DATA SHEET SKY65450-92LF: 40 MHz to 1 GHz Broadband 75 CATV Low-Noise Amplifier with Bypass Mode Applications Terrestrial and cable set-top box Cable modem RF Input LNA RF Output Home gateway Personal video recorder (PVR) Digital video recorder (DVR) 203094E-001 Figure 1. SKY65450-92LF Block Diagram Features Small signal gain: 15 dB typical Description Best-in-class linearity The SKY65450-92LF is a Microwave Monolithic Integrated Circuit (MMIC) front-end low-noise amplifier (LNA) designed especially Low noise figure: 2.9 dB typical for set-top box applications. The device provides high linearity, Bypass mode current consumption < 5 mA excellent gain, and best-in-class composite triple beat (CTB) and Input/output impedance internally matched to 75 composite second order (CSO). There are minimal external Minimal number of external components required components. Small 6-pin SC-70 (SC-88, SOT-363) plastic SMT package The SKY65450-92LF is optimized to operate between 40 MHz and 1 GHz, which makes it ideal for cable and terrestrial set-top box and home gateway applications. TM Skyworks Green products are compliant with The SKY65450-92LF is fabricated using SiGe BiCMOS technology. all applicable legislation and are halogen-free. The LNA uses surface-mount technology (SMT) in a 6-pin SC-70 For additional information, refer to Skyworks package. TM Denition of Green , document number A functional block diagram is shown in Figure 1. The pin SQ040074. configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. 6 5 4 12 3 Figure 2. SKY65450-92LF Pinout (Top View) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 203094H Skyworks Proprietary Iinformation Products and Product Information are Subject to Change Without Notice November 14, 2017 1 203094E-002DATA SHEET SKY65450-92LF: 40 MHz TO 1 GHz BROADBAND 75 CATV LNA WITH BYPASS MODE Table 1. SKY65450-92LF Signal Descriptions Pin Name Description Pin Name Description Bypass CTRL (0 = bypass mode, 1 = gain 1 RFOUT RF output 4 Bypass CTRL mode, floating = gain mode) 2 VCC Source voltage 5 GND Ground 3 NC Not connected 6 RFIN RF input Technical Description Electrical and Mechanical Specifications The SKY65450-92LF is a single-stage, low-noise amplifier with a The absolute maximum ratings of the SKY65450-92LF are bypass switch that operates with a single 3.3 V power supply provided in Table 2. The recommended operating conditions are connected through an RF choke (inductor L1) to the output signal specified in Table 3, and electrical specifications are provided in (pin 1). The bias current is set by the R1 external resistor. The Table 4. device is internally RF-matched and only requires input and out blocking capacitors C1 and C2 to operate over a frequency range of 40 MHz to 1 GHz. 1 Table 2. SKY65450-92LF Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units RF input power PIN +20 dBm Supply voltage VCC 1.4 3.6 V Logic high voltage VHIGH VCC V Storage temperature TSTG -55 +125 C Junction temperature TJ +125 C Electrostatic discharge: ESD Human Body Model (HBM), Class 1C 1500 V Charged-Device Model (CDM), Class C3 1500 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 value. 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. SKY65450-92LF Recommended Operating Conditions Parameter Symbol Min Typ Max Units Frequency f 40 1000 MHz Supply 3.1 3.3 3. 5 V Logic high voltage VIH 1.4 VCC V Logic low voltage VIL 0 0.7 V Ambient temperature -40 +85 C Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 November 14, 2017 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 203094H