PRELIMINARY DATA SHEET SKY77181 Power Amplifier Module for WCDMA / HSDPA (880–915 MHz) Applications Description • WCDMA Handsets The SKY77181 Power Amplifier module is a fully matched 8-pad surface mount module developed for Wideband Code Division Multiple Access (WCDMA) applications. This small and efficient power amplifier packs full coverage of the 880–915 MHz bandwidth into a single compact package. The SKY77181 meets the stringent spectral linearity requirements of High Speed Downlink Packet Access (HSDPA) data transmission with high power added efficiency for power output of up to 28 dBm. Because of high efficiencies attained throughout the entire power range, the SKY77181 delivers unsurpassed talk-time advantages. • HSDPA Handsets • Personal Communications Services (PCS) • Wireless local loop (WLL) Features • No VREF required • Low voltage positive bias - 3.1 V to 4.6 V • Supports low collector voltage operation • Good linearity • High efficiency at all power levels (13.5% at 15 dBm) • Large dynamic range • Low Profile package - 3 x 3 x 1.1 mm • 8-pad configuration The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all active circuitry in the module. The MMIC includes on-board bias circuitry, as well as input and interstage matching circuits. The output match is realized off-chip within the module package to optimize efficiency and power performance into a 50 Ω load. This device is manufactured with Skyworks’ InGaP GaAs Heterojunction Bipolar Transistor (HBT) process that provides for all positive voltage DC supply operation while maintaining high efficiency and good linearity. Primary bias to the SKY77181 is supplied directly from a three-cell Ni-Cd, a single-cell Li-Ion, or other suitable battery with an output in the 3.1 to 4.6 volt range. No VREF voltage is required. Power down is accomplished by setting the voltage on VENABLE to zero volts. Digital bias control can be used to optimize efficiency at high and low power or analog bias control can be used to optimize efficiency over the entire power range. No external supply side switch is needed as typical “off” leakage is a few microamperes with full primary voltage supplied from the battery. • Power down control • InGaP • Digital VENABLE • Digital or Analog VCONTROL Figure 1. SKY77181 Functional Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200643A • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • January 7, 2008 1 PRELIMINARY DATA SHEET SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz) Electrical Target Specifications The following tables list the electrical characteristics of the SKY77181 Power Amplifier. Table 1 lists the absolute maximum ratings, while Table 2 shows the recommended operating conditions to achieve the performance characteristics for WCDMA and HSDPA listed, respectively, in Table 4 and Table 6. Table 3 lists the recommended Supply and Control voltage conditions over Output Power. Standard test configurations for WCDMA and HSDPA are shown in Table 5 and Table 7, respectively,. Table 1. Absolute Maximum Ratings 1 Parameter Symbol Minimum Maximum Unit RF Input Power PIN — 9 dBm Supply Voltage VCC, VBIAS (no RF) — 7 Volts Control Voltage VCONT 0 1.5 Volts Enable Voltage VEN — 3 Volts Operating TCASE –30 110 Storage TSTG –55 125 Ru — 10:1 Case Temperature Ruggedness – no damage 2 °C VSWR 1 No damage assuming only one parameter is set at limit at a time with all other parameters set at nominal value. 2 PO_MAX, all phases, time = 10 sec, continuous modulated signal. Table 2. Recommended Operating Conditions Parameter Symbol WCDMA RF Output Power PO_MAX HSDPA Operating Frequency FO VBATT Supply Voltage 1 VCC DC/DC Bias Voltage VBIAS PA On Enable Voltage VEN PA Off Minimum Nominal Maximum — — 28.5 — — 28.0 880.0 897.5 915.0 3.1 3.4 4.6 0.5 3.4 3.4 3.4 3.6 4.6 1.3 — 2.75 0.0 — 0.4 Unit dBm MHz Volts Volts Volts VCONTROL Range VCONT 0.6 — 1.2 Volts Load Mismatch (all angles) VSWR — 1 — VSWR Case Operating Temperature TCASE –20 +25 +85 °C 1 When VCC supply is 3.1 V, PO_MAX must be backed off 1 dB. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 January 7, 2008 • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • 200643A SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz) PRELIMINARY DATA SHEET Table 3. Recommended Supply Voltage (VCC) and Control Voltage (VCONT) Conditions Over Output Power (PO) PSET (dBm) VCONT VCC –21 0.72 1.15 –10 –11 0.72 1.15 –5 –6 0.81 1.17 0 –1 0.92 1.20 5 4 1.05 1.25 10 9 1.05 1.45 15 14 1.10 1.63 20 19 1.10 2.00 23 22 1.10 2.35 25 24 1.10 2.70 26 25 1.10 2.85 27 26 1.10 3.10 28 27 1.10 3.40 28.5 28 1.10 3.40 WCDMA HSDPA –20 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200643A • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • January 7, 2008 3 PRELIMINARY DATA SHEET SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz) Table 4. SKY77181 Electrical Specifications for WCDMA — Recommended Operating Conditions 1 Refer to