PRELIMINARY DATA SHEET SKY73075-21: 2300 – 2400 MHz High Gain and Linearity Diversity Downconversion Mixer Applications IFA+ IFA– 2G/3G base station transceivers: GSM/EDGE, CDMA, UMTS/WCDMA Land mobile radio ISM band transceivers High performance radio links RF identification RFA LO1 LO_SEL (Switch Enable) LO2 Features Operating frequency range: 2300 to 2400 MHz IF frequency range: 50 to 500 MHz Conversion gain: 8.9 dB Input IP3: +25.3 dBm Output IP3: +34.2 dBm Noise figure: 8.8 dB Power-down mode Integrated LO drivers Integrated low loss RF baluns High linearity IF amplifiers On-chip SPDT LO switch (greater than 55 dB LO-to-LO isolation) Small, MCM (36-pin, 6 x 6 mm) package (MSL3, 260 C per JEDEC J-STD-020) RFB PWRDN IFB+ IFB– S643a Figure 1. SKY73075-21 Block Diagram Description The SKY73075-21 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. The SKY73075-21 features an input IP3 of +25.3 dBm and a Noise Figure (NF) of 8.8 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 55 dB of isolation between LO inputs and supports the switching time required for GSM/EDGE base stations. The SKY73075-21 is manufactured using a robust silicon BiCMOS process and has been designed for optimum long-term reliability. The SKY73075-21 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. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201240A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 24, 2010 1 VCC7 N/C GND IFA– IFA+ N/C VCC6 RIFA N/C PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER 36 35 34 33 32 31 30 29 28 3 25 GND VCC1 4 24 GND GND 5 23 LO_SEL VCC2 6 22 PWRDN GND 7 21 VCC5 N/C 8 20 GND RFB 9 19 LO1 10 11 12 13 14 15 16 17 18 N/C GND RIFB GND VCC4 26 N/C 2 IFB– N/C IFB+ LO2 GND 27 N/C 1 VCC3 RFA S1916 Figure 2. SKY73075-21 Pinout – 36-Pin MCM (Top View) Table 1. SKY73075-21 Signal Descriptions Pin # Name Description Pin # Name Description 1 RFA RF channel A input 19 LO1 Local oscillator #1 input 2 N/C No connect 20 GND Ground 3 GND Ground 21 VCC5 DC supply, +5 V 4 VCC1 DC supply, +5 V 22 PWRDN Power-down mode enable 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 N/C No connect 26 GND Ground 9 RFB RF channel B input 27 LO2 Local oscillator #2 input 10 VCC3 DC supply, +5 V 28 N/C No connect 11 N/C 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 N/C No connect 14 IFB– IF channel B negative output 32 IFA+ IF channel A positive output 15 N/C 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 N/C No connect 18 N/C 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 June 24, 2010 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201240A PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER Functional Description The SKY73075-21 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 SKY73075-21 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). RF Baluns and Passive Mixer The RF baluns provide a single ended input, which can easily be matched to 50 using a simple matching circuit. The RF baluns offer very low loss and excellent amplitude and phase balance. 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. Addtionally, the balanced nature of the mixer provides for excellent port-to-port isolation. LO Buffers and SPDT LO Switch The LO buffers allow the input power of the SKY73075-21 to be programmed in the range of –6 to +6 dBm. The LO section has been optimized for low-side LO injection. However, the LO can be driven over a wide frequency range with only slight degradation in performance. 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 SKY73075-21 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. A simple matching network allows the output ports to be matched to a balanced 200 impedance. The IF amplifiers are optimized for IF frequencies between 50 and 500 MHz. The IF amplifiers can be operated outside of this range, but with a slight degradation in performance. Power-Down Mode The SKY73075-21 also includes a low current power-down mode controlled by pin 22 (PWRDN). When this pin is at a logic high level, the power-down function is enabled with the total mixer current under 1μA. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY73075-21 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. A high isolation SPDT switch allows the SKY73075-21 to be used for frequency hopping applications. This switch provides greater than 55 dB of LO1 to LO2 isolation: LO_SEL Logic: State: High LO1 enabled Low LO2 enabled Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201240A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 24, 2010 3 PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER Table 2. SKY73075-21 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 Typical Maximum Units 4.5 5.0 5.5 V 370 0 –40 –40 420 mA +20 dBm +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. 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. SKY73075-21 Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units RF frequency range FRF 2300 2400 MHz LO frequency range (Note 1) FLO 1800 2470 MHz IF frequency range FIF 50 500 MHz Supply voltage, +5 V (VCC1 – VCC7) VCC Supply current ICC LO input power PLO Logic levels (LO_SEL, PWRDN): high low Operating case temperature 4.75 5.00 5.25 370 –6 0 +6 dBm 0.8 V V +85 C 2.2 TC –40 Note 1: The SKY73075-21 has been optimized for low side LO injection. However, the LO can be used outside of the specified frequency range with degraded performance. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 V mA June 24, 2010 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201240A PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER Table 4. SKY73075-21 Electrical Specifications (Note 1) (Voltage Supply = +5 V, TC = +25 C, LO = 0 dBm, RF Frequency = 2350 MHz, IF Frequency = 350 MHz, LO Frequency = 2000 MHz, PWRDN = 0, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Conversion gain G 8.9 dB Noise Figure NF 8.8 dB Noise Figure with a blocker signal NFBLK Blocking signal input power = +8 dBm *** TBD *** dB Third order input intercept point IIP3 Tone space = 800 kHz, input tone power = –10 dBm +25.3 dBm Third order output intercept point OIP3 Tone space = 800 kHz, input tone power = –10 dBm +34.5 dBm 2RF – 2LO 2x2 PRF = –10 dBm –70 dBc 3RF – 3LO 3x3 PRF = –10 dBm Input 1 dB compression point IP1dB Output 1 dB compression point OP1dB +23.5 –63 –70 –80 dBc +9.5 +13.3 dBm +22.2 dBm LO1 to LO2 isolation 30 43 dB Channel-to-channel isolation 40 45 dB RF to IF isolation 30 50 dB LO leakage @ IF port –23 –54 dBm LO leakage: 1xLO @ RF 2xLO @ RF 3xLO @ RF 4xLO @ RF –25 –23 –28 –28 –35 –27 –53 –52 dBm dBm dBm dBm –85 –85 –85 –85 –85 –85 –85 –100 –112 –122 –126 –125 *** TBD *** *** TBD *** dBc dBc dBc dBc dBc dBc dBc Spurious measurements: 4RF-5LO 5RF-6LO 6RF-7LO 7RF-8LO 8RF-9LO 8RF-10LO 9RF-10LO PIN = 0 dBm 4x5 5x6 6x7 7x8 8x9 8x10 9x10 LO switching time (Note 2) Power-down current (Note 2) (Note 3) IOFF PWRDN = 1 0.1 Power-down/up time (Note 2) Logic input current (Note 2) –20 +150 1 μs 1.0 μA 1 μs +250 μA Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2: Characterized and guaranteed by design; not tested in production. Note 3: Power-down functionality tested in production. Power-down current (IOFF) production-tested to be < 1 mA. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201240A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 24, 2010 5 PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER Evaluation Board Description Package Dimensions The SKY73075-21 Evaluation Board is used to test the performance of the SKY73075-21 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 SKY73075-21 Evaluation Board is shown in Figure 5. The PCB layout footprint for the SKY73075-21 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 SKY73075-21 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. 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 SKY73075-21 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 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. 