SKY65105

PRELIMINARY DATA SHEET SKY65105: 1700 – 2200 MHz Linear Power Amplifier Applications • PCS/DCS/UMTS • Repeaters • WLL and ISM bands • Mobile radio • Telematics Description Skyworks SKY65105 Power Amplifier (PA) is a fully matched, 12-pin Multi-Chip Module (MCM) surface mount module, developed for Personal Communications System (PCS), Digital Communications System (DCS), and Universal Mobile Telephone System (UMTS) applications. Wireless Local Loop (WLL) and Industrial, Scientific, Medical (ISM) applications are also supported. This small, power-efficient PA has a full 1700 to 2200 MHz bandwidth coverage packed into a single compact package. All active circuitry in the module is contained in a single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC). The SKY65105 is manufactured with Skyworks Aluminum (Al) GaAs Heterojunction Bipolar Transistor (HBT) process, which allows for single supply operation while maintaining high efficiency and good linearity. Figure 1 shows a functional block diagram for the SKY65105. The SKY65105 is packaged in a small, 12-pin 8 x 8 mm Multi-Chip Module (MCM) package. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Features • Typical POUT of 30 dBm • High linearity • Low power consumption • Single +5 V supply • MCM (12-pin, 8 x 8 mm) Pb-free (MSL3, 260 °C per JEDEC J-STD-020) package Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances) compliant packaging. VREF VCC1 VCC2 Driver Stage Bias Power Stage Bias RFIN Input Match PA Interstage Match PA Output Match RFOUT GND C1220 Figure 1. SKY65105 Functional Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200085D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 13, 2007 1 PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER VCC1 GND 11 12 10 GND RFIN VREF GND 1 9 GND RFOUT GND 2 8 3 7 4 5 6 VCC2 GND GND S456 Figure 2. SKY65105 Pinout– 12-Pin MCM Package (Top View) Table 1. SKY65105 Signal Descriptions Pin # 1 2 3 4 5 6 GND RFIN VREF VCC2 GND GND Name Ground RF input Reference voltage Supply voltage Ground Ground Description Pin # 7 8 9 10 11 12 GND RFOUT GND GND GND VCC1 Name Ground RF output Ground Ground Ground Supply voltage Description Technical Description The SKY65105 is comprised of two amplifier stages. The matching circuits for the input stage, inter-stage, and output stage are contained within the device. The bias circuits for both input and output stages are included within the device for optimum temperature tracking performance. The SKY65105 is internally matched for optimum linearity and efficiency. The input and output stages are independently supplied using the VCC1 and VCC2 supply lines, pins 12 and 4 respectively. The bias reference voltage is supplied using a common VREF (pin 3) line. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY65105 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Typical performance characteristics over temperature of the SKY65105 are illustrated in Figures 3 through 10. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 2 July 13, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200085D PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER Table 2. SKY65105 Absolute Maximum Ratings Parameter RF output power Supply voltage (VCC1 and VCC2) Reference voltage Case operating temperature Storage temperature Note: Symbol POUT VCC VREF TC TST Min Typical Max 31 6 4 Units dBm V V °C °C –40 –55 +85 +125 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. Table 3. SKY65105 Recommended Operating Conditions Parameter Supply voltage (VCC1 and VCC2) Reference voltage Operating frequency VCC VREF FO 1700 Symbol Min Typical 5 3.6 1900 2200 Max Units V V MHz Table 4. SKY65105 Electrical Characteristics (VCC = 5.0 V, VREF = 3.6 V, Frequency = 1900 MHz, TC = 25 °C, unless otherwise noted) Parameter Analog Inputs Frequency range Quiescent current Small signal gain Output power Efficiency Noise Figure (NF) Output IP3 IQ G POUT PAE NF OIP3 Two tones with 100 kHz spacing, PIN = –1 dBm per tone f = 1960 MHz f = 2140 MHz 38 PIN = –15 dBm PIN = 7 dBm PIN = 7 dBm 22 29 30 1700 1900 135 23 30 37 4.5 42 6.0 2200 170 25 MHz mA dB dBm % dB dBm Symbol Test Conditions Min Typical Max Units POUT @ ACPR = –45 dBc POUt @ ACLR = –45 dBc Note: POUT_ACPR POUT_ACLR 23 18 25 20 dBm dBm The above specifications apply only to the 1900 MHz operating frequency. