PRELIMINARY DATA SHEET SKY65112-84LF: Linear Power Amplifier Driver, 0.5 W 400–2300 MHz Features ● ● ● ● ● Functional Block Diagram Wideband: 400–2300 MHz High linearity: OIP3 > 39 dBm; P1 dB > 27 dBm @ 940 MHz High gain > 18 dB Single DC supply: 5 V Low-cost SMT, lead (Pb)-free package, RoHS-compliant Applications ● ● ● ● UHF TV broadcast TETRA radio GSM/CDMA/EDGE 450/750/850/900MHz bands DCS, PCS, W-CDMA, UMTS Description Skyworks SKY65112 is a high performance power amplifier with superior linearity and output power. The device is fabricated using Skyworks high-reliability Heterojunction Bipolar Transistor (HBT) technology. The device utilizes low-cost, industry-standard, thermally enhanced SOIC-8 lead (Pb)-free, RoHS-compliant packaging. The SKY65112 incorporates on-chip active bias which achieves excellent gain tracking over temperature and voltage variations. The SKY65112 is designed for ultrahigh linearity and wideband operation, making it a cost effective building block for many transceiver applications. The SKY65112 is rated for operation from -40 to +85 °C. It operates from a 5 V power supply voltage. An evaluation board is available upon request. NEW Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200453 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • December 19, 2006 1 PRELIMINARY DATA SHEET • SKY65112-84LF Electrical Specifications TA = 25 °C, VCC = 5 V, ICCQ = 260 mA, ZO = 50 Ω, as measured in the evaluation board, unless otherwise noted Parameter Symbol Conditions Operational bandwidth PAE Gain |S21| @ P1 dB OP1 dB Output IP3 Typ. 440 Total power-added efficiency Output P1 dB Min. OIP3 Max. Unit 460 MHz 27 % 22 dB 26.5 dBm @ 14 dBm POUT/Tone, 1 MHz Spacing 34 dBm Second harmonic POUT @ 450 MHz = 10 dBm -40 dBc Third harmonic POUT @ 450 MHz = 10 dBm -86 dBc 260 mA Supply current ICCQ Reference current IREF 2 Operational bandwidth 920 Total power-added efficiency PAE Gain |S21| Output P1 dB @ P1 dB OP1 dB mA 960 MHz 22 % 18 dB 27.2 dBm @ 14 dBm POUT/Tone, 1 MHz Spacing 39 dBm Second harmonic POUT @ 940 MHz = 10 dBm -65 dBc Third harmonic POUT @ 940 MHz = 10 dBm -90 dBc mA Output IP3 OIP3 Supply current ICCQ 260 Reference current IREF 2 Operational bandwidth Total power-added efficiency Gain 1930 PAE @ P1 dB mA 1990 38 MHz % |S21| 15.1 dB OP1 dB 30 dBm @ 14 dBm POUT/Tone, 1 MHz Spacing 39 dBm POUT @ 1.96 GHz = 10 dBm -58 dBc Third harmonic POUT @ 1.96 GHz = 10 dBm -79 dBc CDMA (IS95) channel power @ -50 dBc ACPR, 1960 MHz 22 dBm Output P1 dB Output IP3 OIP3 Second harmonic Supply current ICCQ 260 mA Reference current IREF 2 mA Operational bandwidth 2110 Total power-added efficiency PAE Gain Output P1 dB Output IP3 2170 MHz 38 % |S21| 15.5 dB OP1 dB 29 dBm OIP3 @ P1 dB @ 14 dBm POUT/Tone, 1 MHz Spacing 37 dBm Second harmonic POUT @ 2.14 GHz = 10 dBm -55 dBc Third harmonic POUT @ 2.14 GHz = 10 dBm -72 dBc W-CDMA channel power @ -45 dBc ACLR, 2140 MHz 20 dBm Supply current ICCQ 260 mA Reference current IREF 2 mA Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 December 19, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200453 Rev. B PRELIMINARY DATA SHEET • SKY65112-84LF Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Unit Supply voltage VCC 5 V Reference current IREF 2 mA Reference voltage VREF 5 V Operating frequency 400 Supply current 2300 ICCQ Junction temperature MHz 260 TJ mA 150 °C Typical Performance Data 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 lS11l lS22l lS21l lS11l lS22l 15 10 5 0 -5 -10 -15 -20 -25 -30 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 0.37 0.39 0.41 0.43 0.45 0.47 