DATA SHEET SKY65127-11: 700-800 MHz High Linearity, 2 W Power Amplifier Applications • WCDMA, CDMA, TDMA, GSM, LTE systems • Repeaters • WLL and ISM band transmitters • Mobile radios • Femtocell base stations Features • High linearity: OIP3 > +47 dBm • OP1dB = +32.5 dBm • ACLR = –45 dBc for POUT = +25 dBm • High efficiency: PAE = 38% • High gain = 36.5 dB • Internal RF match and bias circuits • Single DC supply: 5 V • MCM (20-pin, 6 x 6 mm) package (MSL3, 260 °C per JEDEC J-STD-020) Figure 1. SKY65127-11 Block Diagram Description Skyworks SKY65127-11 is a fully-matched, surface mount Power Amplifier (PA) designed for WCDMA, CDMA, TDMA, GSM, and LTE radio, repeaters, transmitters, mobile radios, and femtocell base station applications operating in the 700 to 800 MHz bandwidth. All active circuitry in the module is contained in a single GaAs Microwave Monolithic Integrated Circuit (MMIC). The device is manufactured using Skyworks AlGaAs Heterojunction Bipolar Transistor (HBT) process, which allows for single supply operation while maintaining high efficiency and good linearity. A block diagram of the SKY65127-11 is shown in Figure 1. The device package and pinout for the 20-pin MCM are shown in Figure 2. Figure 2. SKY65127-11 Pinout – 20-Pin MCM (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200955C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 28, 2012 1 DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Table 1. SKY65127-11 Signal Descriptions Pin # Description Pin # Name Description 1 GND Ground 11 VCC2 Stage 2 collector voltage 2 GND Ground 12 N/C No connection 3 GND Ground 13 VCC1 Stage 1 collector voltage 4 VC_BIAS Bias voltage 14 N/C No connection 5 N/C No connection 15 N/C No connection 6 VREF1 Bias reference voltage 1 16 RF_IN RF input 7 VREF2 Bias reference voltage 2 17 GND Ground 8 GND Ground 18 N/C No connection 9 RF_OUT RF output 19 GND Ground GND Ground 20 GND Ground 10 Note: Name The center ground pad must have a low inductance and low thermal resistance connection to the application’s printed circuit board ground plane. Table 2. SKY65127-11 Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units RF input power PIN 0 dBm Supply voltage (VCC1, VCC2, VC_BIAS, VREF1, VREF2) VCC 6 V Operating temperature TC –40 +85 °C Storage temperature TST –55 +125 °C Junction temperature TJ +150 °C Power dissipation PD 3 W Thermal resistance ΘJC 17 °C/W Note: 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. Technical Description The SKY65127-11 PA contains two amplifier stages. The matching circuits for the input stage, interstage, and output stage are contained within the device. An on-chip active bias circuit is included within the device for both input and output stages, which provides excellent gain tracking over temperature and voltage variations. The SKY65127-11 is internally matched for optimum linearity and efficiency. The input and output stages are independently supplied using the VCC1 and VCC2 supply lines (pins 13 and 11, respectively). The bias reference voltages for stages 1 and 2 are supplied using common lines VREF1 and VREF2 (pins 6 and 7, respectively). The DC control voltage that sets the bias to stages 1 and 2 is supplied by the VC_BIAS signal (pin 4). Electrical and Mechanical Specifications Signal pin assignments and functional pin descriptions are described in Table 1. The absolute maximum ratings of the SKY65127-11 are provided in Table 2. Recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Typical performance characteristics are shown in Figures 3 through 14. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 August 28, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200955C DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Table 3. SKY65127-11 Recommended Operating Conditions Parameter Symbol Minimum Supply voltage (VCC1, VCC2, VC_BIAS, VREF1, VREF2) VCC Operating frequency f 730 Operating temperature TC –40 Typical Maximum Units 5 V +25 770 MHz +85 °C Table 4. SKY65127-11 Electrical Specifications (Note 1) (VCC1 = VCC2 = VREF1 = VREF2 = VC_BIAS = 5 V, f = 750 MHz, TC = +25 °C, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical 730 Max Units 770 MHz Frequency f Small signal gain |S21| PIN = –15 dBm 35.0 36.5 dB Input return loss |S11| PIN = –15 dBm 8.5 9.6 dB Output return loss |S22| PIN = –15 dBm 9 12 dB 1 dB Output Compression Point OP1dB CW 3rd Order Output Intercept Point OIP3 POUT/tone = +25 dBm, tone spacing = 1 MHz Noise Figure NF CW Adjacent Channel Leakage Ratio @ POUT = +25 dBm ACLR1 Adjacent Channel Leakage Ratio @ POUT = +25 dBm +47 +32.5 dBm +48 dBm 4.4 6.0 dB WCDMA test model #1: 64 DPCH, 5 MHz offset –46.0 –45.0 dBc ACLR2 WCDMA test model #1: 64 DPCH, 10 MHz offset –63.5 –55.0 dBc Power Added Efficiency PAE CW, POUT @ OP1dB Quiescent Current ICCQ No RF signal 35 38 % 270 mA Note 1: Performance is guaranteed only under the conditions listed in this Table. