PRELIMINARY DATA SHEET SKY65171-21: 1930 – 2170 MHz, 0.5 W Power Amplifier Applications Description • CDMA2000 cellular band Skyworks SKY65171-21 is a fully-matched, 0.5 W Power Amplifier (PA) with high efficiency, designed for use in the 1930 to 2170 MHz band. • PCS1900 band • WCDMA, Bands I and II • Femtocell transmitters Features • Wideband frequency operation: 1930 to 2170 MHz • High gain: > 27 dB • OP1dB: > +27 dBm • ACPR ≤ –48 dBc for POUT ≥ +18 dBm • ACLR ≤ –45 dBc for POUT ≥ +18 dBm • Single DC supply: 5 V • Internal RF match and bias circuits • PA on/off control voltage • Small footprint, MCM (20-pin, 6 x 6 mm) SMT package (MSL3, 260 °C per JEDEC J-STD-020) The device is fabricated using Skyworks high reliability Indium Gallium Phosphide (InGaP) Heterojunction Bipolar Transistor (HBT) technology. This process allows for single supply operation while maintaining high efficiency and good linearity. The SKY65171-21 contains all of the active bias and RF matching circuits, which make it easy to integrate into 50 Ω RF systems. The internal input and output match are optimized for gain, 1 dB Compression Point (P1dB), Adjacent Channel Power Ratio (ACPR), Adjacent Channel Leakage Ratio (ACLR),and efficiency when integrated in a 50 Ω system. The primary bias to the SKY65171-21 can be supplied directly from a single 5 VDC supply. The PA is designed to operate with lower current by reducing the bias voltage. The device is internally matched and mounted in a 20-pin, 6 x 6 mm Multi-Chip Module (MCM) Surface-Mounted Technology (SMT) package, which allows for a highly manufacturable low cost solution. The device package and pinout for the 20-pin MCM are shown in Figure 1. A block diagram of the SKY65171-21 is shown in Figure 2. Figure 1. SKY65171-21 Pinout – 20-Pin MCM (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201380B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 14, 2011 1 PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Figure 2. SKY65171-21 Block Diagram Technical Description The SKY65171-21 PA contains all of the needed RF matching and DC biasing circuits. The device is a two-stage, HBT InGaP device optimized for high linearity and power efficiency. These features make the device suitable for wideband digital applications, where PA linearity and power consumption are of critical importance (e.g., femtocell and infrastructure applications). The device has been characterized with standard CDMA2000 and WCDMA modulated signals. Under these stringent test conditions, the device exhibits excellent spectral purity and power efficiency. Electrical and Mechanical Specifications Signal pin assignments and functional pin descriptions are described in Table 1. The absolute maximum ratings of the SKY65171-21 are provided in Table 2. Electrical specifications are provided in Table 3. Typical performance characteristics of the SKY65171-21 are illustrated in Figures 3 through 8. Table 1. SKY65171-21 Signal Descriptions Pin # Name Description Pin # 11 Name GND Description 1 GND Ground Ground 2 RF_IN RF input 12 RF_OUT RF output 3 GND Ground 13 GND Ground 4 PA_EN PA enable 14 GND Ground 5 GND Ground 15 VCC2 Stage 2 collector voltage, 5 V 6 VC_BIAS Bias voltage, 5 V 16 GND Ground 7 GND Ground 17 N/C No connection 8 V_REF1 Bias reference 1 voltage, 5 V 18 GND Ground 9 GND Ground 19 VCC1 Stage 1 collector voltage, 5 V 10 V_REF2 Bias reference 2 voltage, 5 V 20 N/C No connection Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 March 14, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201380B PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Table 2. SKY65171-21 Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Maximum Units RF output power POUT +30 dBm Supply voltage VCC1, VCC2, V_REF1, V_REF2, VC_BIAS 5.5 V PA enable voltage PA_EN Total supply current ICC Storage temperature TST Junction temperature TJ Thermal resistance ΘJC 3 –55 5 V 700 mA +125 °C +150 °C 30 °C/W 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. SKY65171-21 Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units Frequency range f 1930 2170 MHz Supply voltage (Note 1) VCC1, VCC2 4.75 5.00 5.25 V Bias voltage (Note 1) VC_BIAS 4.75 5.00 5.25 V 2.60 2.75 V 5 V ` mA V_REF1, V_REF2 PA enable voltage (Note 1) PA_EN 3 Reference current 1 IREF1 5 Reference current 2 IREF2 12 mA PA enable current IPA_EN <1 mA Case operating temperature TC –40 +25 +85 °C Note 1: Voltage levels measured at the pins of the package. The Evaluation Board supply voltage levels may be different. Refer to the Evaluation Board schematic diagram in this Data Sheet. