SKY65971-11

DATA SHEET SKY65971-11: 2 GHz, 256 QAM Low-Noise Amplifier Applications LNA_EN/BYPASS VCC  256 QAM, 802.11g/n WLANs  2 GHz ISM radios Bias  Smart phones  Notebooks, netbooks, tablets  Access points, routers, gateways RF_IN RF_OUT  Wireless video systems –7 dB S2581a Features  Ultra-low Noise Figure Figure 1. SKY65971-11 LNA Block Diagram  2.4 GHz to 2.5 GHz operation  Enable/disable/bypass modes Description  High IIP3 The SKY65971-11 is an ultra Low-Noise Amplifier (LNA) intended for 2 GHz, 256 Quadrature Amplitude Modulation (QAM) wireless receiver applications. Its industry-leading Noise Figure (NF), together with high linearity, make it ideal as a first-stage LNA in 256 QAM Wireless Local Area Network (WLAN) radios.  High gain  2.8 V to 3.6 V single-supply operation  QFN (6-pin, 1.5 x 1.5 mm) package (MSL1, 260 C per JEDEC J-STD-020) Skyworks Pb-free products are compliant with all applicable legislation. For additional information, refer to Skyworks Definition of Lead (Pb)-Free, document number SQ04-0073. Operating with a single supply voltage, the SKY65971-11 consumes only 13 mA of current. The device includes a bypass mode for near field applications and to save power when the receiver is inactive. The tiny package footprint of the SKY65971-11, requiring only four external components, enables the industry’s smallest PCB area needed to implement a 2 GHz LNA. A block diagram of the SKY65971-11 is shown in Figure 1. The device package and pinout for the 6-pin Quad Flat No-Lead (QFN) are shown in Figure 2. LNA_EN/BYPASS 1 6 VCC RF_IN 2 5 RF_OUT GND 3 4 GND S2582 Figure 2. SKY65971-11 Pinout – 6-Pin QFN Package (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201633J • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • March 3, 2014 1 DATA SHEET • SKY65971-11 2 GHZ LNA Technical Description Production quantities of this product are shipped in a standard tape and reel format. The SKY65971-11 is fully matched at 50 Ω and requires only a simple bypass circuit on pin 6 (VCC). The bypass/shutdown mode is achieved by switching the LNA_EN signal (pin 1) to 0 V. Electrical and Mechanical Specifications Signal pin assignments and functional pin descriptions are described in Table 1. The absolute maximum ratings of the SKY65971-11 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. 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. Performance characteristics for the SKY65971-11 are illustrated in Figures 3 through 8. An application schematic diagram for the SKY65971-11 is shown in Figure 9. The PCB footprint drawing for the SKY65971-11 is provided in Figure 10. Typical part markings are shown in Figure 11. The package dimensions for the 6-pin QFN are shown in Figure 12, and the tape and reel dimensions are provided in Figure 13. The SKY65971-11 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. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Table 1. SKY65971-11 Pin Assignments and Signal Descriptions Pin Name Description 1 LNA_EN/BYPASS LNA enable (when pulled high) or bypass (when pulled low) control input 2 RF_IN LNA RF input 3 GND Ground 4 GND Ground 5 RF_OUT LNA RF output 6 VCC Supply voltage for LNA Table 2. Absolute Maximum Ratings (Note 1) Minimum Maximum Units Supply voltage Parameter VCC Symbol 0 3.6 V DC voltage at control ports VENABLE 0 3.6 V Power into LNA inputs PIN, LNA +10 dBm Receive power (ANT terminated in 50 Ω match, OFDM, VCC = 3.45 V) PIN +5 dBm Operating temperature TA –40 +85 C Storage temperature TSTG –40 +125 C Electrostatic Discharge, Human Body Model (HBM), Class 1C ESD 1000 V Note 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. 