0.49 0.51 0.53 Frequency (GHz) Frequency (Hz) SKY65112 Tuned for 450 MHz VCC = 5 V, VREF = 5 V, ICCQ = 260 mA SKY65112 Tuned for 940 MHz VCC = 5 V, VREF = 5 V, ICCQ = 260 mA ICC P1 dB = 26.5 dBm 23.9 25.6 26.9 28.0 P1 dB = 27 dBm Gain 19 ICC 900 18 800 17 700 16 600 15 500 14 400 13 300 12 200 11 100 10 ICC (mA) 22.1 470 450 430 410 390 370 350 330 310 290 270 250 230 29.0 ICC (mA) 23 22 21 20 19 18 17 16 15 14 13 12 11 20.1 Gain (dB) Gain Gain (dB) lS21l 20 lSijl (dB) lSijl (dB) TA = 25 °C, VCC = 5 V, ICCQ = 260 mA, ZO = 50 Ω, unless otherwise noted 0 18.2 20.2 22.3 24.3 26.0 27.2 28.0 POUT (dBm) POUT (dBm) SKY65112 Gain, ICC vs. POUT VCC = 5 V, VREF = 5 V, ICCQ = 450 mA, F = 450 MHz SKY65112 Gain, ICC vs. POUT VCC = 5 V, VREF = 5.1 V, ICCQ = 260 mA, F = 940 MHz Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200453 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • December 19, 2006 3 PRELIMINARY DATA SHEET • SKY65112-84LF 39 41 38 40 36 OIP3 (dBm) OIP3 (dBm) 37 35 34 33 39 38 37 32 36 31 30 35 8 10 12 14 16 18 20 8 22 10 12 14 16 18 20 POUT/Tone (dBm) POUT/Tone (dBm) SKY65112 OIP3, VCC = 5 V, VREF = 5 V, ICCQ = 260 mA, F = 450 MHz, Tone Spacing = 1 MHz SKY65112 OIP3, VCC = 5 V, VREF = 5 V, ICCQ = 260 mA, F = 940 MHz, Tone Spacing = 1 MHz lS11l lS21l lS22l 15 Gain (dB) 0 -5 -10 -15 -20 -25 1.98 2.02 2.06 2.10 2.14 2.18 ICC 750 700 650 600 550 500 450 400 350 300 250 200 15.1 17.1 19.1 21.1 23.0 24.9 26.7 28.6 30.2 31.5 32.4 Frequency (GHz) POUT (dBm) SKY65112 Tuned for 1960–2140 MHz VCC = 5 V, VREF = 5 V, ICCQ = 260 mA SKY65112 Gain, ICC vs. POUT VCC = 5 V, VREF = 5 V, ICCQ = 260 mA, F = 1960 MHz 42 41 40 POUT (dBm) SKY65112 Gain, ICC vs. POUT VCC = 5 V, VREF = 5 V, ICCQ = 260 mA, F = 2140 MHz OIP3 (dBm) P1 dB = 29 dBm Gain ICC 16.0 700 15.5 650 15.0 600 14.5 550 14.0 500 13.5 450 13.0 400 12.5 350 12.0 300 11.5 250 11.0 200 10.5 150 15.5 17.4 19.4 21.6 23.6 25.6 27.4 28.8 29.6 30.1 ICC (mA) Gain (dB) 1.94 16.0 15.5 15.0 14.5 14.0 13.5 13.0 12.5 12.0 11.5 11.0 10.5 ICC (mA) lSijl (dB) 10 5 -30 1.90 P1 dB = 30.2 dBm Gain 20 39 38 37 36 35 8 10 12 14 16 18 20 22 POUT/Tone (dBm) SKY65112 OIP3, VCC = 5 V, ICCQ = 260 mA, VREF = 5 V, F = 1960 MHz, Tone Spacing = 1 MHz Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 22 December 19, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200453 Rev. B PRELIMINARY DATA SHEET • SKY65112-84LF 49 47 OIP3 (dBm) 45 43 41 39 37 35 8 10 12 14 16 18 20 22 POUT/Tone (dBm) SKY65112 OIP3, VCC = 5 V, VREF = 5 V, ICCQ = 260 mA, F = 2140 MHz, Tone Spacing = 1 MHz SKY65112 IS-95, F = 1960 MHz VCC = 5 V, VREF = 5 V, ICCQ = 260 mA, Clock freq 9.8304 MHz SKY65112 3GPP WCDMA, F = 2140 MHz QPSK 45° Offset, Filter Root Cosine, Roll-off Factor 0.22, Symbol Rate 3.84 Msym/s VCC = 5 V, VREF = 5 V, ICCQ = 260 mA, Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200453 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • December 19, 2006 5 PRELIMINARY DATA SHEET • SKY65112-84LF Absolute Maximum Ratings Characteristic Package and Handling Information Value RF input power (PIN) 22 dBm Supply voltage (VCC) 8V Reference current (IREF) 10 mA Total supply current (ICC + IREF) 500 mA Power dissipation (PDISS) Case operating temperature(1) (TC) 2W -40 to +85 °C Storage temperature (TST) -50 to +150 °C Junction temperature (TJ) -50 to +150 °C Thermal resistance (θJC) 42 °C/W 1. Case temperature is defined as the temperature of the surface of the exposed paddle where it is soldered to the printed circuit board ground. This surface must be connected via the lowest possible thermal impedance to an adequate heatsink. Performance is guaranteed only under the conditions listed in the specifications table and is not guaranteed under the full range(s) described by the Absolute Maximum specifications. Exceeding any of the absolute maximum/minimum specifications may result in permanent damage to the device and will void the warranty. 