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AWT6622 Datasheet(PDF) 6 Page - ANADIGICS, Inc |
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AWT6622 Datasheet(HTML) 6 Page - ANADIGICS, Inc |
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6 / 11 page  6 Data Sheet - Rev 2.4 01/2012 AWT6622 APPLICATION INFORMATION To ensure proper performance, refer to all related Application Notes on theANADIGICS web site: http://www.anadigics.com Shutdown Mode Thepoweramplifiermaybeplacedinashutdownmode byapplyinglogiclowlevels(seeOperatingRanges table)totheVEN, VMODE1 and VMODE2 voltages. Bias Modes The power amplifier may be placed in either Low, Medium or High Bias modes by applying the appropriatelogiclevel(seeOperatingRangestable) Table 6: Bias Control to the VMODEvoltages.TheBiasControltablebelow liststherecommendedmodesofoperationforvarious applications. Threeoperatingmodesarerecommendedtooptimize currentconsumption.HighBias/HighPoweroperating mode is for POUT levels > 17 dBm. At ~17dBm - 7 dBm,thePAshouldbe“ModeSwitched”toMedium PowerMode.ForPOUTlevels<~8dBm,thePAcanbe switchedtoLowPowerModeforevenlowerquiescent currentconsumption. Figure 3: Evaluation Board Schematic C4 2.2 µF ceramic RFIN 1 6 7 10 8 5 4 3 VBATT VMODE1 RFOUT RFIN GND VCC VEN CPLOUT VCC C1 0.1 µF VBATT VMODE0 VEN CPLIN VMODE1 29 VMODE2 C5 2.2 µF C2 0.1 µF GND at slug CPLIN C6 33 pF CPLOUT RFOUT C3 33 pF APPLICATION POUT LEVELS (Rel.99) BIAS MODE VEN VMODE1 VMODE2 VCC VBATT Lowpower (LowBiasMode) < +8 dBm Low +1.8 V +1.8 V +1.8 V 3.2-4.2V >3.2V Medpower (MediumBiasMode) > 7 dBm < +17 dBm Low +1.8 V +1.8 V 0 V 3.2-4.2V >3.2V Highpower (HighBiasMode) > +17 dBm High +1.8 V 0 V 0 V 3.2-4.2V >3.2V Shutdown - Shutdown 0 V 0 V 0 V 3.2-4.2V >3.2V |
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