PRELIMINARY DATA SHEET SKY65238: Power Amplifier Module With Integrated BAW Filter for WLAN Applications Applications Description • IEEE802.11 b/g/n WLAN − Access points and routers − Set top boxes, gaming consoles, and other home entertainment devices (including video, voice, and data “triple play” devices) Skyworks SKY65238 is a Power Amplifier Module (PAM) with integrated Bulk Acoustic Wave (BAW) filtering technology. The device provides high output power, linearity, and gain across the entire bandwidth. These features make the SKY65238 ideal for 802.11 b/g/n Wireless Local Area Networks (WLANs) transmitting video, voice, and data. Features • High gain of 30 dB • EVM (64 QAM OFDM): 3% @ +25 dBm • Supply voltage: 5 V • Integrated output power detector with ±0.5 dB accuracy The device is fabricated using Skyworks highly reliable Indium Gallium Phosphide (InGaP) Heterojunction Bipolar Transistor (HBT) technology. The PAM integrates three-stage power amplifiers, a BAW filter, and a power detector into a small, 20-pin, 6 x 6 mm Multi-Chip Module (MCM). The device package and pinout for the 20-pin MCM are shown in Figure 1. A block diagram of the SKY65238 is shown in Figure 2. GND 1 • Small footprint, MCM (20-pin, 6 x 6 mm) Pb-free (MSL3, 250 °C per JEDEC J-STD-020) SMT package GND 20 19 18 17 15 VCC_DET N/C 3 14 V_DET VC_BIAS 4 13 VCC2 VREF1 5 12 N/C VREF2 6 11 VCC3 7 8 9 10 GND 2 RF_OUT VCC1 GND 16 VREF3 Skyworks offers lead (Pb)-free RoHS (Restriction of Hazardous Substances) compliant packaging. GND • Superior gain flatness RF_IN • Internal RF match and bias circuits GND • Sharp rejection near bandwidth edges meets FCC restricted band emissions GND • Output power detector with 20 dB dynamic range S1306 Figure 1. SKY65238 Pinout – 20-Pin MCM (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200743D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 21, 2008 1 PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER VREF1, VREF2 VREF3 RF_IN Input Match VC_BIAS VCC_DET Detector Active Bias V_DET BAW Filter Stage 1 PA Inter-Stage Match VCC1 Stage 2 PA Inter-Stage Match Stage 3 PA Output Match VCC3 VCC2 RF_OUT S1307 Figure 2. SKY65238 Block Diagram Series Resonators BAW Filter Parallel "Shunt" Resonators S1308 Figure 3. Typical BAW Filter “Ladder” Network Technical Description The SKY65238 PAM contains all of the needed RF matching, BAW filtering, and DC biasing circuits. The device also provides an output power detector voltage. The SKY65238 is a three-stage, HBT InGaP device optimized for high linearity and power efficiency. These features make the device suitable for WLAN applications where power amplifier linearity and power consumption are of critical importance. BAW Filter The BAW filter uses very low loss electromechanical resonators to perform highly selective RF filtering. A BAW filter is formed by cascading both series and shunt resonators in a ladder configuration as shown in Figure 3. The series and shunt resonators have slightly different resonant frequencies. Together, they form a bandpass with steep nearband roll off. The impedance, band shape, insertion loss, and the out of band rejection of the filter are determined by optimizing the properties of the various resonators. Package and Handling Information Since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. 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. The SKY65238 is rated to Moisture Sensitivity Level 3 (MSL3) at 250 °C. It can be used for lead or lead-free soldering. For additional information, refer to Skyworks Application Note, PCB Design and SMT Assembly/Rework Guidelines for MCM-L Packages, document number 101752. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 May 21, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200743D PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER 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. For packaging details, refer to the Skyworks Application Note, Tape and Reel, document number 101568. Figure 13 provides a typical evaluation board schematic. An assembly drawing for the Evaluation Board is shown in Figure 14 and the layer detail is provided in Figure 15. Package dimensions for the 20-pin MCM are shown in Figure 16, and tape and reel dimensions are provided in Figure 17. Electrical and Mechanical Specifications Electrostatic Discharge (ESD) Sensitivity Signal pin assignments and functional pin descriptions are described in Table 1. The absolute maximum ratings of the SKY65238 are provided in Table 2. Electrical specifications are provided in Table 3. Typical performance characteristics are illustrated in Figures 4 through 12. The SKY65238 is a static-sensitive electronic device. Do not operate or store near strong electrostatic fields. Take proper ESD precautions. Table 1. SKY65238 Signal