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200955C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 28, 2012 3 DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Typical Performance Characteristics (VCC1 = VCC2 = VREF1 = VREF2 = VC_BIAS = 5 V, f = 750 MHz, TC = +25 °C, Unless Otherwise Noted) Figure 3. Small Signal Gain vs Frequency Over Temperature Figure 4. Gain vs Output Power Over Temperature (f = 750 MHz) Figure 5. Input Return Loss vs Frequency Over Temperature Figure 6. Output Return Loss vs Frequency Over Temperature Figure 7. OIP3 vs Output Power Over Frequency (Δf = 1 MHz Spacing) Figure 8. OIP3 vs Output Power Over Temperature (Δf = 1 MHz Spacing) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 August 28, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200955C DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Figure 9. ACLR vs Output Power Over Frequency (WCDMA Test Model 1 w/64 DPCH @ 5 MHz Offset) Figure 10. ACLR vs Output power Over Frequency (WCDMA Test Model 1 w/64 DPCH @ 10 MHz Offset) Figure 11. Noise Filter vs Frequency Over Voltage Figure 12. Noise Figure vs Frequency Over Temperature Figure 13. Current vs Output Power Over Frequency Figure 14. Current vs Output Power Over Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200955C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 28, 2012 5 DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Evaluation Board Description The SKY65127-11 Evaluation Board is used to test the performance of the SKY65127-11 PA. An Evaluation Board schematic diagram is provided in Figure 15. Table 5 provides the Bill of Materials (BOM) list for Evaluation Board components. An assembly drawing for the Evaluation Board is shown in Figure 16. An Evaluation Board layer detail drawing is shown in Figure 17. Layer detail physical characteristics are noted in Figure 18. Circuit Design Considerations The following design considerations are general in nature and must be followed regardless of final use or configuration: 1. Paths to ground should be made as short as possible. 2. The ground pad of the SKY65127-11 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 shunt as much heat as possible from the device. Therefore, design the connection to the ground pad to dissipate the maximum wattage produced by the circuit board. Multiple vias to the grounding layer are required. NOTE: A poor connection between the slug and ground increases junction temperature (TJ), which reduces the lifetime of the device. Evaluation Board Test Procedure Step 1: Connect RF test equipment to the input/output SMA connectors. Step 2: Connect DC ground. Step 3: Connect all VCC, VREF, and VC_BIAS lines to a +5 V supply. Verify that the ICCQ current is approximately 270 mA. Step 4: Apply RF signal data at –20 dBm and observe that the output level is approximately +16.5 dBm or that the gain of the device is approximately 36.5 dB. NOTE: It is important to adjust the VCC1 and VCC2 voltage sources so that +5 V is measured at the board. High collector currents drop the collector voltage significantly if long leads are used. Adjust the bias voltage to compensate. Figure 15. SKY65127-11 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 August 28, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200955C DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Table. 5. SKY65127-11 Evaluation Board Bill of Materials (BOM) Component Value Size Product # Manufacturer Manufacturer’s Part # Characteristics C1, C6, C11 3300 pF 0603 SK204-000-007 Murata GRM188R71H332KA01D X7R, 50 V, ±10% C2, C3, C7, C10 68 pF 0603 540R23-023 Murata GRM1885C1H680JA01D COG, 50 V, ±5% C8, C12, C13 10 μF 1206 5404R91-005 TDK C3216X5R0J106KT X5R, 6 V, ±10% R1 360 Ω 0603 5424R20-038 Rohm MCR03EZHUJ360 50 V, 0.063 W, ±5% R2 330 Ω 0603 5424R20-037 Rohm MCR03EZHUF330 50 V, 0.063 W, ±5% Figure 16. Evaluation Board Assembly Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200955C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 28, 2012 7 DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Figure 17. Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 August 28, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200955C DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Figure 18. Layer Detail Physical Characteristics Application Circuit Notes Center Ground. It is extremely important to sufficiently ground the bottom ground pad of the device for both thermal and stability reasons. Multiple small vias are acceptable and will work well under the device if solder migration is an issue. GND (pins 1, 2, 3, 8, 10, 17, 19, and 20). Attach all ground pins to the RF ground plane with the largest diameter and lowest inductance via that the layout allows. Multiple small vias are acceptable and will work well under the device if solder migration is an issue. N/C (pins 5, 12, 14, 15, and 18). These pins are open and may or may not be connected to ground. VC_BIAS (pin 4). The bias supply voltage for stages 1 and 2, typically set to +5 V. VREF1 (pin 6). Bias reference voltage for amplifier stage 1. This signal should be operated over the same voltage range as VCC with a nominal voltage of +5 V. VREF2 (pin 7). Bias reference voltage for amplifier stage 2. This signal should be operated over the same voltage range as VCC with a nominal voltage of +5 V. RF_OUT (pin 9). Amplifier RF output pin (ZO = 50 Ω). The module includes an onboard internal DC blocking capacitor. All impedance matching is provided internal to the module. VCC2 (pin 11). Supply voltage for the output (final) stage collector bias (typically +5 V). To bypass VCC2, capacitors C10, C11, and C12 (see Figure 15) should be placed in the approximate location shown on the Evaluation Board, although exact placement is not critical. VCC1 (pin 13). Supply voltage for the first stage collector bias (typically +5 V). To bypass VCC1, capacitors C6, C7, and C8 (see Figure 15) should be placed in the approximate location shown on the Evaluation Board, although exact placement is not critical. RF_IN (pin 16). Amplifier RF input pin (ZO = 50 Ω). The module includes an onboard internal DC blocking capacitor. All impedance matching is provided internal to the module. Package Dimensions The PCB layout footprint for the SKY65152-11 is shown in Figure 35. Typical case markings are shown in Figure 36. Package dimensions for the 20-pin MCM are shown in Figure 37, and tape and reel dimensions are provided in Figure 38. 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 SKY65127-11 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. 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. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200955C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 28, 2012 9 DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Figure 19. SKY65127-11 PCB Layout Footprint Figure 20. SKY65127-11 Typical Case Markings Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 August 28, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200955C DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Figure 21. SKY65127-11 20-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200955C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 28, 2012 11 DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Figure 22. SKY65127-11 20-Pin MCM Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 August 28, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200955C DATA SHEET • SKY65127-11 700-800 MHZ HIGH LINEARITY PA Ordering Information Model Name SKY65127-11 700-800 MHz High Linearity Power Amplifier Manufacturing Part Number SKY65127-11 Evaluation Board Part Number TW17-D510-001 Copyright © 2008, 2009, 2012 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. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. 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Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. 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 200955C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 28, 2012 13