PM2111G Single Supply RFIC Power Amplifier 800 - 1675 MHz Operation Features >30 dBm Output Power 5V Single 3V to 5V Supply - Class A Operation Linear Class AB Operation (requires -VGG2) 50% Efficiency Unconditionally Stable Applications Wireless Data Collection Cellular & Cordless Telephones Mobile Satellite Communications Description The PM2111G is a two stage high-efficiency GaAs FET RFIC power amplifier designed for wireless applications with 850 MHz to 1650 MHz center frequencies, where greater than 50 MHz bandwidths are achieved using external matching components. In a single supply mode both stages of the PM2111G are inherently biased for (saturated) Class A operation and the current will remain constant, or increase slightly under input power back-off. By applying a negative voltage to VGG2 a more linear, Class AB operation is possible, reducing current consumption when in an idle or backed-off input power mode. Using the PM2111G in this Class AB mode has an advantage over traditional deep depletion mode devices since it does not require two negative supply voltages or sequencing circuits for safe and proper operation. Electrical Characteristics Typical values specified for f = 1675 MHz, VDD= 5.0V, TA = +25C, unless otherwise noted. Minimum and Maximum Specifications are Guaranteed over Frequency and Temperature. Tested in a 50 system using the external circuits shown on page 3. Characteristics Symbol Conditions Typ Min Max Units Frequency Range f 800 1675 MHz Small Signal Gain G 29.0 dB PIN = -10 dBm Input Return Loss RL -15.0 dB Power Output (P1dB) P1dB 29.5 dBm Power Output (saturated) P PIN= +5 dBm,f= 915 MHz 31.0 dBm SAT Power Output (saturated) P PIN= +5 dBm, f = 1675 MHz 29 30.5 dBm SAT Power Added Efficiency PIN= +5 dBm,f= 1675 MHz 40 50 % Drain Current IDD PIN= +5 dBm 500 600 mA Load VSWR for Output Stabilitv VSWR Source VSWR < 1.2: 1 10:1 Thermal Resistance Junction to GND 35 C/W JC Available exclusively from Richardson Electronics, Ltd. - 800-737-6937 (U.S. & Canada) - 630-208-3637 (International) - or visit www.rfwireless.rell.com. See important product notice on last page of this document. Internal Richardson Document Origination Date: Rev: V1 Page 1/5 June 2007 Date: Sep 2009 2008, Richardson Electronics, LTD PM2111G Available exclusively from Richardson Electronics, Ltd. - 800-737-6937 (U.S. & Canada) - 630-208-3637 (International) - or visit www.rfwireless.rell.com. See important product notice on last page of this document. Internal Richardson Document Origination Date: Rev: V1 Page 2/5 June 2007 Date: Sep 2009 2008, Richardson Electronics, LTD