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200085D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 13, 2007 3 PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER 33 32 31 30 29 28 27 26 25 24 23 22 0 2 4 6 8 45 40 35 POUT (dBm) PAE (%) 30 25 20 15 10 –40 oC +25 oC +85 oC 10 –40 oC +25 oC +85 oC 0 2 4 6 8 10 PIN (dBm) PIN (dBm) Figure 3. Typical POUT vs PIN Over Temperature Figure 4. Typical PAE vs PIN Over Temperature 26 7 Noise Figure (dB) 24 –40 oC +25 oC +85 oC 6 –40 oC +25 oC +85 oC Gain (dB) 22 5 20 4 18 1700 3 1800 1900 2000 2100 2200 1700 1800 1900 2000 2100 2200 Frequency (MHz) Frequency (MHz) Figure 5. Typical Small Signal Gain vs Frequency Over Temperature Figure 6. Typical Noise Figure vs Frequency Over Temperature 46 44 34 33 32 31 OIP3 (dBm) 42 40 38 36 1700 P1dB(dBm) 30 29 28 27 26 25 –40 +25 +85 C 1800 1900 2000 2100 2200 o C o C o –40 oC +25 oC +85 oC 1700 1800 1900 2000 2100 2200 24 Frequency (MHz) Frequency (MHz) Figure 7. Typical OIP3 vs Frequency Over Temperature Figure 8. Typical P1dB vs Frequency Over Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 4 July 13, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200085D PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER –35 –40 –45 –30 –40 +25 +85 C o C o C o –35 –40 –40 oC +25 oC +85 oC ACPR (dBc) –50 –55 –60 –65 –70 10 12 14 16 18 20 22 24 26 28 ACLR (dBc) –45 –50 –55 –60 –65 10 12 14 16 18 20 22 24 26 POUT (dBm) POUT (dBm) Figure 9. Typical ACPR vs POUT Over Temperature (Using CDMA IS-95 Downlink Signal With Nine Channels) Figure 10. Typical ACLR vs POUT Over Temperature (Using WCDMA 3GPP Downlink Test Model 1 With 64 DPCH) Evaluation Board Description Skyworks SKY65105 Evaluation Board is used to test the performance of the SKY65105 PA. The Evaluation Board schematic diagram is shown in Figure 11. The schematic shows the basic design of the board for the 1700 to 2200 MHz range. An assembly drawing for the Evaluation Board is shown in Figure 12 and the layer detail is provided in Figure 13. 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 SKY65105 PA 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 amplifier. As such, design the connection to the ground pad to dissipate the maximum wattage produced to the circuit board. Multiple vias to the grounding layer are required. 3. Two external output bypass capacitors (0.01 µF and 4.7 µF) are required on the VCC1 (pin 12) supply input. The same two capacitors are also required on the VCC2 (pin 4) supply input. Both capacitors should be placed in parallel between the supply line and ground. Also, a bypass capacitor of 0.01 µF is required on the VREF input (pin 3). See Figure 11 for a detailed diagram. 4. VCC1 (pin 12) and VCC2 (pin 4) may be connected together at the supply. 5. At the RF input (pin 2), a DC blocking capacitor is required. 6. The RF output includes an onboard internal DC blocking capacitor. All impedance matching is provided internally. Therefore, the application only needs to provide a good 50 Ω load. Testing Procedure Use the following procedure to set up the SKY65105 Evaluation Board for testing. Refer to Figure 14 for guidance: 1. Connect a +5.0 V supply voltage to VCC1 and VCC2, and +3.6 V supply voltage to VREF. If available, enable the current limiting function of the power supplies to 1.0 A for the +5.0 V supply current and 30 mA for the +3.6 V supply current. 2. Connect a signal generator to the RF signal input port. Set it to the desired RF frequency at a power level of 7 dBm or less to the Evaluation Board but do NOT enable the RF signal. 