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| ECM168 Product Features * 1.9 GHz Power Amp Module * +34 dBm Linear Output Power * 33.5 dB Gain * Single +10V Supply * No negative voltage required * Low cost metal package * MTTF > 100 Years The Communications Edge TM Product Information PHS +34 dBm 10V Module 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's stringent ACLR requirements. 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 1 2 3 4 5 6 Top View Pin No. 1 2 3 4 5 6 Case Function RF Output Vcc2 No Connect Vcc1 No Connect RF Input Ground Applications * PAS Base Stations * Repeaters Specifications (1) Parameter Frequency Power Gain ACLR (600kHz) ACLR (900kHz) Input VSWR 2nd Order Harmonic Distortion 3rd Order Harmonic Distortion Supply Voltage Operating Current Symbol f Ga Padj1 Padj2 2fo 3fo Vcc1, Vcc2 Icc Units MHz dB dBc dBc dBc dBc V mA Min Typ Max 34.8 -64 -70 Test Conditions Pout = +34 dBm, Vd = 10V Pout = +34 dBm, Vd = 10V, See note 2 Pout = +33.5dBm, Vd = 10V Pout = +34 dBm, Vd = 10V Pout = +34 dBm, Vd = 10V Pout = +34 dBm, Vd = 10V Pout = +34 dBm, Vd = 10V Pout = +34 dBm, Vd = 10V 1880 - 1920 32.2 33.5 -67 -69 -74 1.5 -50 -50 +10 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. 2. The actual test limits performed by WJ correspond to an internal maximum ACLR specification of -65 dBc at +34 dBm output power. Absolute Maximum Rating Parameter Operating Case Temperature Storage Temperature Input RF Power Supply Voltage -35 to +55 C -55 to +150 C +10 dBm +12 V Ordering Information Part No. ECM168 ECM168-PCB Rating Description PHS +34 dBm 10V Module Fully Assembled Evaluation Board Operation of this device above any of these parameters may cause permanent damage. 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 1 of 3 March 2005 ECM168 The Communications Edge TM Product Information PHS +34 dBm 10V Module Recommended Application Circuit (ECM168-PCB) NO LOAD Notes: 1. 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. 2. The area around the module underneath the PCB should not contain any soldermask in order to maintain good RF grounding. Outline Drawing PIN ASSIGNMENT (1) RF Out, (2) Vcc, (3) N/C (4) Vcc, (5) N/C, (6) RF In Case: GND MOUNTING SURFACE 2 3 4 5 6 APPLIES TO 6 LEADS AND TO MOUNTING SURFACE. DIMENIONS IN MM 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 2 of 3 March 2005 ECM168 Gain vs. Channel Power 1900 MHz, PHS Signal, 192 kHz BW The Communications Edge TM Product Information PHS +34 dBm 10V Module Performance Graphs ACLR vs. Channel Power 1900 MHz, 600 kHz offset, PHS Signal, 192 kHz BW ACLR vs. Channel Power 1900 MHz, 900 kHz offset, PHS Signal, 192 kHz BW 35 34 33 32 31 -35C 25C 55C -64 25C -66 -68 -70 -72 -74 -35C 55C -68 25C -70 -72 -74 -76 -78 25 27 29 31 33 35 25 27 29 31 33 35 Output Channel Power (dBm) Icc vs. Channel Power 1900 MHz, PHS Signal, 192 kHz BW -35C 55C 30 25 27 29 31 33 35 Output Channel Power (dBm) Output Channel Power (dBm) Power Added Efficiency vs. Channel Power 1900 MHz, PHS Signal, 192 kHz BW 30 25 20 15 10 5 0 25 27 29 31 33 35 -35C 25C 55C 1150 1100 1050 1000 950 -35C 25C 55C 900 25 27 29 31 33 35 Output Channel Power (dBm) Output Channel 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 3 March 2005 |
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