PRELIMINARY DATA SHEET SKY73086: 650 – 900 MHz High Gain and Linearity Diversity Downconversion Mixer Applications Description • 2G/3G base station transceivers: − GSM/EDGE, CDMA, UMTS/WCDMA The SKY73086 is a fully integrated diversity mixer that includes Local Oscillator (LO) drivers, an LO switch, high linearity mixers, and large dynamic range Intermediate Frequency (IF) amplifiers. Low loss RF baluns have also been included to reduce design complications and lower system cost. • Land mobile radio • High performance radio links Features • Operating frequency range: 650 to 900 MHz • IF frequency range: 100 to 500 MHz • Conversion gain: 8.7 dB • Input IP3: +24.4 dBm • Output IP3: +33.1 dBm • Noise figure: 11 dB • Integrated LO drivers • Integrated low loss RF baluns • High linearity IF amplifiers • On-chip SPDT LO switch (greater than 60 dB LO-to-LO isolation) The SKY73086 features an input IP3 of +24.4 dBm and a Noise Figure (NF) of 11 dB, making the device an ideal solution for high dynamic range systems such as 2G/3G base station receivers. The LO switch provides more than 60 dB of isolation between LO inputs and supports the switching time required for GSM/EDGE base stations. The SKY73086 is manufactured using a robust silicon BiCMOS process and has been designed for optimum long-term reliability. The SKY73086 diversity downconversion mixer is provided in a compact, 36-pin Multi-Chip Module (MCM). A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. • Small, MCM (36-pin, 6 x 6 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020) IFA+ IFA– RFA LO1 LO_SEL (Switch Enable) LO2 RFB IFB+ IFB– S643 Figure 1. SKY73086 Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201044C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 19, 2009 1 VCC_RFA NC GND IFA– IFA+ NC VCC_IFA RIFA NC PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER 36 35 34 33 32 31 30 29 28 3 25 GND VCC_LO 4 24 GND GND 5 23 LO_SEL VCC_LO 6 22 GND GND 7 21 VCC_LO NC 8 20 GND RFB 9 19 LO1 10 11 12 13 14 15 16 17 18 NC GND RIFB GND VCC_IFB 26 NC 2 IFB– NC IFB+ LO2 GND 27 NC 1 VCC_RFB RFA S646 Figure 2. SKY73086 Pinout – 36-Pin MCM (Top View) Table 1. SKY73086 Signal Descriptions Pin # Name Description Pin # Name Description 1 RFA RF channel A input 19 LO1 Local oscillator #1 input 2 NC No connect 20 GND Ground 3 GND Ground 21 VCC5 DC supply, +5 V 4 VCC1 DC supply, +5 V 22 GND Ground 5 GND Ground 23 LO_SEL Local oscillator switch select 6 VCC2 DC supply, +5 V 24 GND Ground 7 GND Ground 25 GND Ground 8 NC No connect 26 GND Ground 9 RFB RF channel B input 27 LO2 Local oscillator #2 input 10 VCC3 DC supply, +5 V 28 NC No connect 11 NC No connect 29 RIFA IF channel A bias control 12 GND Ground 30 VCC6 DC supply, +5 V 13 IFB+ IF channel B positive output 31 NC No connect 14 IFB– IF channel B negative output 32 IFA+ IF channel A positive output 15 NC No connect 33 IFA– IF channel A negative output 16 VCC4 DC supply, +5 V 34 GND Ground 17 RIFB IF channel B bias control 35 NC No connect 18 NC No connect 36 VCC7 DC supply, +5 V Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 May 19, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201044C PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER Functional Description A high isolation SPDT switch allows the SKY73086 to be used for frequency hopping applications. This switch provides greater than 60 dB of LO1 to LO2 isolation: The SKY73086 is a high gain diversity mixer, optimized for base station receiver applications. The device consists of two diversity channels, each consisting of a low loss RF balun, high linearity passive mixer, and a low noise IF amplifier. LO amplifiers are also included that allow the SKY73086 to connect directly to the output of a Voltage Controlled Oscillator (VCO). This eliminates the extra gain stages needed by most discrete passive mixers. A Single Pole, Double Throw (SPDT) switch has been included to select between two