Descriptions Pin # Name Description Pin # Name Description 1 GND Ground 11 VCC3 Stage 3 collector voltage 2 GND Ground 12 N/C No connection 3 N/C No connection 13 VCC2 Stage 2 collector voltage 4 VC_BIAS Bias voltage 14 V_DET Detector output signal 5 VREF1 Bias reference voltage 1 15 VCC_DET Detector supply voltage 6 VREF2 Bias reference voltage 2 16 VCC1 Stage 1 collector voltage 7 VREF3 Bias reference voltage 3 17 GND Ground 8 GND Ground 18 RF_IN RF input 9 RF_OUT RF output 19 GND Ground 10 GND Ground 20 GND Ground Table 2. SKY65238 Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Maximum Units RF output power POUT 27 dBm Supply voltage, measured at pin of package (Note 2) VREF1, VREF2, VREF3, and VCC_DET 4 V Collector and bias voltage VCC1, VCC2, VCC3, and VC_BIAS 6 V Total supply current (ICC + IBIAS + IREF) ICC_TOTAL 800 mA 3.0 W +85 °C Power dissipation Case operating temperature TC –40 Storage temperature TST –55 Junction temperature (Note 3) TJ +125 °C +150 °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. Note 2: Evaluation Board supply voltage levels can be different. Refer to the Evaluation Board schematic diagram in Figure 12. Note 3: Thermal resistance (junction to center ground pad) is 20 °C/W minimum and 23 °C/W maximum. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200743D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 21, 2008 3 PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER Table 3. SKY65238 Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units –6 dBm RF input power PIN Supply voltage, measured at pin of package VREF1, VREF2, and VREF3 2.3 2.5 2.7 V VCC_DET 3.3 3.6 3.9 V VCC1, VCC2, VCC3, and VC_BIAS 4.5 5.0 5.5 V Case operating temperature TC –40 +85 °C Storage temperature TST –55 +125 °C Table 4. SKY65238 Electrical Specifications (1 of 2) (VCC1, VCC2, VCC3, VREF1, VREF2, VREF3, VCC_DET, and VC_BIAS = 5 V at the Evaluation Board Terminals, TC = +25 °C, Test Frequency = 2.442 GHz Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Using IEEE802.11b Complimentary Code Keying Input Signal, Data Rate = 11 Mbps Total supply current ICC_TOTAL 1150 mA Output power (Note 1) POUT +27 dBm Power added efficiency (Note 2) PAE 25 % Ramp-up/ramp-down (Note 3) TS <0.5 µs Using IEEE802.11g Orthogonal Frequency Division Multiplexing Input Signal, Data Rate = 54 Mbps Total supply current ICC_TOTAL 1050 mA Output power (Note 4) POUT +27 dBm Output power @ EVM = 3% POUT_EVM +22 dBm Power added efficiency (Note 2) PAE 22 % Error Vector Magnitude EVM All power levels between +13 dBm and +22 dBm per IEEE802.11g @ 54 Mbps OFDM G PIN = –25 dBm 30 dB Gain flatness over band From 2.4 GHz to 2.5 GHz ±2 dB Gain flatness over channel (16.25 MHz) Over any 20 MHz within band ±1 dB dBm 3 % Using Continuous Wave Input Signals Small signal gain Output IP3 OIP3 PTONE = +25 dBm, Delta_freq = 5 MHz +40 Quiescent Current IQ No RF input 420 460 mA Noise Figure NF 5 7 dB Power detector dynamic range Power detector accuracy Over temperature 20 dB ±0.5 dB Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 May 21, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200743D PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER Table 4. SKY65238 Electrical Specifications (2 of 2) (VCC1, VCC2, VCC3, VREF1, VREF2, VREF3, VCC_DET, and VC_BIAS = 5 V at the Evaluation Board Terminals, TC = +25 °C, Test Frequency = 2.442 GHz Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Using Continuous Wave Input Signals (continued) Lower passband frequency Upper passband frequency F2 2402 MHz 2472 MHz Lower stopband attenuation @ 2.39 GHz 10 dB Upper stopband attenuation @ 2.4835 GHz 10 dB 40 dB Second harmonic attenuation band Note 1: Defined as the maximum power level for which the IEEE802.11b transmit mask requirements are met. Note 2: Measured at the specified average output RF power and modulation type. Note 3: Ramp-up and ramp-down times are defined from the 10% to 90% power points. Note 4: Defined as the maximum power level for which the IEEE802.11g transmit mask requirements are met. 35 2 30 1 1: 2: 3: 4: 5: 3 25 2.4020 GHz 2.4370 GHz 2.4720 GHz 2.4835 GHz 2.3900 GHz 28.77 dB 29.54 dB 28.18 dB 17.17 dB 18.39 dB 20 5 Gain (dB) 15 4 10 5 0 –5 –10 –15 2.0 2.2 2.1 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 Frequency (GHz) Figure 4. Gain Response 9 8 2412 MHz 2437 MHz 2462 MHz 7 EVM (%) 6 5 4 3 2 1 0 13 15 17 19 21 23 25 POUT (dBm) Figure 5. EVM vs Output Power Over Frequency Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200743D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 21, 2008 5 PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER 1.0 2412 MHz 2437 MHz 2462 MHz 0.9 Detector Voltage (V) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 13 15 17 19 21 23 25 27 POUT (dBm) Figure 6. Detector