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 August 2004
ECM168
PHS +33.5 dBm 10V Module Preliminary Product Information
The Communications Ed
g
e TM
Product Features
• 1.9 GHz Power Amp Module
• +33.5 dBm Linear Output Power
• 33 dB Gain
• Single +10V Supply
• No negative voltage required
• Low cost metal package
• MTTF > 100 Years
Applications
• PHS Base Stations
• Repeaters
Product Description
The ECM168 is a high performance PHS Amplifier
Module offering excellent linearity. The internally
matched multi-stage amplifier has 33 dB gain while
achieving +33.5 dBm linear output power to meet PHS
requirements of better than -65 dBc ACPR 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; only a +10V
supply is needed for proper operation.
The device is ideal for wireless applications and is
available in a low-cost metal housing. This allows the
device to have a low thermal resistance and achieves over
100 years MTTF. All devices are 100% RF and DC
tested.
Functional Diagram
Top View
Pin No. Function
1 RF Output
2 Vcc2
3 No Connect
4 Vcc1
5 No Connect
6 RF Input
Specifications (1)
Parameter Symbol Units Min Typ Max Test Conditions
Frequency f MHz 1880 - 1920
Power Gain Ga dB 33 Pout = +33.5 dBm, Vd = 10V
ACLR (±600kHz) Padj1 dBc -69 -65 Pout = +33.5 dBm, Vd = 10V
ACLR (±900kHz) Padj2 dBc -74 -70 Pout = +33.5 dBm, Vd = 10V
Input VSWR 1.5 2.5 Pout = +33.5 dBm, Vd = 10V
2nd Order Harmonic Distortion 2fo dBc -50 -40 Pout = +33.5 dBm, Vd = 10V
3rd Order Harmonic Distortion 3fo dBc -50 -40 Pout = +33.5 dBm, Vd = 10V
Supply Voltage Vcc1, Vcc2 V +10
Supply Current Id mA 1100
1. Test conditions unless otherwise noted: 25º C, Supply Voltage = +10 V, Output Power = +33.5 dBm, Occupied Channel Bandwidth = 270 kHz.
Absolute Maximum Rating Ordering Information
Parameter Rating Part No. Description
Operating Case Temperature -40 to +85 °C ECM168 PHS +33.5 dBm 10V Module
Storage Temperature -55 to +150 °C
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 August 2004
ECM168
PHS +33.5 dBm 10V Module Preliminary Product Information
The Communications Ed
g
e TM
Recommended Application Circuit
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)
-35°C 25°C 55°C
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)
25°C -35°C 55°C
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)
25°C -35°C 55°C
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)
-35°C 25°C 55°C
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)
-35°C 25°C 55°C
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 August 2004
ECM168
PHS +33.5 dBm 10V Module Preliminary Product Information
The Communications Ed
g
e TM
Outline Drawing
(4) Vcc1, (5) N/C, (6) RFin, Case:GND.
(1) RFout, (2) Vcc2, (3) N/C,
PIN ASSIGNMENT
TYPICAL DIMENSIONS ARE IN INCHES.
NOTE: UNLESS OTHERWISE SPECIFIED
// A0.004
A
4X R=0.047
PCB
Lead 6X
Heat Sink
Cover
123 456
Front View
Top View
Side View