different LO inputs for frequency hopping applications (i.e., GSM). LO_SEL Logic: State: High LO1 enabled Low LO2 enabled For applications that do not require frequency hopping, LO_SEL is fixed to one state and the appropriate LO input is used. IF Amplifier The SKY73086 includes high dynamic range IF amplifiers that follow the passive mixers in the signal path. The outputs require a supply voltage connection using inductive chokes. These choke inductors should be high-Q and have the ability to handle 200 mA or greater. RF Baluns and Passive Mixer The RF baluns provide a single ended input, which can easily be matched to 50 Ω using a simple matching circuit. The RF baluns offer very low loss and excellent amplitude and phase balance. A simple matching network allows the output ports to be matched to a balanced 200 Ω impedance. The IF amplifiers are optimized for IF frequencies between 100 and 500 MHz. The IF amplifiers can be operated outside of this range, but with a slight degradation in performance. The high linearity mixer is a passive, double balanced mixer that provides a very low insertion loss, and excellent 3rd Order Input Insertion Point (IIP3) and linearity performance. Additionally, the balanced nature of the mixer provides for excellent port-to-port isolation. LO Buffers and SPDT LO Switch Electrical and Mechanical Specifications The LO buffers allow the input power of the SKY73086 to be programmed in the range of –6 to +6 dBm. The LO section has been optimized for high-side LO injection. However, the LO can be driven over a wide frequency range with only slight degradation in performance. The absolute maximum ratings of the SKY73086 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Table 2. SKY73086 Absolute Maximum Ratings Parameter Symbol Supply voltage, +5 V (VCC1 – VCC7) VCC Supply current ICC RF input power PRF LO input power PLO Operating case temperature TC Junction temperature TJ Storage case temperature TSTG Minimum 4.5 –40 –40 Typical Maximum Units 5.0 5.5 V 370 430 mA +20 dBm 0 +20 dBm +85 °C +150 °C +125 °C Notes: 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. Nominal thermal resistance (junction to center ground pad) is 5.1 °C/W. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201044C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 19, 2009 3 PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER Table 3. SKY73086 Recommended Operating Conditions Parameter RF frequency range Symbol Minimum FRF Typical Maximum Units 650 900 MHz LO frequency range (Note 1) FLO 750 1400 MHz IF frequency range FIF 100 500 MHz Supply voltage, +5 V (VCC1 – VCC7) VCC 4.75 Supply current ICC LO input power PLO –6 LO select logic: high low LO_SELH LO_SELL 2.2 Operating case temperature TC –40 5.00 5.25 V 370 mA 0 +6 dBm 0.8 V V +85 °C Note 1: The SKY73086 has been optimized for high-side LO injection. However, the LO can be used outside of the specified frequency range with degraded performance. Table 4. SKY73086 Electrical Specifications (1 of 2) (Voltage Supply = +5 V, TC = +25 °C, LO = 0 dBm, RF Frequency = 750 MHz, IF Frequency = 450 MHz, LO Frequency = 1200 MHz, Unless Otherwise Noted) Parameter Conversion gain Symbol G Test Condition FRF = 750 MHz, VCC = 4.75 to 5.25 V, PLO = –3 to +3 dBm Min Typical 7.5 8.7 Max dB Noise Figure NF FRF = 750 MHz Noise Figure with a blocker signal NFBLK Blocking signal input power = +8 dBm 11 dB Third order input intercept point IIP3 FRF = 750 and 750.8 MHz, PRF = –10 dBm/each tone, VCC = 4.75 to 5.25 V, PLO = –3 to +3 dBm +24.4 dBm Third order output intercept point OIP3 FRF = 750 and 750.8 MHz, PRF = –10 dBm/each tone, VCC = 4.75 to 5.25 V, PLO = –3 to +3 dBm +33.1 dBm 2RF – 2LO 2x2 PRF = –10 dBm –80 dBc 3RF – 3LO 3x3 PRF = –10 dBm –90 dBc 4RF – 3LO, spurious 4x3 PRF = 0 dBm –92 dBc 2RF – 1LO, spurious 2x1 PRF = 0 dBm –56 dBc 4RF – 2LO, spurious 4x2 PRF = 0 dBm –95 dBc Input 1 dB compression point IP1dB 25 +9.5 dB