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. Please refer to Skyworks solder reflow application note, available at www.skyworksinc.com, for instructions on mounting the SKY65112 to a printed circuit board. 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. Pin Out CAUTION: Although this device is designed to be as robust as possible, ESD (Electrostatic Discharge) 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 must be employed at all times. 1 8 2 7 3 6 4 5 Exposed Paddle Pin Descriptions Technical Description The SKY65112 is a single stage linear amplifier. The device should be externally matched for optimum gain and linearity using external passive components on the input and on the output ports. These external components allow the amplifier to be optimized for the desired operating frequency. The RF input is internally connected to pins 2, 3 and 4 via different lengths of bond wire. The inductances produced by these bond wires can be utilized in the impedance matching circuit on the amplifier’s input port. Pin No. Name 1 VREF Descriptions 2, 3, 4 RF_In RF input 5 GND Ground 6, 7 RF_Out 8 VCC Supply voltage Backside GND Exposed paddle package ground Reference voltage input RF output The RF output is internally connected to pins 6 and 7 for current sharing. Both of these pins should be connected externally to the same printed circuit board trace. The SKY65112 contains a bias circuit for optimum temperature tracking performance. An external resistor is used to set the bias current level. The value of this resistor can be selected to set the amplifier operational mode to Class A, B, or AB, allowing for optimization of linearity and efficiency. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 December 19, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200453 Rev. B PRELIMINARY DATA SHEET • SKY65112-84LF Evaluation Board Test Procedure The SKY65112 Evaluation Board is used to test the performance of the SKY65112 power amplifier driver. Schematic diagrams for evaluation circuits, optimized for output third order intercept (OIP3) are shown below. Evaluation board schematics and bills of materials are shown for GSM operation at 940 MHz and also for DCS/UMTS/CDMA operation near 2 GHz. The mounting footprint for the SKY65112 is shown in the mounting footprint schematic. Use the following procedure to set up the SKY65112 Evaluation Board for testing. Refer to the mounting footprint schematic for guidance: The evaluation board also contains a probe fixture section which makes it possible to conveniently measure scattering parameters with ground-signal-ground probes and a vector network analyzer, directly at the input and output pins of the package. Scattering parameters measured in this fixture are available upon request. 1. Connect a 5 V supply to VCC. If available, enable the current limiting function of the power supply to 520 mA. 2. Connect a positive supply to VREF. 3. Connect a signal generator to the RF signal input port. Set it to the desired RF frequency at a power level of -15 dBm or less to the evaluation board, but do not enable the RF signal. 4. Connect a spectrum analyzer to the RF signal output port. 5. Enable the power supply. 