PRELIMINARY DATA SHEET SKY73035: 2300 – 2700 MHz High Gain and Linearity Single Downconversion Mixer for 2G/3G Base Station Applications Applications Description • 2G/3G base station transceivers: − GSM/EDGE, CDMA, UMTS/WCDMA The SKY73035 is a fully integrated single 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. • Small, MCM (20-pin, 5 x 5 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020) VCC_IFRF • Operating frequency range: 2300 to 2700 MHz • IF frequency range: 50 to 500 MHz • Conversion gain: 7.6 dB • Input IP3: +25 dBm • Output IP3: +32.6 dBm • Noise figure: 9.8 dB • Integrated LO drivers • Integrated low loss RF baluns • High linearity IF amplifiers • On-chip SPDT LO switch (greater than 40 dB LO-to-LO isolation) The SKY73035 is manufactured using a robust silicon BiCMOS process and has been designed for optimum long-term reliability. The SKY73035 single downconversion mixer is provided in a compact, 20-pin 5 x 5 mm 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. IFA+ IFA– Features The SKY73035 features an input IP3 of +25 dBm and a Noise Figure (NF) of 9.8 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 40 dB of isolation between LO inputs and supports the switching time required for GSM/EDGE base stations. RXIF • Wi-Fi (802.11) • WiMAX (802.16) • 3GPP Long-Term Evolution • Wireless Local Loop • High performance radio links • Land mobile radio • Private mobile radio LO1 RF Skyworks offers lead (Pb)-free RoHS (Restriction of Hazardous Substances) compliant packaging. LO2 LO_SEL VCC_LO S937 Figure 1. SKY73035 Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200712C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 8, 2008 1 RXIF IF+ IF– GND N/C PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER 20 19 18 17 16 2 14 N/C N/C 3 13 GND GND 4 12 GND GND 5 11 LO1 6 7 8 9 10 GND RF LO_SEL LO2 VCC_LOSW 15 N/C 1 VCC_LO VCC_IFRF S938 Figure 2. SKY73035 Pinout – 20-Pin MCM (Top View) Table 1. SKY73035 Signal Descriptions Pin # Name Description Pin # Name Description 1 VCC_IFRF IF and RF DC supply, +5V 11 LO1 LO1 input 2 RF RF input 12 GND Ground 3 N/C No connection 13 GND Ground 4 GND Ground 14 N/C No connection 5 GND Ground 15 LO2 LO2 input 6 VCC_LO LO DC supply, +5V 16 N/C No connection 7 N/C No connection 17 GND Ground 8 VCC_LOSW LO switch DC supply, +5V 18 IF– Negative IF output 9 LO_SEL LO select switch control 19 IF+ Positive IF output 10 GND Ground 20 RXIF IF bias adjust Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 May 8, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200712C PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER Functional Description The SKY73035 is a high gain single mixer, optimized for base station receiver applications. The device consists of a low loss RF balun, high linearity passive mixer, and a low noise IF amplifier. An LO amplifier is also included that allow the SKY73035 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 (LO1 and LO2) for frequency hopping applications such as GSM. A high isolation SPDT switch allows the SKY73035 to be used for frequency hopping applications. This switch provides greater than 40 dB of LO1 to LO2 isolation: LO_SEL Input LO Path Selected High LO1 (pin 11) enabled Low LO2 (pin 15) enabled For applications that do not require frequency hopping, LO_SEL is fixed to one state and the appropriate LO input is used. An internal pull-down resistor enables the LO2 input. RF Baluns and Passive Mixer The RF baluns provide a single ended input, which can easily be matched to 50 Ω using a simple external matching circuit. The RF baluns offer very low loss, and excellent amplitude and phase balance. The high linearity SKY73035 is a passive, double balanced mixer that provides a very low conversion loss, and excellent 3rd Order Input Insertion Point (IIP3). Addtionally, the balanced nature of the mixer provides for high port-to-port isolation. IF Amplifier The SKY73035 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 Ω 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. LO Buffers and SPDT LO Switch The LO buffers allow the input power of the SKY73035 to be in the range of ±3.0 dBm. The LO section is optimized for low-side LO injection. However, each of the two LOs can be driven over a wide frequency range with only slight degradation in performance. