DATA SHEET SKY85709-11: 5 GHz 802.11ac WLAN Front-End Module Applications 4B VDET WiFi-enabled handsets, tablets, and mobile/portable systems System-in-Package (SIP) modules for embedded systems WLAN-enabled wireless video systems TX PA ANT Features RX 0B LNA Integrated high-performance 5 GHz PA with harmonic filter, LNA with bypass, and SPDT LNA_EN SW_CTL PEN Fully matched input and output Integrated, positive slope power detector Transmit gain: 30 dB S3282 Figure 1. SKY85709-11 Block Diagram Receive gain: 13.5 dB Output power: +19 dBm @ 2% EVM, 64 QAM 54 Mbps Output power: +18 dBm @ 2% EVM, MCS7 HT40 Output power: +16 dBm @ 1.5% EVM, MCS9 HT80 Direct connection to battery with 3.6 V nominal supply voltage Small, QFN (16-pin, 2.5 x 2.5 mm) package (MSL1, 260 C per JEDEC J-STD-020) GND ANT GND SW_CTL Skyworks Green™ products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green™, document number SQ04-0074. 16 15 14 13 VCC2 2 11 RX VCC1 3 10 GND GND 4 9 VBAT 5 6 7 8 GND LNA_EN PEN 12 GND 1 TX VDET Description 1B The SKY85709-11 is a highly integrated, 5 GHz front-end module (FEM) incorporating a 5 GHz single-pole, double-throw (SPDT) transmit/receive (T/R) switch, a 5 GHz low-noise amplifier (LNA) with bypass, and a 5 GHz power amplifier (PA) intended for mobile/portable 802.11n/ac applications and systems. The device operates from a single supply voltage of 3.6 V. An enable/disable function is included that allows power savings during off mode. An integrated power detector with 20 dB of dynamic range is included to provide closed-loop power control within the system. The device is provided in a compact, 16-pin 2.5 x 2.5 mm Quad Flat No-Lead (QFN) package. 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. S2849a Figure 2. SKY85709-11 Pinout – 16-Pin QFN (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202671G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 1, 2014 1 DATA SHEET • SKY85709-11: FRONT-END MODULE Technical Description Package and Handling Information 5B 6B The SKY85709-11 is comprised of a high performance 5 GHz PA, a 5 GHz LNA with bypass, and a broadband SPDT switch. The device is fully-matched and requires few external components for optimal performance, which makes it ideal for small portable/mobile applications. The FEM provides up to 28 dB of gain over the frequency band. The PA can be shut off using the PEN signal (pin 7). 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. Electrical and Mechanical Specifications The SKY85709-11 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. 2B Signal pin assignments and functional pin descriptions are described in Table 1. The absolute maximum ratings of the SKY85709-11 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Tables 4, 5, and 6. 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. The state of the SKY85709-11 is determined by the logic provided in Table 7. Table 1. SKY85709-11 Signal Descriptions Pin Name Description Pin Name Description 1 VDET Detector output voltage 9 VBAT Logic and LNA supply 2 VCC2 Supply voltage 10 GND Ground 3 VCC1 Supply voltage 11 RX RF receive output 4 GND Ground 12 LNA_EN LNA enable 5 TX RF transmit input 13 SW_CTL Switch control voltage 6 GND Ground 14 GND Ground 7 PEN PA enable 15 ANT Antenna 8 GND Ground 16 GND Ground Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 December 1, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202671G DATA SHEET • SKY85709-11: FRONT-END MODULE