6. Adjust VREF to set supply current (ICCQ) to 260 mA 7. Enable the RF signal. Circuit Design Configurations 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 exposed paddle ground pad of the SKY65112 power amplifier has special electrical and thermal grounding requirements. This paddle 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 power produced to the circuit board. Multiple vias to the grounding layer are required. NOTE: Junction temperature (TJ) of the device increases with a poor connection to the exposed paddle and ground. This reduces the lifetime of the device. 8. Take measurements. CAUTION: If any of the input signals exceed the rated maximum values, the SKY65112 Evaluation Board can be permanently damaged. Recommended Solder Reflow Profiles Refer to the “Recommended Solder Reflow Profile” Application Note. Tape and Reel Information Refer to the “Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation” Application Note. 3. External bypass capacitors are required on the VCC line and on pins 1. 4. Bias resistors R2 and R4 and the voltage applied to VREF determine the reference current, IREF, into pin 1. This current controls the supply current through the amplifier stage. A suggested matching circuit is shown in the evaluation board schematic. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200453 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • December 19, 2006 7 PRELIMINARY DATA SHEET • SKY65112-84LF Evaluation Board Schematic VCC C10 C11 VREF R3 R4 C12 C6 C8 C7 R2 C9 L4 C5 1 8 2 7 3 6 4 5 I REF M1 RF In M3 M4 M6 M2 N/C M8 RF Out M7 Exposed Paddle M5 Evaluation Board Component Values vs. Frequency Component 450 MHz 940 MHz 1960 MHz 2140 MHz R1 NA NA 51 Ω 51 Ω R2 51 Ω 51 Ω 51 Ω 51 Ω R3 51 Ω 51 Ω 1.2 kΩ 1.2 kΩ R4 1.2 kΩ 1.2 kΩ NA NA L4 82 nH (0805) 82 nH (0805) 47 nH (0603) 47 nH (0603) C5 NA NA NA NA C6 NA NA NA NA C7 100 pF 22 pF 10 pF 10 pF C8 2.2 µF 0.1 µF 0.1 µF 0.1 µF C9 2.2 µF 0.1 µF 0.1 µF 0.1 µF C10 10 µF 2.2 µF 2.2 µF 2.2 µF C11 10 µF 4 µF 4 µF 4 µF C12 10 µF 4 µF 4 µF 4 µF M1 33 nH 10 nH 100 pF 100 pF M2 4.7 pF 2.2 pF 2.2 pF 2.2 pF M3 10 nH 15 nH NA NA M4 10 Ω 0Ω NA NA M5 5.6 nH 1 nH NA NA M6 27 pF 1.5 nH NA NA M7 5.6 nH 10 pF 3.9 pF 3.9 pF M8 1000 pF 100 pF 100 pF 100 pF Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 December 19, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200453 Rev. B PRELIMINARY DATA SHEET • SKY65112-84LF Test Board Assembly 450, 940 MHz C11 C12 R4 Test Board Assembly 1960, 2140 MHz C11 C12 R3 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200453 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • December 19, 2006 9 PRELIMINARY DATA SHEET • SKY65112-84LF Evaluation Board Test Configuration Mounting Footprint 6.985 Power Supply 0.381 1.800 Input Signal Generator SKY65112 Evaluation Board Output 1.524 Minimum Power Meter or Spectrum Analyzer 1.270 2.710 SOIC-8 0.635 Minimum 0.050 (1.27 mm) BSC Pin 8 Pin 1 Indicator 0.244 (6.20 mm) 0.228 (5.80 mm) 0.381 diameter plated-through via (minimum 20 recommended) Pin 1 0.066 (1.65 mm) ± 0.005 (0.12 mm) 0.060 (1.73 mm) Max. 0.049 (1.24 mm) 0.016 (0.41 mm) 0.016 Max. (0.41 mm) x 45° Chamfer Exposed Heat Slug 0.115 (2.65 mm) ± 0.008 (0.12 mm) Dimensions in mm. 0.020 (0.51 mm) Max. 8° Max. 0.158 (4.00 mm) 0.150 (3.80 mm) 0.010 (0.25 mm) 0.007 (0.17 mm) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 December 19, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200453 Rev. B PRELIMINARY DATA SHEET • SKY65112-84LF Copyright © 2002, 2003, 2004, 2005, 2006, 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 200453 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • December 19, 2006 11