DATA SHEET SKY65404-31: 5 GHz Low-Noise Amplifier Applications 802.11a/n/ac radios V ENABLE VCC 5 GHz ISM radios Smartphones Bias Notebooks, netbooks, and tablets Access points, routers, and gateways 5 GHz Wireless video systems RF IN RF OUT LNA Features 201512-001 Ultra-low noise figure: 1.0 dB Figure 1. SKY65404-31 LNA Block Diagram 4.9 GHz to 5.9 GHz operation Enable/disable mode Description High IIP3: +7 dBm The SKY65404-31 is an ultra-low-noise amplifier (LNA) intended High gain: 13 dB for 5 GHz wireless receiver applications. Its industry-leading noise figure (NF), together with high linearity, makes it ideal as a first- 2.8 to 5.0 V single-supply operation stage LNA in 802.11a wireless local area network (WLAN) radios. QFN (6-pin, 1.5 x 1.5 mm) package Operating with a single supply voltage, the SKY65404-31 (MSL1, 260 C per JEDEC J-STD-020) consumes only 10 mA of current. The device includes a shutdown mode to save power when the receiver is inactive. Skyworks Green products are compliant with The tiny package footprint of the SKY65404-31, requiring only all applicable legislation and are halogen-free. four external components, enables the industrys smallest PCB For additional information, refer to Skyworks area needed to implement a 5 GHz LNA. Denition of Green, document number A block diagram of the SKY65404-31 is shown in Figure 1. The SQ04-0074. device package and pinout for the 6-pin Quad Flat No-Lead (QFN) are shown in Figure 2. Signal pin assignments and functional pin descriptions are described in Table 1. V ENABLE 1 6 VCC GND 5 2 GND RF IN 3 4 RF OUT S1351 Figure 2. SKY65404-31 Pinout (Top View) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201512O Skyworks Proprietary Information Products and Product Information Are Subject To Change Without Notice March 5, 2021 1 DATA SHEET SKY65404-31: 5 GHz LOW-NOISE AMPLIFIER Table 1. SKY65404-31 Pin Assignments and Signal Descriptions Pin Name Description Pin Name Description 1 V ENABLE Enable control input 4 RF OUT LNA output 2 GND Ground 5 GND Ground 3 RF IN LNA input 6 VCC Supply voltage for LNA Technical Description Electrical and Mechanical Specifications The SKY65404-31 is matched at the RF output port (pin 4) and The absolute maximum ratings of the SKY65404-31 are provided requires only a shunt capacitor match at the RF input port (pin 3). in Table 2. The recommended operating conditions are specified The VCC signal (pin 6) requires a simple bypass circuit. An in Table 3 and electrical specifications are provided in Table 4. external resistor on the V ENABLE signal (pin 1) allows a wide Table 5 provides the control logic for the SKY65404-31. range of control voltages to be used. Shutdown mode is achieved Performance characteristics for the SKY65404-31 are illustrated by switching the V ENABLE signal to 0 V. in Figures 3 through 9. 1 Table 2. Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Supply voltage VCC 0 5.5 V DC voltage at control ports VENABLE 0 5.0 V RF input power: RFIN LNA enabled +1 dBm LNA disabled +10 dBm Operating temperature TA -40 +85 C Storage temperature TSTG -40 +125 C Electrostatic discharge: Charged Device Model (CDM), Class 3 500 V Human Body Model (HBM), Class 0 150 V Machine Model (MM), Class A 50 V 1 Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal values. Exceeding any of the limits listed here may result in permanent damage to the device. ESD HANDLING: Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device. This device must be protected at all times from ESD when handling or transporting. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD handling precautions should be used at all times. Table 3. Recommended Operating Conditions ( +25 C, VCC = 3 V) Parameter Symbol Min Typ Max Units Supply voltage VCC 2.8 3.0 5.0 V RF frequency range f 4900 5900 MHz Operating temperature range TA -40 +25 +85 C DC voltage at control port: High VENABLE H 2.5 3.0 3.5 V Low VENABLE L 0 0 0.2 V Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 March 5, 2021 Skyworks Proprietary Information Products and Product Information Are Subject To Change Without Notice 201512O