DATA SHEET SKY65452-92LF: 40 MHz to 1 GHz Broadband 75 Ω CATV Low-Noise Amplifier Applications Terrestrial and cable set-top box RF Input Cable modem LNA RF Output Home gateway Personal video recorder (PVR) 203095D-001 Digital video recorder (DVR) Figure 1. SKY65452-92LF Block Diagram Features Description Small signal gain: 15 dB typical Best in Class linearity Low noise figure: 2.9 dB typical Input/output impedance internally matched to 75 Ω Minimal number of external components required The SKY65452-92LF is a Microwave Monolithic Integrated Circuit (MMIC) front-end low-noise amplifier (LNA) designed especially for set-top box applications. The device provides high linearity, excellent gain, and best in class Composite Triple Beat (CTB) and Composite Second Order (CSO). There are minimal external components. Small, 6-pin SC-70 (SC-88, SOT-363) plastic SMT package The SKY65452-92LF 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. Skyworks GreenTM products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of GreenTM, document number SQ04–0074. The SKY65452-92LF is fabricated using SiGe BiCMOS technology. The LNA uses surface-mount technology (SMT) in a 6-pin SC-70 package. 5 4 203095D-002 6 A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. 1 2 3 Figure 2. SKY65452-92LF Pinout (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203095E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 18, 2016 1 DATA SHEET • SKY65452-92LF: 40 MHz TO 1 GHz BROADBAND 75 Ω CATV LNA Table 1. SKY65452-92LF Signal Descriptions Pin Name Description 1 RFOUT 2 VCC Source voltage 3 NC Not connected Pin RF output 4 Name Description N/C Not connected 5 GND Ground 6 RFIN RF input Technical Description Electrical and Mechanical Specifications The SKY65452-92LF is a single-stage, low-noise amplifier with a bypass switch that operates with a single 3.3 V power supply connected through an RF choke (inductor L1) to the output signal (pin 1). The bias current is set by the R1 external resistor. The 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. The absolute maximum ratings of the SKY65452-92LF are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Table 2. SKY65452-92LF Absolute Maximum Ratings1 Parameter Symbol RF input power PIN Supply voltage VCC Logic high voltage VHIGH Storage temperature TSTG Junction temperature TJ Electrostatic discharge: ESD Minimum 1.4 –55 Human Body Model (HBM), Class 1C Charged-Device Model (CDM), Class C3 Maximum Units 20 dBm 3.6 V VCC V +125 C +125 C 1500 1500 V 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. CAUTION: 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. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Table 3. SKY65452-92LF Recommended Operating Conditions Parameter Frequency Symbol f Supply Minimum Typical 40 3.1 3.3 Maximum Units 1000 MHz 3. 5 V Logic high voltage VIH 1.4 VCC V Logic low voltage VIL 0 0.7 V –40 +85 C Ambient temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 February 18, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 203095E DATA SHEET • SKY65452-92LF: 40 MHz TO 1 GHz BROADBAND 75 Ω CATV LNA Table 4. SKY65452-92LF Electrical Specifications1 (VCC = 3.3 V, Bypass Control = 3.3 V, TC = +25 °C, f = 500 MHz, PIN = –15 dBm/Tone, Unless Otherwise Noted) Parameter Symbol Minimum Typical Maximum Units Main Input to Output Impedance I/O Supply current2 Icc Gain |S21| 14 75 Ω 42 mA 15 16 dB Gain flatness 0.6 dB Reverse isolation 19 dB 2.9 dB Noise figure NF Third order output intercept point @ 42 mA3 OIP3 +28.4 dBm Input return loss |S11| 21 dB Output return loss |S22| 19 dB 1 Performance is guaranteed only under the conditions listed in this table. 2 ICC Test Condition: No RF is applied to devices and RF input/output are 75 Ω terminated. 