DATA SHEET SKY65405-21: 2.4 GHz Low-Noise Amplifier Applications 802.11b/g/n PC cards, NICs, and USB dongles V ENABLE VCC 802.11b/g/n tablets 802.11b/g/n access points, routers, and gateways Bias 2.4 GHz ISM radios 2.4 GHz RF IN Features RF OUT LNA Ultra-low noise figure: 1.1 dB 2.4 to 2.5 GHz operation S1367 Enable/disable mode Figure 1. SKY65405-21 LNA Block Diagram High IIP3: +9 dBm High gain: 15 dB Description 2.8 to 5.0 V single-supply operation The SKY65405-21 is an ultra-low-noise amplifier (LNA) intended DFN (6-pin, 1.5 x 1.5 mm) package for 2.4 GHz wireless receiver applications. Its industry-leading (MSL1, 260 C per JEDEC J-STD-020) noise figure (NF), together with high linearity, makes it ideal as a first-stage LNA in 802.11b/g wireless local area network (WLAN) radios. TM Skyworks Green products are compliant with Operating with a single supply voltage, the SKY65405-21 all applicable legislation and are halogen-free. consumes only 12 mA of current. The device includes a shutdown For additional information, refer to Skyworks TM mode to save power when the receiver is inactive. Denition of Green , document number SQ040074. The tiny package footprint of the SKY65405-21, requiring only four external components, enables the industrys smallest PCB area needed to implement a 2.4 GHz LNA. A block diagram of the SKY65405-21 is shown in Figure 1. The device package and pinout for the 6-pin Dual Flat No-Lead (DFN) are shown in Figure 2. Signal pin assignments and functional pin descriptions are described in Table 1. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201446H Skyworks Proprietary Information Products and Product Information Are Subject To Change Without Notice November 1, 2017 1 DATA SHEET SKY65405-21: LNA V ENABLE 1 6 VCC GND 2 5 GND 3 RF IN 4 RF OUT S1351 Figure 2. SKY65405-21 Pinout (Top View) Table 1. SKY65405-21 Pin Assignments and Signal Descriptions Pin Name Description 1 V ENABLE Enable control input 2 GND Ground 3 RF IN LNA input 4 RF OUT LNA output 5 GND Ground 6 VCC Supply voltage for LNA Technical Description Electrical and Mechanical Specifications The SKY65405-21 is fully 50 matched requiring only a simple The absolute maximum ratings of the SKY65405-21 are provided bypass circuit on pin 6 (VCC). An external resistor on the in Table 2. The recommended operating conditions are specified V ENABLE signal (pin 1) allows a wide range of control voltages in Table 3, and electrical specifications are provided in Table 4. to be used. Shutdown mode is achieved by switching the Table 5 provides the control logic for the SKY65405-21. V ENABLE signal to 0 V. Performance characteristics for the SKY65405-21 are illustrated in Figures 3, 4, and 5. 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 Power into LNA inputs PIN, LNA +2 dBm Operating temperature TA -40 +85 C Storage temperature TSTG -40 +125 C 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. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 November 1, 2017 Skyworks Proprietary Information Products and Product Information Are Subject To Change Without Notice 201446H