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY73035 are provided in Table 2 and the recommended operating conditions in Table 3. Electrical characteristics for the SKY73035 are provided in Table 4. Table 2. SKY73035 Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units 4.5 5.5 V ICC 240 mA RF input power PRF 20.0 dBm LO input power PLO 20.0 dBm Supply voltage, +5 V VCC Supply current Operating case temperature TC Junction temperature TJ Storage case temperature TSTG –40 –40 +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 case) is 5.1 °C/W. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200712C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 8, 2008 3 PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER Table 3. SKY73035 Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units 4.75 5.00 5.25 V +3.0 dBm 0.8 V V Supply voltage, +5 V VCC Supply current ICC LO input power PLO –3.0 LO select input: high low LO_SELH LO_SELL 2.2 Operating case temperature TC –40 +85 °C RF frequency range FRF 2300 2700 MHz LO frequency range (Note 1) FLO 1800 2600 MHz IF frequency range FIF 50 500 MHz 200 mA 0 Note 1: The SKY73035 has been optimized for low-side LO injection. However, the LO can be used outside of the specified frequency range with degraded performance. Table 4. SKY73035 Electrical Specifications (Voltage Supply = +5 V, TC = +25 °C, LO = 0 dBm, RF Frequency = 2570 MHz, IF Frequency = 200 MHz, LO Frequency = 2370 MHz, Unless Otherwise Noted) Parameter Conversion gain Symbol Test Condition Min G Typical Max 7.6 dB Noise Figure NF Noise Figure with a blocker signal NFBLK Blocking signal input power = +8 dBm 9.8 Third order input intercept point IIP3 Tone space = 800 kHz, input tone power = –10 dBm +25 dBm Third order output intercept point OIP3 Tone space = 800 kHz, input tone power = –10 dBm +32.6 dBm 2RF – 2LO 2x2 PRF = –10 dBm –47 dBc 3RF – 3LO 3x3 PRF = –10 dBm –58 dBc Input 1 dB compression point IP1dB +13.5 dBm Output 1 dB compression point dB OP1dB 25 dB +21.5 dBm LO1-to-LO2 isolation 40 dB RF to IF isolation 65 dB LO leakage: @ RF port @ IF port –29 –67 dBm dBm LO_SEL input –20 LO switching time +150 +250 µA 0.5 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 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 Units May 8, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200712C PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER Evaluation Board Description pad to dissipate the maximum heat produced by the circuit board. For more information on soldering the SKY73035, refer to the Package and Handling Information section of this Data Sheet. The SKY73035 Evaluation Board is used to test the performance of the SKY73035 downconversion mixer. An assembly drawing for the Evaluation Board is shown in Figure 3 and the layer detail is provided in Figure 4. 3. Skyworks recommends including external bypass capacitors on the VCC voltage inputs of the device. 4. Components L5 and L4 (see Figure 5) are high-Q, low loss inductors. These inductors must be able to pass currents in excess of 200 mA DC. Circuit Design Configurations The following design considerations are general in nature and must be followed regardless of final use or configuration: 5. Components R7 and R8 (see Figure 5) allow for external adjustment of the IF amplifier bias points. For operation as specified in Tables 3 and 4, these resistors are not required. 1. Paths to ground should be made as short and as low impedance as possible. 