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 SKY73075-21. These resistors are not required for the Evaluation Board to operate as specified in Tables 3 and 4. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 June 24, 2010 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201240A PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER J5 J7 C29 C34 C35 L16 L17 R4 C28 L13 L12 T2 J3 J1 C33 C32 L14 C38 C26 R5 C27 C1 C23 C4 C21 C20 C5 L4 C24 C18 C17 C8 C6 C25 L11 L2 L3 C39 R2 C3 C2 L1 L15 C7 C41 L5 L6 C12 R1 C14 R6 C13 C11 C22 R10 R7 R9 R8 L10 C19 C40 T1 J2 J4 R3 L18 J8 L8 L19 C36 C37 P1 C42 C15 L9 C16 J6 S1037 Figure 3. SKY73075-21 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201240A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 24, 2010 7 PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER Layer 1: Top – Metal Layer 2: Ground Layer 3: Power Plane Layer 4: Solid Ground Plane S1038 Figure 4. SKY77024 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 June 24, 2010 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201240A PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER R4 0Ω DB714 L14 470 nH L13 0Ω T2 C29 15 pF L15 470 nH VCC L12 0Ω J5 C28 DNI C27 33 pF C28 1 μF VCC R2 DNI 5 6 7 J7 L3 0Ω L4 6.8 nH C8 0Ω C7 0.4 pF x 8 9 N/C N/C IFA+ IFA– N/C GND 28 LO2 N/C GND GND GND GND VCC1 SKY73075 GND LO_SEL VCC2 PWRDN VCC5 GND N/C GND RFB LO1 10 11 12 13 14 15 × 16 × 17 L11 0Ω 27 26 J8 C23 33 pF 25 Element Jumper VCC 24 C22 12 pF 23 22 Power-Down Enable 21 C20 1 μF 20 19 N/C VCC 29 RIFB 4 × 30 VCC4 3 31 N/C 2 32 IFB– x RFA 33 IFB+ C3 0.4 pF 1 × 34 GND C1 0Ω N/C L2 6.8 nH VCC7 L1 0Ω VCC3 J4 35 RIFA × 36 VCC6 VCC VCC L10 0Ω J3 C17 33 pF 18 R1 DNI × VCC L5 470 nH VCC C14 33 pF C13 1 μF L9 0Ω VCC L6 470 nH Note: The SKY73075 Evaluation Board can be converted to provide a differential output by removing components T1, T2, R3, and R4. C15 15 pF T1 DB714 L8 0Ω J6 C16 DNI 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. S1917 Figure 5. SKY73075-21 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201240A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 24, 2010 9 PRELIMINARY DATA SHEET • SKY73075-21 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 Solder Mask 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 Pin 36 6.45 2X 2.775 3.88 Pin 1 2X 2.775 6.45 6.3 3.88 0.5 Pitch Typ 0.25 Typ Component Outline Metallization Top View Note: The cross-hatched area represents the merger of the center ground pad +9 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. Component Outline Solder Mask Opening Thermal Via Array. ∅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. All measurements are in millimeters S1125 Figure 6. PCB Layout Footprint for the SKY73075-21 6 x 6 mm MCM Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 June 24, 2010 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201240A PRELIMINARY DATA SHEET • SKY73075-21 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 1.05 ± 0.1 A 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 S689_C Figure 7. SKY73075-21 36-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201240A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 24, 2010 11 PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER ∅1.50 ± 0.10 0.25 ± 0.02 (T) 4.00 ± 0.10 2.00 ± 0.10 1.75 ± 0.10 6.35 ± 0.10 (Bo) A A B 1.30 ± 0.10 (Ko) 12.00 ± 0.20 B 5.50 ± 0.10 Pin #1 Indicator (see Notes) ∅1.55 ± 0.05 8.00 ± 0.10 B 6.35 ± 0.10 (Ao) Notes: 1. Carrier tape: black conductive polycarbonate 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. Figure 8. SKY73075-21 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 June 24, 2010 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201240A S1850 PRELIMINARY DATA SHEET • SKY73075-21 DOWNCONVERSION MIXER Ordering Information Model Name SKY73075-21 2300-2400 MHz Downconversion Mixer Manufacturing Part Number SKY73075-21 Evaluation Board Part Number TW18-D550 Copyright © 2010 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 201240A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 24, 2010 13