3 OIP3 Test Condition: f1 = 1000 MHz, f2 = 1001 MHz. Evaluation Board Description The Skyworks SKY65452-92LF Evaluation Board is used to test the performance of the SKY65452-92LF low-noise amplifier. Figure 3 shows an application schematic for the SKY65452-92LF. An assembly drawing for the Evaluation Board is shown in Figure 4, and the layer detail physical characteristics are noted in Figure 5. Typical part marking is shown in Figure 6. Capacitor C5 provides DC bias decoupling for the output stage collector voltage. Pins 6 and 1 are the RF input and output signals, respectively. External DC blocking is provided on the input and output by capacitors C1 and C2. Ground pin 5 and the center ground pad provide the DC and RF ground. Resistor R1 is the bias resistor that can be used to optimize the current and performance of the LNA and L1 is a choke inductor which connects the Vcc to the output stage of the LNA. Pin 2 provides an enable function and has an optional RC circuit held in place by resistor R2 and capacitor C3. Pin 3 is a no connect pin and can be left floating or may be grounded. The input and output RF traces are 75 Ω traces. VCC R1 6Ω L1 Bead (1.5 kΩ) RF Output 75 Ω trace J1 C2 1 U1 RFOUT RFIN VCC GND N/C N/C C1 6 2 C4 10 nF 3 U1_3 J2 10 nF 10 nF C5 10 μF RF Input 75 Ω trace 5 R2 DNI 4 VEN C3 DNI P1 VCC VEN U1_3 6 5 4 3 2 1 Header 4 203095D-003 Figure 3. SKY65452-92LF Application Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203095E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 18, 2016 3 DATA SHEET • SKY65452-92LF: 40 MHz TO 1 GHz BROADBAND 75 Ω CATV LNA RFIN J1 RFOUT C2 L1 C1 C4 J2 U1 C3 R1 R2 C5 P1 203095D-004 Figure 4. SKY65452-92LF Evaluation Board Assembly Diagram 75 Ω Cross Section W = 1.270 mm Thickness Materials Tmask L1 0.010 mm 0.025 mm Solder Resist Cu – 1 oz Dielectric 1.500 mm FR4 L4 Bmask 0.025 mm 0.010 mm Cu – 1 oz Solder Resist Name 203095D-005 Figure 5. Layer Detail Physical Characteristics Skyworks Part Number 452 203095E-006 Pin 1 Indicator Figure 6. Typical Part Marking Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 February 18, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 203095E DATA SHEET • SKY65452-92LF: 40 MHz TO 1 GHz BROADBAND 75 Ω CATV LNA Package Dimensions The SKY65452-92LF is rated to Moisture Sensitivity Level 1 (MSL1) at 260 C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note: Solder Reflow Information, document number 200164. The SKY65452-92LF is packaged in a standard 6-Lead SC-70 (SC-88 or SOT-363). Figure 7 shows the package dimensions. Tape and reel dimensions are shown in Figure 8. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. Package and Handling Information Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. 0.079 (2.00 mm) ±0.008 (0.20 mm) 0.0256 (0.65 mm) BSC 0.087 (2.20 mm) ±0.008 (0.20 mm) 0.049 (1.25 mm) ±0.004 (0.10 mm) 0.009 (0.23 mm) Ref Pin 1 Indicator 0.035 (0.90 mm) ±0.004 (0.10 mm) 0.010 (0.25 mm) ±0.006 (0.15 mm) 0.0055 (0.14 mm) ±0.0015 (0.04 mm) 0.002 (0.005 mm) ±0.002 (0.005 mm) 0.037 (0.95 mm) ±0.006 (0.15 mm) 0.008 (0.20 mm) ±0.004 (0.10 mm) 203095D-006 Figure 7. SKY65452-92LF Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203095E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 18, 2016 5 DATA SHEET • SKY65452-92LF: 40 MHz TO 1 GHz BROADBAND 75 Ω CATV LNA 4.00 ± 0.10 4.00 (See Note 5) 2.00 ± 0.05 ø1.50 +0.10 –0 3.50 ± 0.05 1.75 ± 0.10 8.00 + 0.30 –0.10 Pin 1 Indicator R0.3 Typ ø1.00 Min. 0.30 ± 0.05 Notes: 1. Carrier tape: black conductive polystyrene. 2. Cover tape: transparent conductive HSA. 3. Cover tape size: 5.4 mm width. 4. All dimensions are in millimeters. 5. 10-sprocket hole pitch cumulative tolerance: ±0.20. 2.25 ± 0.10 1.20 ± 0.10 Ao Ko 2.70 ± 0.10 Bo 203095D-007 Figure 8. SKY65452-92LF Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 February 18, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 203095E DATA SHEET • SKY65452-92LF: 40 MHz TO 1 GHz BROADBAND 75 Ω CATV LNA Ordering Information Model Name SKY65452-92LF: 40 MHz to 1 GHz Broadband 75 Ω CATV Low-Noise Amplifier Manufacturing Part Number SKY65452-92LF Evaluation Board Part Number TW21-D850 Copyright © 2014-2016 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. 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Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks and the Skyworks symbol are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203095E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 18, 2016 7