DATA SHEET SKY85402-11: High-Power (+22 dBm) 802.11ac WLAN Power Amplifier with Integrated Power Detector Applications IEEE 802.11ac WLAN enabled: Access points Media gateways Set-top boxes LCD TVs Other broadband triple-play multimedia applications Figure 1. SKY85402-11 Block Diagram Features Description Linear output power for IEEE 802.11ac 256-QAM, EVM < 1.8% = +22 dBm 5.0 V Skyworks SKY85402-11 is a 5 GHz Microwave Monolithic Integrated Circuit (MMIC) power amplifier (PA) with superior High gain: 32 dB output power, linearity, and efficiency. These features make the Power shutdown mode SKY85402-11 ideal for wireless local area network (WLAN IEEE Superior gain flatness 802.11ac) applications. Fully matched at RF input/output ports The device is fabricated using SiGe BiCMOS technology. The device is internally matched and mounted in a 20-pin, 4 x 4 mm Load insensitive power detector Quad Flat No-Lead (QFN) surface-mount technology (SMT) Small footprint QFN (20-pin, 4 x 4 mm) SMT package package, which allows for a highly manufacturable low cost (MSL3, 260 C per JEDEC J-STD-020) solution. A block diagram of the SKY85402-11 is shown in Figure 1. The TM device package and pinout are shown in Figure 2. Signal pin Skyworks Green products are compliant with assignments and functional pin descriptions are described in all applicable legislation and are halogen-free. Table 1. For additional information, refer to Skyworks TM Denition of Green , document number SQ040074. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 202120M Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice January 6, 2021 1 DATA SHEET SKY85402-11: HIGH POWER (+22 dBm) 802.11ac WLAN PA 20 19 18 17 16 N/U 1 15 GND 14 2 GND GND 13 3 RF IN RF OUT 12 4 GND GND 11 5 PA EN GND 6 78 9 10 202120-002 Figure 2. SKY85402-11 Pinout (Top View) Table 1. SKY85402-11 Signal Descriptions Pin Name Description Pin Name Description 1 N/U Not used open circuit 11 GND Ground 2 GND Ground 12 GND Ground 3 RF IN RF input 13 RF OUT Power amplifier RF output 4 GND Ground 14 GND Ground 5 PA EN PA enable 15 GND Ground 6 N/U Not used open circuit 16 GND Ground 7 N/U Not used open circuit 17 GND Ground 8 N/U Not used open circuit 18 VCC3 Third stage supply voltage 9 VCC3 Third stage supply voltage 19 VCC2 Second stage supply voltage 10 VDET Analog power detector output 20 VCC1 First stage supply voltage Technical Description Electrical and Mechanical Specifications The SKY85402-11 PA contains all of the needed RF matching and The absolute maximum ratings of the SKY85402-11 are provided DC biasing circuits. The device also provides an output power in Table 2. Recommended operating conditions are specified in detector voltage. Table 3. Electrical specifications are provided in Tables 4, 5, and 6. The SKY85402-11 is a three-stage, SiGe BiCMOS device optimized for high linearity and power efficiency. These features make the device suitable for wideband digital applications, where PA linearity and power consumption are of critical importance (for example, WiFi systems or WLANs). The device has been characterized with the highest specified data rates for IEEE802.11ac (256 QAM). Under these stringent test conditions, the device exhibits excellent spectral purity and power efficiency. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 202120M Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice January 6, 2021 2 N/U VCC1 N/U VCC2 N/U VCC3 VCC3 GND VDET GND