Table 2. SKY85709-11 Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Maximum Units V Supply voltage VBAT, VCC –0.3 +5.5 DC input on control pin VIN –0.3 +3.6 V Input power (ANT terminated in 50 Ω match) PIN +5 dBm Case operating temperature TA –40 +85 C Storage temperature TST –40 +140 C 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 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. SKY85709-11 Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units Supply voltage relative to GND = 0 V VCC 3.0 3.6 4.8 V Operating temperature TA –40 +25 +85 C Logic supply VBAT 3.0 3.3 4.8 V Table 4. SKY85709-11 Electrical Specifications: DC Characteristics (Note 1) (VCC = VBAT = 3.6 V, PEN = 3.6 V, TA = 25 °C, All Unused Ports Terminated with 50 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Supply current ICC-A POUT = +19 dBm, 54 Mbps 260 325 mA Quiescent current ICQ No RF 200 260 mA LNA supply current ICC_LNA LNA_EN = 3.3 V, PEN = SW_CTL = 0 V 13 18 mA LNA bypass supply current ICC_LNA_BYP LNA_EN = PEN = SW_CTL =0V 20 25 μA Typical Max Units 5925 MHz Note 1: Performance is guaranteed only under the conditions listed in this table. T Table 5. SKY85709-11 Electrical Specifications: General (1 of 2) (Note 1) (VCC = VBAT = 3.6 V, TA = 25 °C, All Unused Ports Terminated with 50 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Transmit Characteristics Frequency range f Error Vector Magnitude EVM 4900 5150 to 5850 MHz: Small signal gain S21 5150 to 5850 MHz POUT = 19 dBm, 54 Mbps POUT = 18 dBm, MCS7 HT40 POUT =16 dBm, MCS9 HT80 27 2.0 2.0 1.5 3.0 3.0 2.3 % % % 30 33 dB Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202671G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 1, 2014 3 DATA SHEET • SKY85709-11: FRONT-END MODULE Table 5. SKY85709-11 Electrical Specifications: General (2 of 2) (Note 1) (VCC = VBAT = 3.6 V, TA = 25 °C, All Unused Ports Terminated with 50 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Transmit Characteristics (continued) Gain flatness Over any 80 MHz bandwidth Harmonics: Second Third 2fo 3fo POUT = +19 dBm, 6 Mbps, 802.11a Delay and rise/fall time tDR, tDF 50% of VPA_EN edge and 90/10% of final output power level Input return loss S11 @ TX port Output return loss S22 Stability Stab @ ANT port VCC = VBAT = 4.2 V, CW, POUT = +21 dBm, 0.1 GHz to 20 GHz, load VSWR = 6:1 VCC = VBAT = 4.2 V, PIN = -4 dBm 6Mbps, 0.1 GHz to 20 GHz, load VSWR = 10:1 Full band Ruggedness ±0.25 dB ±1 dB –30 –40 dBm/MHz dBm/MHz 400 ns –14 –9 dB –15 –10 dB All non-harmonically related outputs < –43 dBm/MHz No permanent damage or performance degradation Receive Characteristics Frequency range f Small signal gain S21 Noise figure NF rd 3 Order Input Intercept Point nd IIP3 4900 LNA enabled +11 Bypass mode –7 5925 MHz +13.5 +16 dB –5 –3 dB 2.7 dB LNA enabled +3 dBm Bypass mode +19 dBm dBm 2 Order Input Intercept Point IIP2 @ 2600 MHz +50 Input return loss S11 LNA enabled –13 –10 dB Bypass mode –13 –10 dB LNA enabled –7 –3.5 dB Bypass mode –15 –12 dB Output return loss S22 Enable time tEN Switch isolation ISOLSW 10% to 90% of receive RF power, from time that LNA_EN is at 50% 500 17 ns dB Power Detector Characteristics Frequency range f Power detector range, CW PDR Output impedance PDZLOAD Output voltage PDVNO_RF PDVP19 Detector bandwidth PDBW 4900 Measured @ ANT pin +4 5925 MHz +25 dBm 2.2 kΩ POUT = no RF, measured in to 1 MΩ, 5500 MHz 0.2 V POUT = +19 dBm, CW, measured in to 1 MΩ, 5500 MHz 