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201380B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 14, 2011 3 PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Table 4. SKY65171-21 Electrical Specifications (Note 1) (VCC1 = VCC2 = V_REF1 = V_REF2 = VC_BIAS = 5 V, PA_EN = +5 V, TC = +25 °C, f = 1960 MHz, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical +27 Max Output power @ 1 dB compression OP1dB CW +28 dBm Small signal gain |S21| CW, PIN = –15 dBm 30 dB Adjacent Channel Power Ratio ACPR1 @750 kHz, POUT = +18 dBm –51 –48 dBc ACPR2 @1.98 MHz, POUT = +18 dBm –66 –63 dBc Adjacent Channel Leakage Ratio ACLR POUT = +18 dBm, with WCDMA test model 1, 64 DPCH –45 dBc 3rd Order Output Intercept Point OIP3 PTONE = +15 dBm, frequency spacing = 1 MHz +36 dBm Quiescent Current IQ No RF input 150 mA Operating current ICC POUT = +18 dBm 180 mA Noise Figure NF 6.5 dB Input return loss |S11| PIN = –15 dBm 10 14 dB Output return loss |S22| PIN = –15 dBm 9 12 dB Voltage Standing Wave Ratio for stable operation VSWR CW 8:1 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 4 Units March 14, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201380B – PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Typical Performance Characteristics (VCC1 = VCC2 = V_REF1 = V_REF2 = VC_BIAS = 5 V, PA_EN = +5 V, TC = +25 °C, f = 1960 MHz, Unless Otherwise Noted) Figure 3. Small Signal Gain vs Frequency Figure 4. Return Loss vs Frequency Figure 5. ACLR Limited Output Power vs Frequency (WCDMA Band I Test Model 1, 64 DPCH, ACLR = –45 dBc) Figure 6. ACLR Limited Output Power vs Frequency (WCDMA Band II Test Model 1, 64 DPCH, ACLR = –45 dBc) Figure 7. ACLR vs. Output Power (WCDMA Band I Test Model 1, 64 DPCH) Figure 8. Current vs Output Power Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201380B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 14, 2011 5 PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Evaluation Board Description Package and Handling Information The SKY65171-21 Evaluation Board is used to test the performance of the SKY65171-21 High Power PA. A schematic diagram of the SKY65171-21 Evaluation Board is shown in Figure 9. An assembly drawing for the Evaluation Board is shown in Figure 10 and the layer detail is provided in Figure 11. The layer detail physical characteristics are noted in Figure 12. 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. Package Dimensions The PCB layout footprint for the SKY65171-21 is provided in Figure 13. Package dimensions for the 20-pin MCM are shown in Figure 14, and tape and reel dimensions are provided in Figure 15. The SKY65171-21 is rated to Moisture Sensitivity Level 3 (MSL3) at 260 °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. Figure 9. SKY65171-21 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 March 14, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201380B PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Figure 10. SKY65171-21 Evaluation Board Assembly Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201380B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 14, 2011 7 PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Figure 11. SKY65171-21 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 March 14, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201380B PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Figure 12. Layer Detail Physical Characteristics *** TBD *** Figure 13. SKY65171-21 PCB Layout Footprint Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201380B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 14, 2011 9 PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Figure 14. SKY65171-21 20-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 March 14, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201380B PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Figure 15. SKY65171-21 20-Pin MCM Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201380B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 14, 2011 11 PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER Ordering Information Model Name SKY65171-21 0.5 W, 1930-2170 MHz Power Amplifier Manufacturing Part Number SKY65171-21 Evaluation Board Part Number TW18-D370 Copyright © 2010, 2011 Skyworks Solutions, Inc. All Rights Reserved. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 March 14, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201380B