Table 5. Standard Test Configuration — WCDMA Voice Mode (Uplink Reference Measurement Channel: 12.2 kbps) WCDMA (Wideband Code Division Multiple Access) 2 Characteristics Gain Conditions Symbol Condition Minimum Typical Maximum High Power GHIGH PO_MAX 27.0 30.0 33.0 Low Power GLOW PO = –10 dBm 12.5 16.0 19.5 — — 1 — — Gain Variation Over Frequency Fixed VCC, Temp, PIN High Power PAEHIGH PO_MAX TCASE = +25 °C 36.0 PAELOW PO = 15 dBm TCASE = +25 °C 12.5 Power Added Efficiency Low Power Error Vector Magnitude EVM — Unit dB dB % — — — 5 ACLR1_H PO_MAX — –38.0 –35.5 ACLR1_L PO ≤ 9 dBm — –45.0 –42.0 % 5 MHz Adjacent Channel Leakage power Ratio 3 dBc ACLR2_H PO_MAX — –50.0 –48.0 ACLR2_L PO ≤ 9 dBm — –56.0 –53.0 — –8 0 — –46 –30 10 MHz Second fH2 Harmonic Suppression VCC = 3.4 V Third Noise Power Input Voltage Standing Wave Ratio (VSWR) fL3 PN_WRX Band VIII_RX: 925– 960 MHz, 45 MHz duplex — –90 –88 PN_WRX2 WCDMARX = 925 MHz WCDMATX = 915 MHz — –69 –65 PN_GPS A-GPS Band: 1570– 1580 MHz — –110 –100 PN_DCS WCDMARX = 1805– 1880 MHz — –111 –100 PN_UMTS 2110–2170 MHZ — –112 –100 PN_BT1 2400–2480 MHz — –107 –90 — 1.5 2.0 — VSWR — Stability S VSWR = 6:1 all phases Total Current ITOTAL PO_MAX Quiescent Current ICQ VCC = 1.5 V VCONT = 1.0 V, no RF Control Current ICONT Digital Enable Current IEN Leakage Current ILEAK dBm/30 kHz — –46 dBm 550 578 mA — 50 75 mA — — 500 μA VEN ≥ 1.0 V — — 5 μA VREF = off VEN = off — 5 10 μA — — 1 Refer to conditions in Table 2 and Table 3, unless otherwise specified. 2 Data in this Table were verified with the signal configuration shown in Table 5. 3 ACLR is specified per 3GPP as the ratio of total in-band power to adjacent power, both measured in 3.84 MHz bandwidth at specified offsets. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 dBm/1 MHz January 7, 2008 • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • 200643A SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz) PRELIMINARY DATA SHEET Table 5. Standard Test Configuration — WCDMA Voice Mode (Uplink Reference Measurement Channel: 12.2 kbps) Parameter Level Spread Code Spread Factor I/Q βc βd βhs Relative Power Information Bit Rate 12.2 kbps — — — — — — DPCCH 15.0 kbps 0 256 Q 8/15 — — –6.57 dB DPDCH 60.0 kbps 16 64 I — 15/15 — –1.087 dB TFCI ON — — — — — — — Table 6. SKY77181 Electrical Specifications for HSPDA — Recommended Operating Conditions 1 Refer to Table 7: Standard Test Configuration — HSDPA Mode HSDPA (High Speed Downlink Packet Access) 2 Characteristics Symbol Gain Conditions Minimum Typical Maximum High Power GHIGH PO_MAX 27.0 30.0 33.0 Low Power GLOW PO = –10 dBm 12.5 16.0 19.5 Fixed VCC, Temp. — — 1 Gain Variation Over Frequency Condition High Power PAEHIGH PO_MAX TCASE = +25 °C 34.0 36.0 — Low Power PAELOW PO = 14 dBm TCASE = +25 °C 11.0 12.0 — — — 5 Power Added Efficiency Error Vector Magnitude EVM Unit dB dB % — % ACLR1_H PO_MAX — –38.0 –35.5 ACLR1_L VCONT = 15 V PO = 9 dBm — –45.0 –42.0 ACLR2_H PO_MAX — –52.0 –48.0 ACLR2_L VCONT = 15 V PO = 9 dBm — –60.0 –53.0 5 MHz offset Adjacent Channel Leakage power Ratio 3 dBc 10 MHz offset 1 Refer to condition in Table 2 and Table 3, unless otherwise specified. 2 Data in this Table were verified with the signal configuration shown in Table 7. 3 ACLR is specified per 3GPP as the ratio of in-band power to adjacent power, both measured in 3.84 MHz bandwidth at specified offsets. Table 7. Standard Test Configuration — HSDPA Mode Parameter Level Spread Code Spread Factor I/Q βc βd βhs Relative Power DPCCH 15 kbps 0 256 Q 12/15 — — –8.17 dB DPDCH 60 kbps 16 64 I — 15/15 — –6.23 dB HS– DPDCH 15 kbps 64 256 Q — 24/15 –2.15 dB On — — — — — — TFCI — Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200643A • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • January 7, 2008 5 PRELIMINARY DATA SHEET SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz) Evaluation Board Description The evaluation board is a platform for testing and interfacing design circuitry. To accommodate the interface testing of the SKY77181, the evaluation board schematic and diagrams are included for preliminary analysis and design. Figure 2 shows the basic schematic of the board for the 880 MHz to 915 MHz range. Figure 2. SKY77181 Evaluation Board Schematic Figure 3. SKY77181 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 January 7, 2008 • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • 200643A SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz) PRELIMINARY DATA SHEET Package Dimensions and Pad Descriptions The SKY77181 is a multi-layer laminate base, overmold encapsulated modular package designed for surface mount solder attachment to a printed circuit board. Figure 4 is a mechanical drawing of the pad layout for this package. Figure 5 provides a recommended phone board layout footprint for the PAM to help the designer attain optimum thermal conductivity, good grounding, and minimum RF discontinuity for the 50-ohm terminals. Figure 6 