0.85 V 4 MHz Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 December 1, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202671G DATA SHEET • SKY85709-11: FRONT-END MODULE Table 6. SKY85709-11 Electrical Specifications: Control Logic Characteristics (VCC = VBAT = 3.6 V, TA = 25 °C, All Unused Ports Terminated with 50 Ω, Unless Otherwise Noted) Parameter Symbol Control voltage: High Low VIH VIL Input current: High Low IIH IIL Test Condition Min Typical 1.6 0 Max Units 3.6 0.4 V V 10 10 μA μA Table 7. SKY85709-11 Control Logic Mode PEN (Pin 7) SW_CTL (Pin 13) LNA_EN (Pin 12) WLAN transmit 1 1 0 WLAN receive 0 0 1 WLAN receive bypass mode 0 0 0 Note: “1” = 3.3 V, “0” = 0 V. Any other state than described in this Table places the switch into an undefined state. An undefined state will not damage the device. Evaluation Board Description Circuit Design Considerations 9B 7B The following design considerations are general in nature and must be followed regardless of final use or configuration: The SKY85709-11 Evaluation Board is used to test the performance of the SKY85709-11 FEM. A suggested application schematic diagram is shown in Figure 3. A photograph of the Evaluation Board is shown in Figure 4. Paths to ground should be made as short as possible. Evaluation Board Test Procedures The RX ports are AC-coupled and do not require DC blocking capacitors. Capacitors C1 and C9 (100 pF) should be on the primary side of the Evaluation Board at a minimum manufacturable distance from the FEM. 1. Connect the system ground to pin 1 of connector J1. 2. Apply 3.6 V to pin 4 of connector J1 and to pin 2 of connector J2. The ground pad of the SKY85709-11 has special electrical and thermal grounding requirements. This pad is the main thermal conduit for heat dissipation. Since the circuit board acts as the heat sink, it must conduct as much heat as possible from the device. Therefore, design the connection to the ground pad to dissipate the maximum heat produced by the FEM. Multiple vias to the grounding layer are required. 3. Select a path to test according to the modes shown in Table 7. 4. Connect a multimeter or oscilloscope to pin 2 of connector J1 to monitor the power detector voltage. 5. Apply an RF signal to connector J3 (ANT) to monitor the RX to ANT performance. Measure the response from the output of connector J4 (RX). Evaluation Board Losses 6. Apply an RF signal to connector J5 (TX) to monitor the TX to ANT performance. Monitor the output power on connector J3 (ANT). Care should be taken not to overdrive the amplifier by applying too much RF on the input to the device (–20 dBm provides a suitable starting input power for the device). The board losses from the RF connectors of the Evaluation Board to the pins of the SKY85709-11 are: ANT = TXT = RX = 0.20 dB Package Dimensions B The PCB layout footprint for the SKY85709-11 is shown in Figure 5. Typical case markings are shown in Figure 6. Package dimensions for the 16-pin QFN are shown in Figure 7, and tape and reel dimensions are provided in Figure 8. