DATA SHEET SKY65900-11: 2.4 to 2.5 GHz +28 dBm WLAN Power Amplifier Applications IEEE 802.11 b/g/n WLANs PA EN ISM band transmitters Detector VDET Wireless access point, routers, gateways Active Bias Inter- Inter- Input Output Matching Stage Stage RF IN RF Output Circuit Features Match Match Match DEVM = 3% for POUT = +28 dBm 5 V 201725-001 VCC1VCC2 VCC3 RFOUT High gain = 34 dB 5 V Internal active-bias circuits Figure 1. SKY65900-11 Block Diagram Internal on/off control circuit Internal load-insensitive power detector Small QFN (16-pin, 4 x 4 mm) package Description (MSL3, 260 C per JEDEC J-STD-020) The SKY65900-11 is a Microwave Monolithic Integrated Circuit (MMIC) Power Amplifier (PA) with superior output power, linearity, and efficiency. These features make the SKY65900-11 ideal for TM Skyworks Green products are compliant with Wireless Local Area Network (WLAN) applications. The high all applicable legislation and are halogen-free. linearity (low EVM) and high efficiency of this device make it ideal For additional information, refer to Skyworks for use in the transmit chain of WLAN access points or modems. TM Denition of Green , document number The SKY65900-11 is fabricated using Skyworks high reliability SQ040074. Heterojunction Bipolar Transistor (HBT) InGaP process, which allows for single supply operation while maintaining high efficiency and good linearity. The device is internally matched at the RF input and mounted in a 16-pin, 4 x 4 mm Quad Flat No- 16 15 14 13 Lead (QFN) surface-mount technology (SMT) package, which 1 12 allows for a highly manufacturable low-cost solution. PA EN GND A functional block diagram is shown in Figure 1. The pin GND 2 11 VCC3 RFOUT configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in 3 10 RF IN VCC3 RFOUT Table 1. 4 9 GND GND 5 6 78 201725-002 Figure 2. SKY65900-11 Pinout (Top View) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201725I Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice February 23, 2017 1 VCC1 GND VDET GND VCC2 GND GND GNDDATA SHEET SKY65900-11: 2.4 to 2.5 GHz +28 dBm WLAN POWER AMPLIFIER 1 Table 1. SKY65900-11 Signal Descriptions Pin Name Description Pin Name Description 1 PA EN Digital enable 9 GND Ground 2 GND Ground 10 VCC3 RFOUT Stage three collector voltage and RF output 3 RF IN RF input 11 VCC3 RFOUT Stage three collector voltage and RF output 4 GND Ground 12 GND Ground 5 VCC1 Stage 1 collector voltage 13 GND Ground 6 VDET Detector voltage 14 GND Ground 7 VCC2 Stage 2 collector voltage 15 GND Ground 8 GND Ground 16 GND Ground 1 The center ground pad must have a low inductance and low thermal resistance connection to the printed circuit board ground plane. Functional Description The SKY65900-11 is a three-stage, HBT InGaP device optimized These features make the device suitable for wideband digital for high linearity and power efficiency. An in-module active bias applications where PA linearity and power consumption are of circuit is included within the device for all three amplifier stages, critical importance (e.g., WLANs). The device has been which provides excellent gain tracking over temperature and characterized with the highest specified data rates for 802.11b voltage variations. (11 Mbps) and 802.11g (54 Mbps). Under these stringent test conditions, the device exhibits excellent spectral purity and power Each stage is supplied using the VCC1 (pin 5), VCC2 (pin 7), and efficiency. VCC3 RFOUT (pins 10 and 11). The Evaluation Board includes shunt decoupling capacitors on these pins to suppress any possible bias effect on the RF signal at low frequencies. Electrical and Mechanical Specifications The SKY65900-11 includes an internal PA enable control pin The absolute maximum ratings of the SKY65900-11 are provided (pin 1) for fast RF on/off control. Zero volts turns off the PA while in Table 2. The recommended operating conditions are specified 1.8 to 3.6 V enables the PA. The device also provides an output in Table 3 and electrical specifications are provided in Table 4. power detector voltage, VDET, at pin 6. Typical performance characteristics for the SKY65900-11 are Pin 3 is the RF input, and pins 10 and 11 are the RF outputs. illustrated in Figures 3 through 9. External DC blocking or RF matching is required on the RF output. Grounding is through several ground pins and the package center ground. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 February 23, 2017 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 201725I