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. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 2 March 3, 2014 • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • 201633J DATA SHEET • SKY65971-11 2 GHZ LNA Table 3. Recommended Operating Conditions (@ +25 °C, VCC = 3.3 V) Parameter Symbol Minimum Typical 0 Maximum Units 3.6 V Supply voltage VCC RF frequency range f 2.4 2.5 GHz Operating temperature range TA –40 +85 C DC voltage at control port: High Low VENABLE_H VENABLE_L 1.8 0 3.6 0.2 V V Table 4. Electrical Characteristics (Note 1) (VCC = 3.3 V, TA = +25 C, f = 2.4 to 2.5 GHz, VENABLE = 3.3 V, Unless Otherwise Noted) Parameter Symbol Test Conditions Minimum Typical 13.0 14.5 Maximum Units Enable Mode (LNA_EN = 3.3 V) Gain |S21| Gain flatness across band |S21| Out of band gain @ 5.18 GHz S21_5.18 –8 Noise Figure NF 1.3 rd dB 0.3 dB 1.5 dB 3 Order Input Intercept Point IIP3 +7 dBm In-band 1 dB compression point at input IP1dB –1.5 dBm Out-of-band (5.18 GHz injected signal) 1 dB Input Compression Point IP1dB +4 dBm Input return loss |S11| ZS/L = 50  9 Output return loss |S22| ZS/L = 50  12 Reverse isolation S12 Maximum RF input (compliant) dB dB –20 dB –10 dBm Maximum RF input (no damage) +10 Drain current 13.0 Control enable current IEN dBm 17.5 mA 100 μA Bypass Mode (LNA_EN = 0 V) Gain S21 –7 dB Gain flatness across 80 MHz |S21| 0.5 dB Noise Figure NF 1 dB Input Compression Point IP1dB Input return loss |S11| 9 Output return loss |S22| 12 Maximum RF input with harmonic < –50 dBm/MHz (Note 2) Switching speed: LNA to bypass mode and bypass mode to LNA 7 dB +15.3 dBm dB dB +6 tS dBm 300 ns Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2: Harmonic leakage is measured at the RF_IN port. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201633J • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • March 3, 2014 3 DATA SHEET • SKY65971-11 2 GHZ LNA Typical Performance Characteristics +20 +20 +10 +10 0 0 S-Parameters (dB) S-Parameters (dB) (VCC = 3.3 V, TA = +25 C, f = 2.4 to 2.5 GHz, VENABLE = 3.3 V, Unless Otherwise Noted) –10 –20 –30 –40 –50 –20 –30 –40 –50 |S11| (dB) |S21| (dB) |S12| (dB) |S22| (dB) –60 –10 |S11| (dB) |S21| (dB) |S12| (dB) |S22| (dB) –60 –70 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 –70 2.40 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48 2.49 2.50 Frequency (GHz) Frequency (GHz) Figure 4. Narrow Band S-Parameters vs Frequency (“On” State) 0 0 –10 –10 –20 –20 S-Parameters (dB) S-Parameters (dB) Figure 3. Broadband S-Parameters vs Frequency (“On” State) –30 –40 –50 |S11| (dB) |S21| (dB) |S12| (dB) |S22| (dB) –60 –70 –30 –40 –50 |S11| (dB) |S21| (dB) |S12| (dB) |S22| (dB) –60 –70 2.40 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48 2.49 2.50 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 Frequency (GHz) Frequency (GHz) Figure 5. Broadband S-Parameters vs Frequency (“Off” State) Figure 6. Narrow Band S-Parameters vs Frequency (“Off” State) 2.0 +7.5 1.8 +7.0 IIP3 = 6.69 Input IP3 (dBm) Noise Figure (dB) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 2.40 IIP3 = 6.96 +6.5 IIP3 = 6.58 +6.0 +5.5 +5.0 +4.5 2.42 2.44 2.46 2.48 Frequency (GHz) Figure 7. Noise Figure vs Frequency 2.50 +4.0 2.38 2.40 2.42 2.44 2.46 2.48 Frequency (GHz) Figure 8. IIP3 vs Frequency Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 4 March 3, 2014 • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • 201633J 2.50 2.52 DATA SHEET • SKY65971-11 2 GHZ LNA 1 LNA_EN/BYPASS Control Input 10 pF VCC 2 RF Input RF_IN RF_OUT 3 6 100 