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202671G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 1, 2014 5 DATA SHEET • SKY85709-11: FRONT-END MODULE J3 Antenna SW_CTL C1 100 pF 2 R5 0Ω GND 13 VDET LNA_EN VCC2 RX 3 GND GND VBAT 5 PEN 6 7 12 LNA_EN J4 11 RF Receive Output 10 9 VBAT C9 100 pF GND VCC1 TX 4 GND C6 1 μF 14 SW_CTL 1 VCC2 15 ANT GND 16 VDET 8 J5 RF Transmit Input PEN J1 J2 1 2 3 4 5 6 7 8 VDET VCC2 VCC1 SW_CTL VBAT 1 J2 VBAT VBAT J2 2 3 4 5 7 8 9 11 12 SW_CTL 10 6 LNA_EN PEN Y1559 Figure 3. SKY85709-11 Application Schematic Figure 4. SKY85709-11 Evaluation Board Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 December 1, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202671G 15 14 13 16 1 12 2 11 3 10 4 9 14 2X 0.51 16 0 2.90 1.64 2X 0.51 DATA SHEET • SKY85709-11: FRONT-END MODULE 2X 0.51 2.90 1.64 0 0 10 2X 0.51 4 0.475 Typ. 5 6 7 8 6 8 0.500 Typ. 9X ø0.254 Board Metal Via Pattern (Note 1) 3.00 1.25 8X C0.050 x 45° 16 15 8 0 0.20 Typ. 2.90 0.20 Typ. 14 13 1 16 12 0.45 Typ. 15 14 13 1 12 2 11 3 10 4 9 0.20 Typ. 2 11 3 10 4 9 0.575 Typ. 0.45 Typ. 0.475 Typ. 5 Component Outline 2.90 3.00 1.25 6 7 5 8 0.500 Typ. 0.30 Typ. Solder Mask Pattern (Note 2) 6 7 0.500 Typ. 52% solder coverage on center pad 8 0.20 Typ. Stencil Pattern (Note 3) NOTES: 1. Via hole recommendations: 0.025 mm Cu via wall plating (minimum), via hole to be filled with conductive paste and plated over. 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. S3338 Figure 5. SKY85709-11 PCB Layout Footprint Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202671G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 1, 2014 7 DATA SHEET • SKY85709-11: FRONT-END MODULE Pin1 Indicator SKY11 85709 XXXXX Skyworks Part Number Lot # Figure 6. Typical Case Markings (Top View) 1.350 ± 0.050 2.500 ± 0.050 0.450 Max. See Note 3 16 15 14 Do Not Solder Typ. 4 Places O.30 x 45° 13 13 14 15 16 8X 0.15 Min. 1 12 2 11 2.500 ± 0.050 12 1 11 2 1.350 ± 0.050 3 10 4 9 0.500 10 4X ø0.150 ± 0.050 3 R0.075 Typ. 4 9 16X 0.225 ± 0.050 5 6 7 8 8 7 6 5 8X 0.150 ± 0.050 16X 0.200 ± 0.050 Top View Bottom View NOTES: 1. All measurements are in millimeters. 2. Dimensioning and tolerancing according to ASME Y14.5M-1994. Unless otherwise specified the following values apply: Decimal Tolerance: Angular Tolerance: X.X (1 place) ± 0.1 mm ±1° X.XX (2 places) ± 0.05 mm X.XXX (3 places) ± 0.025 mm 3. Terminal #1 identification mark located within marked area. 4. Unless specified, dimensions are symmetrical about center lines. Figure 7. SKY85709-11 16-Pin QFN Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 December 1, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202671G S2620 DATA SHEET • SKY85709-11: FRONT-END MODULE 2.00 ± 0.05) (See Note 1) ∅1.00 Min. 4.00 ± 0.1 (See Note 2) ∅1.55 ± 0.05 1.75 ± 0.1 2.75 ± 0.05 3.50 ± 0.10 (See Note 1) A C L A 0.70 ± 0.10 R0.1 Typ. 4.00 ± 0.10 8.00 + 0.30/– 0.10 0.25 ± 0.05 Pin 1 Indicator 2.75 ± 0.05 A Notes: 1. Measured from centerline of sprocket hole to centerline of pocket. 2. Cumulative tolerance of 10 sprocket holes: ±0.02 mm. 3. ESD surface resistivity is ≤1 x 109 Ohms/square per EIA, JEDEC tape and reel specification. 4. Carrier tape: black conductive polycarbonate. 5. Cover tape material: transparent conductive material. 6. All measurements are in millimeters. S2678 Figure 8. SKY85709-11 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202671G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 1, 2014 9 DATA SHEET • SKY85709-11: FRONT-END MODULE Ordering Information 8B Model Name SKY85709-11: 5 GHz Front-End Module Manufacturing Part Number SKY85709-11 Evaluation Board Part Number SKY85709-EVB Copyright © 2013-2014 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 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 10 December 1, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202671G