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| PRELIMINARY * PERFORMANCE (3.5 GHz) (802.16-2004 WiMAX Modulation) 30 dBm Typical Output Power, < 2.5% EVM 14 dB Typical Small-Signal Gain Class B Efficiency 14% (8V / 720 mA IDQ) > 48 dBm 3rd Order Intercept Point Low total components count FRD3500X230 3.5 GHZ WIMAX REFERENCE DESIGN (1 W) * DESCRIPTION AND APPLICATIONS DEMO BOARD SIZE: 1 x 2 in. (2.54 x 5.08 cm.) CONNECTORIZED VERSION SHOWN The FRD3500X230 is a 2-stage, connectorized Reference Design that delivers a typical linear power of 30 dBm with the 802.16-2004 modulation, while maintaining less than 2.5% EVM. The design features a FPD4000AS driver stage, followed by a FPD10000AF power output stage. Both stages are dual-biased to allow a range of bias conditions on each stage, allowing operation from Class B to Class A. Board layout and components list are included. * ELECTRICAL SPECIFICATIONS AT 22C Parameter Operating Bandwidth Small Signal Gain Gain Flatness Center Frequency (adjustable) Power at 1dB Gain Compression Class A - CW Single Tone Power Gain at dB Gain Compression Class A - CW Single Tone Channel Power with 802.16-2004 2.5% max. EVM Channel Power with 802.16-2004 2.5% max. EVM Power-Added Efficiency 802.16-2004 modulation Operating Current at 30 dBm PCH Nominal Drain Supply Nominal Gate Voltages For Class B Operation Total DC Power (operating) PTOT IOP VDD VGG PCH PCH Eff Class AB Mode VDS = 10 V; IDQ = 1.25 A Class B Mode VDS = 8 V; IDQ = 730 mA typ. Class AB Mode Class B Mode VDD = 8.0 V; VGG = -1.20 / -0.89 V All operating conditions VGG1 (1 Stage) VGG2 (2 Stage) Class B at PCH = 30 dBm nd st Symbol BW SSG G fCEN P1dB G1dB Test Conditions Class A / AB / B Class A: VDS = 10V; IDQ = 1.6 A Class A: VDS = 10V; IDQ = 1.6 A Nominal bias conditions VDS = 10V; IDQ = 1.6 A VDS = 10V; IDQ = 1.6 A Min Typ 200 14 1.5 Max Units MHz dB dB 3.4 3.5 37.5 13 3.6 dBm dB dBm dBm % 31.0 29 31.5 30 10 14 0.9 8 -1.2 -0.89 7.0 A V V V W Phone: +1 408 850-5790 Fax: +1 408 850-5766 http:// www.filtronic.co.uk/semis Revised: 8/10/05 Email: sales@filcsi.com PRELIMINARY FRD3500X230 3.5 GHZ WIMAX REFERENCE DESIGN (1 W) * RECOMMENDED OPERATING BIAS CONDITIONS Drain-Source Voltage: From 8V to 10V Quiescent Current: From 700mA (Class B) to 1.6A (Class A) ABSOLUTE MAXIMUM RATINGS1 Parameter Drain Supply Voltage Gate Supply Voltage Operating Current Gate Current RF Input Power 2 * Symbol VDD VGG IOP IG PIN TCH TSTG PTOT Comp. 3 2 Test Conditions -3V < VGS < +0V 0V < VDD < +8V For VDS > 2V Forward or reverse current Under any acceptable bias state Under any acceptable bias state Non-Operating Storage Ambient temperature to 85C Under any bias conditions 2 or more Max. Limits Min Max 12 -3 1.8 +60/-15 500 175 Units V V A mA mW C C W dB % Channel Operating Temperature Storage Temperature Total Power Dissipation Gain Compression Simultaneous Combination of Limits 1 3 -40 150 12 5 80 Users should avoid exceeding 80% of 2 or more Limits simultaneously TAmbient = 22C unless otherwise noted Max. RF Input Limit must be further limited if input VSWR > 2.5:1 Notes: * Operating conditions that exceed the Absolute Maximum Ratings could result in permanent damage to the devices. * HANDLING PRECAUTIONS To avoid damage to the devices care should be exercised during handling. Proper Electrostatic Discharge (ESD) precautions should be observed at all stages of storage, handling, assembly, and testing. This product has be tested to Class 1A (> 250V but < 500V) using JESD22 A114, Human Body Model, and to Class A, (< 200V) using JESD22 A115, Machine Model.. APPLICATIONS NOTES & DESIGN DATA Recommendations on matching circuits is available from your local Filtronic Sales Representative or directly from the factory. User must ensure that proper bias sequencing is observed: Gate bias must be applied before Drain bias, and during power-down the Drain bias must be removed first. * Phone: +1 408 850-5790 Fax: +1 408 850-5766 http:// www.filtronic.co.uk/semis Revised: 8/10/05 Email: sales@filcsi.com PRELIMINARY * TYPICAL SMALL-SIGNAL PERFORMANCE: FRD3500X230 3.5 GHZ WIMAX REFERENCE DESIGN (1 W) * TYPICAL CLASS AB / B CW PERFORMANCE: Table 2 Linearity under Class AB bias condition Phone: +1 408 850-5790 Fax: +1 408 850-5766 http:// www.filtronic.co.uk/semis Revised: 8/10/05 Email: sales@filcsi.com PRELIMINARY FRD3500X230 3.5 GHZ WIMAX REFERENCE DESIGN (1 W) TYPICAL CLASS A CW PERFORMANCE: Table 1 Power Sweep under Class A bias condition Phone: +1 408 850-5790 Fax: +1 408 850-5766 http:// www.filtronic.co.uk/semis Revised: 8/10/05 Email: sales@filcsi.com PRELIMINARY FRD3500X230 3.5 GHZ WIMAX REFERENCE DESIGN (1 W) All information and specifications are subject to change without notice. Phone: +1 408 850-5790 Fax: +1 408 850-5766 http:// www.filtronic.co.uk/semis Revised: 8/10/05 Email: sales@filcsi.com |
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