3. Connect a spectrum analyzer to the RF signal output port. 4. Enable the power supply. 5. Enable the RF signal. 6. Take measurements. CAUTION: If the input signal exceeds the rated power, the SKY65105 Evaluation Board can be permanently damaged. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200085D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 13, 2007 5 PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER +5 V C1 0.01 µF C2 4.7 µF VCC1 12 1 11 10 9 T1 RF in C5 4.7 pF T2 50 Ω microstrip T3 50 Ω microstrip RF out RFIN VREF 2 3 4 5 6 8 7 RFOUT C6 0.01 µF VCC2 C3 0.01 µF +3.6 V Notes: 1) The device ground pad provides both a thermal and electrical ground. This ground path is critical and must be as short as possible. 2) Transmission line lengths T1 and T2 should be minimized. C4 4.7 µF +5.0 V S458 Figure 11. Evaluation Board Schematic, 1700 MHz to 2200 MHz C1 8x8 PA EVALUATION BD. C2 C5 C6 J1 (RF In) C3 C4 J2 (RF Out) VCC1 VREF VCC2 GND GND GND J3 Figure 12. Evaluation Board Assembly Diagram C1257b Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 6 July 13, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200085D PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER Layer 1: Top - Metal Layer 2: Inner Traces Layer 3: Solid Ground Plane C1253d Figure 13. Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200085D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 13, 2007 7 PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER Power Supply Signal Generator Input SKY65105 Evaluation Board Output Power Meter or Spectrum Analyzer S457 Figure 14. SKY65105 Evaluation Board Testing Configuration Package Dimensions Figure 15 shows the package dimensions for the 12-pin MCM, and Figure 16 provides the tape and reel dimensions. 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. For packaging details, refer to the Skyworks Application Note, Tape and Reel, document number 101568. 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 SKY65105 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 Electrostatic Discharge (ESD) Sensitivity The SKY65105 is a static-sensitive electronic device. Do not operate or store near strong electrostatic fields. Take proper ESD precautions. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 8 July 13, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200085D PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER 6x 4.093 8.385 Pin 1 Indicator B C Top (3.4) 0.3 Solder Mask Opening 0.15 Metal Pad Pin 1 Indicator (2.7) 8.385 0 4x 1.91 A 6x 4.093 4x 1.65 1.45 ± 0.10 0.05 A B C 0.025 A A 0.08 0 12x SMT Pad 0.1 M A B C 0.025 M A 5.08 Solder Mask Opening 0.05 A B C 0.793 ± 0.075 (0.1) Metal Pad Edge 0.81 ± 0.03 Detail A Pad Scale: 2x 3x - This rotation 3x - Rotated 180o 3x - Rotated 90o 3x - Rotated 90o All measurements are in millimeters S742 Figure 15. SKY65105 12-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200085D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 13, 2007 9 PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER 12.00 ± 0.10 ∅1.50± 0.10 2.00 ± 0.10 4.00 ± 0.10 B Pin #1 1.75 ± 0.10 A A 7.50 ± 0.10 16.00 +0.30/-0.10 B 8o Max ∅1.50 ± 0.25 5o Max 0.318 ± 0.013 8.89 ± 0.10 8.88 ± 0.10 2.14 ± 0.10 A Notes: 1. Carrier tape: black conductive poly carbonate or polystyrene. 2. Cover tape material: transparent conductive PSA. 3. Cover tape size: 13.3 mm width. 4. All measurements are in millimeters. Figure 16. SKY65105 12-Pin MCM Tape and Reel Dimensions B C1221 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 10 July 13, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200085D PRELIMINARY DATA SHEET • SKY65105 POWER AMPLIFIER Ordering Information Model Name SKY65105 1700-2200 MHz Linear Power Amplifier Manufacturing Part Number SKY65105-21 TW10-D840 Evaluation Kit Part Number Copyright © 2006, 2007 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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