dBm LO1 to LO2 isolation FRF = 900 MHz, FLO = 1250 MHz 55 dB Channel-to-channel isolation FRF = 900 MHz, FLO = 1250 MHz 35 dB RF to IF isolation FRF = 900 MHz 33 dB Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 Units May 19, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201044C PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER Table 4. SKY73086 Electrical Specifications (2 of 2) (Voltage Supply = +5 V, TC = +25 °C, LO = 0 dBm, RF Frequency = 750 MHz, IF Frequency = 450 MHz, LO Frequency = 1200 MHz, Unless Otherwise Noted) Parameter Symbol Test Condition Min FRF = 350 MHz, FLO = 440 MHz LO leakage: 1xLO to RF port 2xLO to RF port 3xLO to RF port 4xLO to RF port 1xLO to IF port Typical Max dBm dBm dBm dBm dBm –32 –33 –74 –67 –26 LO_SEL input –20 +150 LO switching time Units +250 µA 1.0 µs RF port input return loss ZIN_RF With external matching components 14 dB LO port input return loss ZIN_LO With external matching components 14 dB IF port input return loss ZOUT_IF With external matching components 14 dB Evaluation Board Description Package Dimensions The SKY73086 Evaluation Board is used to test the performance of the SKY73086 downconversion mixer. An assembly drawing for the Evaluation Board is shown in Figure 3 and the layer detail is provided in Figure 4. A schematic diagram of the SKY73086 Evaluation Board is shown in Figure 5. The PCB layout footprint for the SKY73086 is provided in Figure 6. Figure 7 shows the package dimensions for the 36-pin MCM and Figure 8 provides the tape and reel dimensions. Package and Handling Information 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 ground pad of the SKY73086 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. 3. Skyworks recommends including external bypass capacitors on the VCC voltage inputs of the device. 4. Components L5, L6, L14, and L15 (see Figure 5) are high-Q low loss inductors. These inductors must be able to pass currents in excess of 200 mA DC. 5. Components R1 and R2 (see Figure 5) set the bias current for the IF amplifiers. Skyworks recommends that these resistors have a tolerance of ±1% to optimize performance consistency of the SKY73086. These resistors are not required for the Evaluation Board to operate as specified in Tables 3 and 4. 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 SKY73086 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 the Skyworks Application Note, PCB Design & 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. Electrostatic Discharge (ESD) Sensitivity The SKY73086 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 • [email protected] • www.skyworksinc.com 201044C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 19, 2009 5 PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER J9 J5 C34 C35 L17 L16 J4 C2 L12 L13 R4 C25 T2 C32 L1 C28 C29 J8 C33 C39 C26 L2 L14 L15 C38 C3 L11 R2 C27 C1 R5 C23 C22 C20 C4 J1 C24 C21 J2 C5 C17 C8 C7 C41 C6 L5 C14 L6 R6 R1 C40 L4 C13 C12 L3 J7 T1 C18 L10 C11 C19 R3 L18 C36 J10 L8 L19 C37 C15 J3 L9 C16 J6 S905 Figure 3. SKY73086 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 May 19, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201044C PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER Layer 1: Top -- Metal Layer 2: Ground Layer 3: Power Plane Layer 4: Solid Ground Plane S904 Figure 4. SKY73086 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201044C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 19, 2009 7 PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER R4 0Ω DB714 L14 470 nH L13 100 pF T2 J5 C29 10 pF L15 470 nH VCC L12 0Ω C27 33 pF C26 1 μF VCC R2 DNI 7 J7 L3 0Ω L4 18 nH C8 0Ω C7 2.7 pF x 8 9 NC RIFA NC VCC6 IFA+ IFA– GND NC GND GND VCC1 GND SKY73086 GND LO_SEL VCC2 GND GND VCC5 NC GND RFB LO1 11 12 13 14 15 x 10 16 RIFB 6 LO2 17 L11 0Ω 27 26 J8 C23 33 pF 25 Element Jumper VCC VCC 24 C22 12 pF 23 C20 1 μF 22 21 C21 33 pF 20 J3 19 C17 33 pF NC 5 28 18 L10 0Ω R1 DNI x C35 