pF 5 0.1 μF 2.2 μF VCC RF Output 4 GND GND S2672 Figure 9. SKY65971-11 Schematic Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201633J • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • March 3, 2014 5 0.53 1.90 0 0.48 DATA SHEET • SKY65971-11 2 GHZ LNA 0.375 Typ. 0.70 3X ø0.25 0.55 0.25 Typ. 6 1 0.500 Typ. 2 5 0 3 4 0.55 0 3 4 2X 1.185 Via Pattern (Note 1) 0 Board Metal 2X ø0.457 2.00 1.90 0.475 Typ. 0.55 6 1 0.40 0.35 Typ. 6 1 0.25 Typ. 0.500 Typ. 0.500 Typ. 1.40 0.375 Typ. 2 5 3 4 1.20 2 5 3 4 62% Solder Coverage on Center Pad Solder Mask Pattern (Note 2) Package Outline Stencil Pattern (Note 3) NOTES: 1. Via hole recommendations: 0.025 mm Cu via wall plating (minimum), via holes to be plated shut or plugged and capped, both sides. 2. Soldermask recommendations: Contact board fabricator for recommended soldermask offset and tolerance. 3. Stencil recommendations: 0.10 mm stencil thickness, laser cut apertures, trapezoidal walls and rounded corners offer better paste release. Dimension and tolerancing according to ASME Y14.5M-1994. Unless specified, dimensions are symmetrical about center lines. All dimensions are in millimeters. Figure 10. SKY65971-11 PCB Layout Footprint (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 6 March 3, 2014 • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • 201633J S3352 DATA SHEET • SKY65971-11 2 GHZ LNA Pin 1 Indicator Skyworks Part Number SKY1 5971 Figure 11. Typical Part Markings (Top View) C A 1.5 0.02 +0.03/–0.02 B Pin 1 Indicator 0.15 X 45o Pin 1 Ind. Seating Plane 0.70 +0.10/–0.15 2X 0.05 1.5 1.20 +0.10/–0.15 Detail B 0.10 C 2X 6X 3 Detail C 0.08 C 2X 0.10 C Exposed Pad 0.41/0.50 0.10 C Top View Side View Bottom View 6X 0.20 Min 0.175 ± 0.10 0.5 0.25 +0.05/–0.07 5 CL 0.10 C A B 2X R0.05 Detail C Detail B 6 Places All measurements are in millimeters. Dimensioning and tolerancing according to ASME Y14.5M-1994. Coplanarity applies to the exposed heat sink slug as well as the terminals.. Plating requirement per source control drawing (SCD) 2504. Dimension applies to metalized terminal and is measured between 0.15 mm and 0.30 mm from terminal tip. S1350 Figure 12. SKY65971-11 6-Pin QFN Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201633J • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • March 3, 2014 7 DATA SHEET • SKY65971-11 2 GHZ LNA Pin 1 4.00 ± 0.10 ϕ1.50± 0.10 2.00 ± 0.05 0.20 ± 0.02 (T) 5o Max A 3.50 ± 0.05 1.78 ± 0.05 (Bo) B A 8.00 +0.30/–0.10 1.75 ± 0.10 B 0.69 ± 0.05 (Ko) ϕ0.50± 0.05 B 5o Max 1.78 ± 0.05 (Ao) A Notes: 1. Carrier tape: black conductive polycarbonate or polystyrene. 2. Cover tape material: transparent conductive PSA. 3. Cover tape size: 5.4 mm width. 4. All measurements are in millimeters. Figure 13. SKY65971-11 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 8 March 3, 2014 • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • 201633J S1382a DATA SHEET • SKY65971-11 2 GHZ LNA Ordering Information Model Name SKY65971-11 2 GHz, 256 QAM LNA Manufacturing Part Number SKY65971-11 Evaluation Board Part Number SKY65971-11-EK1 Copyright © 2011-2014 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. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. 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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, the Skyworks symbol, and “Breakthrough Simplicity” 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 • sales@skyworksinc.com • www.skyworksinc.com 201633J • Skyworks Proprietary Information • Products and Product Information Are Subject To Change Without Notice • March 3, 2014 9