2. The ground pad of the SKY73035 provides critical electrical and thermal functionality. 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 A schematic diagram for the SKY73035 Evaluation Board is shown in Figure 5. J9 J5 C16 C15 R5 C13 R6 L2 T2 C17 L4 R1 C3 C2 R4 C18 J8 L5 R7 R8 C19 J4 C14 L3 C12 C11 C20 R3 C1 U1 L1 C10 C7 C5 C8 R2 C9 C4 J3 J1 C6 J2 S1072 Figure 3. SKY73035 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200712C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 8, 2008 5 PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER Layer 1: Top – Metal Layer 2: Ground Layer 3: Power Plane Layer 4: Solid Ground Plane S1073 Figure 4. SKY73035 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 May 8, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200712C PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER J9 R6 0Ω 3 L4 470 nH 4 1 6 J5 C13 11 pF L5 470 nH VCC R4 0Ω L2 6.8 nH 2 T2 R7 DNI VCC × 17 IF+ 16 N/C 18 RXIF C20 1 μF 19 IF– 20 GND R8 DNI 1 VCC 15 VCC_IFRF LO2 RF N/C 2 J4 R1 0Ω C2 2.7 nH L1 1.5 pF C1 1 nH × 14 3 SKY73035 N/C × 13 12 7 11 VCC_LOSW 8 J3 LO1 9 GND LO_SEL N/C VCC_LO 6 R2 0Ω C10 33 pF GND GND GND J8 GND 4 5 R3 0Ω C7 33 pF 10 × VCC C4 1 μF J2 Element Jumper C5 33 pF VCC VCC C6 12 pF Notes: Values for all components are subject to change for matching purposes. 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. S1070 Figure 5. SKY73035 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200712C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 8, 2008 7 PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER Package Dimensions PCB Design & SMT Assembly/Rework Guidelines for MCM-L Packages, document number 101752. Figure 6 shows the package dimensions for the 20-pin MCM, and Figure 7 provides the tape and reel dimensions. 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. Electrostatic Discharge (ESD) Sensitivity The SKY73035 is a static-sensitive electronic device. Do not operate or store near strong electrostatic fields. Take proper ESD precautions. THE SKY73035 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, Pin 1 Indicator 5 4X 1.3 4X 0.65 0 5X 4.8 B C Pin 20 Pin 1 indicator (See Detail B) Pin 1 4X 1.3 4X 0.65 0 5X 4.8 5 A 20X SMT Pad 0.15 A B C Solder Mask Opening A 0.2 A B C 1.1 ± 0.1 0.15 A B C 0.1 Side View Top View Bottom View Solder Mask Edges 0.2 x 0.2 Metal Pad Edge 3 0.45 ± 0.05 0.3 ± 0.03 0.45 ± 0.1 (0.1) 3X R0.2 3 Detail B Detail A All measurements are in millimeters. Dimensioning and tolerancing according to ASME Y14.5M-1994. Figure 6. SKY73035 20-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 May 8, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200712C S944 PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER 8.00 (P1) ∅1.55 ± 0.05 4.00 (P0) 2.00 ± 0.05 0.30 ± 0.05 B 1.75 ± 0.10 5.35 A 12.00 ± 0.30 A 5.50 ± 0.05 Pin #1 Indicator 5o Max. B ∅1.50 Min. 1.70 5.35 B 5o Max. Notes: 1. Carrier tape: black conductive polystyrene 2. Cover tape material: transparent conductive PSA 3. Cover tape size: 9.3 mm width 4. ESD surface resistivity is </=1 x 1010 Ohms/Square according to EIA, JEDIC TNR specification. 5. P0/P1 10 pitches cumulative tolerance on tape: ±0.20 mm 6. A and B measurement points are 0.30 mm from bottom pocket. 7. All dimensions are in millimeters A S461 Figure 7. SKY73035 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200712C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 8, 2008 9 PRELIMINARY DATA SHEET • SKY73035 DOWNCONVERSION MIXER Ordering Information Model Name SKY73035 2300-2700 MHz Downconversion Mixer Manufacturing Part Number SKY73035-11 (Pb-free package) Evaluation Kit Part Number *** TBD *** Copyright © 2007, 2008 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 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 10 May 8, 2008 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200712C