33 pF 29 GND VCC4 VCC 30 NC NC 4 31 IFB– 3 32 x 2 33 IFB+ x RFA 34 GND C3 2.7 pF 1 35 NC C1 0Ω VCC7 L2 18 nH VCC3 L1 0Ω x 36 J4 x x VCC VCC L5 470 nH VCC C14 33 pF C13 1 μF L9 0Ω VCC L6 470 nH Note: The SKY73086 Evaluation Board can be converted to provide a differential output by removing components T1, T2, R3, and R4. C15 10 pF T1 DB714 L8 100 pF R3 0Ω Some component labels may be different than the corresponding component symbol shown here. Component values, however, are accurate as of the date of this Data Sheet. S1379 Figure 5. SKY73086 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 J6 May 19, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201044C PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER 6.3 0.4 Component Outline 0.25 0.075 0.15 0.075 0.75 0.9 12X 0.062 Stencil and Metallization 6.3 36X 0.875 Component Outline Soldermask Opening 24X 0.125 SMT Pad Detail Scale: 2X 9X This Rotation 9X Rotated 180o 9X Rotated 90o CW 9X Rotated 90o CCW Stencil aperture size for center ground pads should be 80% to 100% (by area) of the solder mask opening of the package. 12X 0.063 24X 0.125 36X 0.875 Stencil Aperture Top View 6.3 6.45 Pin 36 2X 2.775 Pin 1 2X 2.775 6.45 6.3 3.88 0.5 Pitch Typ Component Outline Component Outline 0.25 Typ Metallization Top View Thermal Via Array. Solder Mask Opening ∅0.3 mm on 0.6 mm pitch. Top View Additional vias in common ground pad will improve thermal and electrical performance. NOTE: thermal vias should be tented and filled with solder mask, 30-35 μm Cu plating recommended. Note: The cross-hatched area represents the merger of the center ground pad +10 individual I/O ground pads. All I/O ground pads should have at least one via connected to internal ground planes for optimum electrical performance. All measurements are in millimeters S1125 Figure 6. PCB Layout Footprint for the SKY73086 6 x 6 mm MCM Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201044C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 19, 2009 9 PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER 18X 2.9 Pin 1 Indicator C Pin 36 4X 2 B 6 Pin 1 Indicator (See Detail D) Pin 1 4X 1.5 4X 0.5 4X 1 A 4X 2 4X 1 4X 1.5 6 4X 0.5 2X 1.9 18X 2.9 36x SMT Pad 0.15 A B C A 1.1 ± 0.1 3X R0.2 2X 1.9 0.1 0.15 A B C Top View Side View Bottom View Solder Mask Opening 0.2 A B C 0.5 ± 0.1 0.2 x 0.2 (0.1) 0.25 ± 0.05 0.4 ± 0.05 Detail D Metal Pad Edge All measurements are in millimeters Detail A Pads are solder mask defined on one edge and metal defined on three edges. Dimensioning and tolerancing according to ASME Y14.5M-1994 Figure 7. SKY73086 36-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 May 19, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201044C S689_A PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER 2.00 ± 0.05 4.00 8.00 ∅1.50 ± 0.10 0.30 ± 0.02 B 6.35 A 12.00 ± 0.30 A 1.75 ± 0.10 5.50 ± 0.05 Pin #1 Indicator (see Notes) 7o Max. B ∅1.50 Min. 1.59 6.35 B o 8 Max. Notes: 1. Carrier tape: black conductive polystyrene 2. Cover tape material: transparent conductive PSA 3. Cover tape size: 9.3 mm width 4. All dimensions are in millimeters 5. Pin 1 orientation is in top left corner for the following Skyworks products: A SKY73022-21, -31 SKY73023-21, -31 For all other 6 x 6 mm MCM/RFLGA products, pin 1 orientation is in top right corner. S1183 Figure 8. SKY73086 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201044C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 19, 2009 11 PRELIMINARY DATA SHEET • SKY73086 DOWNCONVERSION MIXER Ordering Information Model Name SKY73086 650-900 MHz Downconversion Mixer Manufacturing Part Number SKY73086 (Pb-free package) Evaluation Kit Part Number TW17-D890 Copyright © 2009 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. 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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 12 May 19, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201044C