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AWU6605 датащи(PDF) 5 Page - ANADIGICS, Inc |
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AWU6605 датащи(HTML) 5 Page - ANADIGICS, Inc |
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5 / 13 page ![]() PRELIMINARY DATA SHEET - Rev 1.1 08/2009 AWU6605 5 APPLICATION INFORMATION To ensure proper performance, refer to all related Application Notes on theANADIGICS web site: http://www.anadigics.com Shutdown Mode The power amplifier may be placed in a shutdown mode by applying logic low levels (see Operating Rangestable)totheVENABLE and VMODE1voltages. Bias Modes ThepoweramplifiermaybeplacedineitheraLowBias modeoraHighBiasmodebyapplyingtheappropriate logic level (see Operating Ranges table) to VMODE1. TheBiasControltableliststherecommendedmodes of operation for various applications. VMODE2 is not necessaryforthisPA. Twooperatingmodesareavailabletooptimizecurrent consumption.HighBias/HighPoweroperatingmode isforPOUTlevels>16dBm.Ataround17dBmoutput power,thePAcanbe“ModeSwitched”toMedium/ Low power mode for lowest quiescent current consumption. Table 5: Bias Control (UMTS) APPLICATION POUT LEVELS BIAS MODE VENABLE VMODE1 VCC VBATT UMTS-med/lowpower (LowBiasMode) < +17 dBm Low +2.4 V +2.4 V 3.2 - 4.2 V > 3.2 V UMTS-highpower (HighBiasMode) >+16dBm High +2.4 V 0 V 3.2 - 4.2 V > 3.2 V OptionallowerVCCinlow powermode < +7 dBm Low +2.4 V +2.4 V 1.5 V > 3.2 V Shutdown - Shutdown 0 V 0 V 3.2 - 4.2 V > 3.2 V |
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