, 192 kHz BW
-74
-72
-70
-68
-66
-64
25
27
29
31
33
35
Output Channel Power (dBm)
25C
-35C
55C
ACLR vs. Channel Power
1900 MHz, 900 kHz offset, PHS Signal, 192 kHz BW
-78
-76
-74
-72
-70
-68
25
27
29
31
33
35
Output Channel Power (dBm)
25C
-35C
55C
Power Added Efficiency vs. Channel Power
1900 MHz, PHS Signal, 192 kHz BW
0
5
10
15
20
25
30
25
27
29
31
33
35
Output Channel Power (dBm)
-35C
25C
55C
Icc vs. Channel Power
1900 MHz, PHS Signal, 192 kHz BW
900
950
1000
1050
1100
1150
25
27
29
31
33
35
Output Channel Power (dBm)
-35C
25C
55C
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
December
2004
ECM168
PHS +34 dBm 10V Module
Product Information
The Communications Edge
TM
Outline Drawing
PIN ASSIGNMENT
(4) Vcc1, (5) N/C, (6) RFin, Case:GND.
(1) RFout, (2) Vcc2, (3) N/C,
TYPICAL DIMENSIONS ARE IN MM.
NOTE: UNLESS OTHERWISE SPECIFIED
//
A
0.10
A
PCB
Lead 6X
Heat Sink
Cover
1
2
3
4
5
6
Front View
Top View
Side View
4X R=1.2
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