shows the pad names and the pad numbering convention, which starts with pad 1 at the upper left, and increments counterclockwise around the package. Figure 7 illustrates typical case markings. Figure 4. Dimensional Drawing for 3 x 3 x 1.1.1 mm, 8-pad Package – SKY77181 (All Views) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200643A • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • January 7, 2008 7 PRELIMINARY DATA SHEET SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz) Figure 5. Phone PCB Layout Footprint for 3 x 3 x 1.1 mm, 8-pad Package – SKY77181 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 January 7, 2008 • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • 200643A SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz)PRELIMINARY DATA SHEET than 10 seconds. For details on attachment techniques, precautions, and handling procedures recommended by Skyworks, please refer to Skyworks Application Note: PCB Design and SMT Assembly/Rework, Document Number 101752. Additional information on standard SMT reflow profiles can also be found in the JEDEC Standard J–STD–020. Production quantities of this product are shipped in the standard tape-and-reel format. For packaging details, refer to Skyworks Application Note: Tape and Reel Information – RF Modules, Document Number 101568. Electrostatic Discharge Sensitivity Figure 6. SKY77181 Pad Configuration The SKY77181 is a Class 1 device. Figure 8 lists the Electrostatic Discharge (ESD) immunity level for each non-ground pad of the SKY77181 product. The numbers in Figure 8 specify the ESD threshold level for each pad where the I-V curve between the pad and ground starts to show degradation. ESD testing was performed in compliance with MIL-STD-883E Method 3015.7 using the Human Body Model. If ESD damage threshold magnitude is found to consistently exceed 2000 volts on a given pad, this so is indicated. If ESD damage threshold below 2000 volts is measured for either polarity, numbers are indicated that represent worst case values observed in product characterization. Figure 7. Typical Case Markings – 3 mm x 3 mm Package Package and Handling Information Because of its sensitivity to moisture absorption, this device package is baked and vacuum-packed prior to shipment. Instructions on the shipping container label must be followed regarding exposure to moisture after the container seal is broken, otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The SKY77181 is capable of withstanding an MSL3/260 ° C solder reflow. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. If the part is attached in a reflow oven, the temperature ramp rate should not exceed 3 °C per second; maximum temperature should not exceed 260 °C. If the part is manually attached, precaution should be taken to insure that the part is not subjected to temperatures exceeding 260 °C for more Figure 8. SKY77181 ESD Sensitivity Areas Various failure criteria can be utilized when performing ESD testing. Many vendors employ relaxed ESD failure standards, which fail devices only after “the pad fails the electrical specification limits” or “the pad becomes completely nonfunctional”. Skyworks employs most stringent criteria, fails devices as soon as the pad begins to show any degradation on a curve tracer. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200643A • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • January 7, 2008 9 PRELIMINARY DATA SHEET To avoid ESD damage, both latent and visible, it is very important that the product assembly and test areas follow the Class-1 ESD • Personnel Grounding - Wrist Straps - Conductive Smocks, Gloves and Finger Cots - Antistatic ID Badges • Protective Workstation - Dissipative Table Top - Protective Test Equipment (Properly Grounded) - Grounded Tip Soldering Irons - Solder Conductive Suckers - Static Sensors SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz) handling precautions listed below. • Facility - Relative Humidity Control and Air Ionizers - Dissipative Floors (less than 109 Ω to GND) • Protective Packaging and Transportation - Bags and Pouches (Faraday Shield) - Protective Tote Boxes (Conductive Static Shielding) - Protective Trays - Grounded Carts - Protective Work Order Holders Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 January 7, 2008 • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • 200643A Ordering Information Model Number Manufacturing Part Number SKY77181 SKY77181 Product Revision Package Operating Temperature MCM3x3LM –20 °C to 85 °C Revision History Revision Level A Date January 7, 2008 Description Initial Issue – Preliminary Information References Application Note: PCB Design and SMTP Assembly/Rework, Document Number 101752 Application Note: Tape and Reel Information – RF Modules, Document Number 101568 Standard SMTP Reflow Profiles: JEDEC Standard J–STD–020 © 2007, Skyworks Solutions, Inc. 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