WS1105-SG1

WS1105 CDMA Cell 3x3 Power Amplifier Module (824-849 MHz) Data Sheet Description Features The WS1105 is a CDMA(Code Division Multiple Access) power amplifier module designed for handsets operating in the 824-849MHz bandwidth. x Excellent Linearity The WS1105 features CoolPAM circuit technology that offers state-of-the-art reliability, temperature stability and ruggedness. Digital mode control of CoolPAM reduces current consumption, which enables extended talk time of mobile devices. The WS1105 meets stringent CDMA linearity requirements to and beyond 28dBm output power. The 3mmx3mm form factor 8-pin surface mount package is self contained, incorporating 50ohm input and output matching networks. x 8-pin surface mounting package – 3mmx3mmx1.0mm x Internal 50ohm matching networks for both RF input and output x RoHS Compliant Applications x Wireless Local Loop Vcc1(1) RF Input (2) x High Efficiency – PAE at 28dBm: 41.2% – PAE at 16dBm: 17.7% x Digital CDMA Cellular Functional Block Diagram Input Match x Low quiescent current DA Vcc2(8) Inter Stage Match PA Output Match Bias Circuit & Control Logic MMIC MODULE Vcont(3) Vref(4) RF Output (7) Table 1. Absolute Maximum Ratings [1] Parameter Symbol Min Nominal Max Unit RF Input Power Pin – – 10.0 dBm DC Supply Voltage Vcc 0 3.4 5.0 V Reference Voltage Vref 0 2.85 3.3 V Control Voltage Vcont 0 2.85 3.3 V Storage Temperature Tstg -55 – +125 °C Table 2. Recommended Operating Condition Parameter Symbol Min Nominal Max Unit DC Supply Voltage Vcc 3.2 3.4 4.2 V DC Reference Voltage Vref 2.75 2.85 2.95 V Mode Control Voltage – High Power Mode – Low Power Mode Vcont Vcont 0 2.0 0 2.85 0.5 3.0 V V Operating Frequency Fo 824 849 MHz Ambient Temperature Ta -30 85 °C 25 Table 3. Power Range Truth Table Power Mode Symbol Vref Vcont [2] Range High Power Mode PR2 2.85 Low ~ 28dBm Low Power Mode PR1 2.85 High ~ 16dBm Shut Down Mode – 0 – – Notes: 1. No damage assuming only one parameter is set at limit at a time with all other parameters set at or below nominal value. 2. High (2.0–3.0V), Low (0.0V–0.5V). 2 Table 4. Electrical Characteristics for CDMA Mode (Vcc=3.4V, Vref=2.85V, T=25°C, Zin/Zout=50ohm) Characteristics Symbol Condition Min. Typ. Max. 849 Unit Operating Frequency Range F   824 – Gain Gain_hi High Power Mode, Pout = 28 dBm 24 29.5 dB Gain_low Low Power Mode, Pout = 16 dBm 14 17.5 dB PAE_hi High Power Mode, Pout = 28 dBm 36 41.2 % PAE_ low Low Power Mode, Pout = 16 dBm 13.6 17.7 % Icc_hi High Power Mode, Pout = 28 dBm 450 515 mA Icc_ low Low Power Mode, Pout = 16 dBm 65 85 mA Power Added Efficiency Total Supply Current Quiescent Current MHz Iq_hi High Power Mode 93 125 mA Iq_ low Low Power Mode 13 25 mA Iref_hi High Power Mode, Pout = 28 dBm 2 7 mA Iref_low Low Power Mode, Pout = 16 dBm 3 8 mA Control Current Icont Low Power Mode, Pout = 16 dBm 0.2 1 mA Total Current in Power-down mode Ipd Vref=0V 0.2 5 PA Adjacent Channel Power Ratio 900 kHz offset 1.98 MHz offset ACPR1_hi ACPR2_hi High Power Mode, Pout = 28 dBm -55 -59 -47 -57 dBc dBc 900 kHz offset 1.98 MHz offset ACPR1_ low ACPR2_ low Low Power Mode, Pout = 16 dBm -59 -66 -47 -57 dBc dBc Second Third 2f0 3f0 High Power Mode, Pout = 28 dBm -39 -56 -30 -40 dBc dBc Input VSWR VSWR   2:1 2.5:1 Stability (Spurious Output) S VSWR 6:1, All phase -60 dBc Noise Power in Rx Band RxBN -136.5 -132 dBm/Hz Ruggedness Ru 10:1 VSWR Reference Current Harmonic Suppression 3 No Damage Pout