Voltage vs Output Power Over Frequency 30.0 29.5 29.0 2412 MHz 2437 MHz 2462 MHz Gain (dB) 28.5 28.0 27.5 27.0 26.5 26.0 –3 1 5 9 13 17 21 25 29 33 POUT (dBm) Figure 7. Typical Gain vs Output Power Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 May 21, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200743D PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER 32 31 Gain (dB) 30 29 28 27 26 25 24 2.40 2.41 2.42 2.43 2.44 2.45 2.46 2.47 Frequency (GHz) Figure 8. Gain vs Frequency 8 Noise Figure (dB) 7 6 5 4 3 2.40 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48 2.49 2.50 Frequency (GHz) Figure 9. Typical Noise Figure vs Frequency 10 0 Power (dB) –10 –20 –30 –40 –50 2.405 2.411 2.417 2.423 2.429 2.435 2.441 2.447 2.453 2.459 2.465 2.471 Frequency (GHz) Figure 10. Output Spectrum Response for 802.11g Signal (POUT = + 28 dBm) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200743D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 21, 2008 7 PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER 0 –10 –20 POUT = +29 dBm Power (dB) –30 –40 –50 –60 –70 2.407 2.413 2.419 2.425 2.431 2.437 2.443 2.449 2.455 2.461 2.467 Frequency (GHz) Figure 11. Output Spectrum Response for 802.11b CCK-Coded Signal (POUT = +29 dBm) 1000 ICC1 ICC2 ICC3 ICC Total 900 800 Current (mA) 700 600 500 400 300 200 100 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 POUT (dBm) Figure 12. Individual Stage Currents and Total Current vs. RF Output Power Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 May 21, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200743D PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER × GND 3 N/C VDET VC_BIAS GND VREF2 Detector Supply Voltage (5 V) C6 3300 pF 15 L2 27 nH 14 Detector Output 13 N/C 12 VCC3 11 C8 8.2 pF C16 10 μF C10 8.2 pF C17 10 μF Collector Voltage (Stage 2, 5 V) × 10 6 RF_OUT R2 240 Ω VREF1 9 5 R5 300 Ω Collector Voltage (Stage 1, 5 V) C7 8.2 pF VCC2 R1 750 Ω 16 C15 10 μF SKY65238 7 C2 8.2 pF GND VCC_DET GND Reference Voltage (5 V) VCC1 GND 8 C1 8.2 pF C5 8.2 pF 17 2 4 C11 10 μF GND VREF3 Bias Voltage (5 V) GND 1 18 RF_IN 19 20 R3 200 Ω Collector Voltage (Stage 3, 5 V) Note: Evaluation Board material: four-layer Rogers 4003-12, εr = 3.38. Some component labels may be different than the corresponding component symbol shown here. Component values, however, are accurate as of the date of this Data Sheet. S1309 Figure 13. SKY65238 Evaluation Board Schematic C15 C5 C6 C11 R5 C7 C1 J3 U1 L2 R1 C2 C16 J4 C8 R2 R3 C10 C17 S1160 Figure 14. Evaluation Board Assembly Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200743D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 21, 2008 9 PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER Layer 1: Top Metal Layer 2: Ground Layer 3: Inner Traces Layer 4: Ground S1159 Figure 15. Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 May 21, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200743D 6 Pin 1 B Pin 20 (2.075) 4X 0.5 4X 1.5 12X 2.9 2X 1.9 PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER (∅0.3) Solder Mask Opening ∅0.15 Metal Pad Pin 1 Indicator C (2.75) 4X 2.5 Pin 1 4X 1.5 4X 0.5 6 A 2X 1.9 8X 2.9 20X SMT Pad A 1.45 ± 0.1 0.15 A B C Top View 4X R0.2 0.1 Solder Mask Opening 0.15 A B C 0.2 A B C Bottom View Side View 0.5 ± 0.1 0.1 0.5 ± 0.05 Metal Pad Edge All dimensions are in millimeters Dimensioning and tolerancing according to ASME Y14.5M-1994 Detail A S416 Figure 16. SKY65238 20-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200743D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 21, 2008 11 PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER 2.00 ± 0.05 4.00 8.00 ∅1.50 ± 0.10 0.30 ± 0.02 B 6.35 A 12.00 ± 0.30 A 1.75 ± 0.10 5.50 ± 0.05 Pin #1 Indicator (see Notes) 7o Max. B ∅1.50 Min. 1.59 6.35 B 8o Max. Notes: 1. Carrier tape: black conductive polystyrene 2. Cover tape material: transparent conductive PSA 3. Cover tape size: 9.3 mm width 4. All dimensions are in millimeters 5. Pin 1 orientation is in top left corner for the following Skyworks products: A SKY73022-21, -31 SKY73023-21, -31 For all other 6 x 6 mm MCM/RFLGA products, pin 1 orientation is in top right corner. S1183 Figure 17. SKY65238 20-Pin MCM Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 May 21, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200743D PRELIMINARY DATA SHEET • SKY65238 WLAN PAM WITH BAW FILTER Ordering Information Model Name SKY65238 WLAN Power Amplifier with BAW Filter Manufacturing Part Number SKY65238-21 (Pb-free package) Evaluation Kit Part Number TW16-D281 Copyright © 2007, 2008 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, 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 • [email protected] • www.skyworksinc.com 200743D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 21, 2008 13