PRELIMINARY DATA SHEET SKY73023: 1700 – 2200 MHz High Gain and Linearity Diversity Downconversion Mixer for 2G/3G Base Station Applications Applications Description • 2G/3G base station transceivers: − GSM/EDGE, CDMA, UMTS/WCDMA, PHS The SKY73023 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 SKY73023 is manufactured using a robust silicon BiCMOS process and has been designed for optimum long-term reliability. The SKY73023 diversity downconversion mixer is provided in a compact, 36-pin 6 x 6 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. • Small, MCM (36-pin, 6 x 6 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020) Skyworks offers lead (Pb)-free RoHS (Restriction of Hazardous Substances) compliant packaging. VCC_LO • Operating frequency range: 1700 to 2200 MHz • IF frequency range: 40 to 300 MHz • Conversion gain: 8.5 dB • Input IP3: 25.5 dBm • Output IP3: 34.0 dBm • Noise figure: 9.5 dB • Integrated LO drivers • Integrated low loss RF baluns • High linearity IF amplifiers • On-chip SPDT LO switch (greater than 45 dB LO-to-LO isolation) VCC_IFA Features The SKY73023 features an input IP3 of 25.5 dBm and a Noise Figure (NF) of 9.5 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 45 dB of isolation between LO inputs and supports the switching time required for GSM/EDGE base stations. IFA+ IFA– • Private mobile radio RIFA • Land mobile radio • Wireless Local Loop • High performance radio links RFA LO1 LO2 RFB VCC_IFB IFB+ IFB– RIFB LO_SEL VCC_LO S643 Figure 1. SKY73023 Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200634C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 26, 2007 1 VCC_RFA NC GND IFA– IFA+ NC VCC_IFA RIFA NC PRELIMINARY DATA SHEET • SKY73023 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. SKY73023 Pinout – 36-Pin MCM Table 1. SKY73023 Signal Descriptions Pin # Name Description Pin # Name Description 1 RFA Channel A RF input 19 LO1 Local oscillator 1 input 2 NC No connect 20 GND Ground 3 GND Ground 21 VCC_LO DC supply, +5 V 4 VCC_LO DC supply, +5 V 22 GND Ground 5 GND Ground 23 LO_SEL Local oscillator select switch control 6 VCC_LO DC supply, +5 V 24 GND Ground 7 GND Ground 25 GND Ground 8 NC No connect 26 GND Ground 9 RFB Channel B RF input 27 LO2 Local oscillator 2 input 10 VCC_RFB Channel B RF DC supply, +5 V 28 NC No connect 11 NC No connect 29 RIFA Channel A IF bias adjust 12 GND Ground 30 VCC_IFA Channel A IF DC supply, +5 V 13 IFB+ Positive channel B IF output 31 NC No connect 14 IFB– Negative channel B IF output 32 IFA+ Positive channel A IF output 15 NC No connect 33 IFA– Negative channel A IF output 16 VCC_IFB Channel B IF DC supply, +5 V 34 GND Ground 17 RIFB Channel B IF bias adjust 35 NC No connect 18 NC No connect 36 VCC_RFA Channel A RF DC supply, +5 V Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 July 26, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200634C PRELIMINARY DATA SHEET • SKY73023 DOWNCONVERSION MIXER Functional Description The SKY73023 is a high gain diversity mixer, optimized for base station receiver applications. The device consists of two diversity channels (A and B), each consisting of a low loss RF balun, high linearity passive mixer, and a low noise IF amplifier. A high isolation SPDT switch allows the SKY73023 to be used for frequency hopping applications. This switch provides greater than 45 dB of LO1 to LO2 isolation: LO_SEL Input LO Path Selected High LO1 (pin 19) enabled Low LO2 (pin 27) enabled Two LO amplifiers (independent of channels A and B) are also included that allow the SKY73023 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). 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 IF Amplifier 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 SKY73023 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. The high linearity SKY73023 is a passive, double balanced mixer that provides a very low conversion loss and an excellent 3rd Order Input Intercept Point (IIP3). Addtionally, the balanced nature of the mixer provides for high port-to-port isolation. 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 40 and 300 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 SKY73023 to be in the range of ±3 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 SKY73023 are provided in Table 2 and the recommended operating conditions in Table 3. Electrical characteristics for the SKY73023 are provided in Table 4. Table 2. SKY73023 Absolute Maximum Ratings Parameter Symbol Minimum 4.5 Maximum Units Supply voltage, +5 V (VCC1 – VCC7) VCC 5.5 V Supply current ICC 440 mA RF input power PRF 20 dBm LO input power PLO 6 dBm Operating case temperature TC –40 +85 °C Junction temperature TJ 150 °C Storage case temperature TSTG –40 +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 200634C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 26, 2007 3 PRELIMINARY DATA SHEET • SKY73023 DOWNCONVERSION MIXER Table 3. SKY73023 Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units 4.75 5.00 5.25 V +3 dBm 0.8 V V Supply voltage, +5 V (VCC1 – VCC7) VCC Supply current ICC LO input power PLO –3 LO select input: high low LO_SELH LO_SELL 2.2 375 mA 0 Operating case temperature TC –40 +85 °C RF frequency range FRF 1700 2200 MHz LO frequency range (Note 1) FLO 1460 2000 MHz IF frequency range FIF 40 300 MHz Note 1: The SKY73023 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. SKY73023 Electrical Specifications (Voltage Supply = +5 V, TC = +25 °C, LO = 0 dBm, RF Frequency = 1880 MHz, IF Frequency = 200 MHz, LO Frequency = 1680 MHz, Unless Otherwise Noted) Parameter Conversion gain Symbol Test Condition Min G Typical Max 8.5 Noise Figure NF Noise Figure with a blocker signal NFBLK Blocking signal input power = +8 dBm Third order input intercept point IIP3 Third order output intercept point dB 9.5 dB 18 dB Tone space = 800 kHz, input tone power = –10 dBm 25.5 dBm OIP3 Tone space = 800 kHz, input tone power = –10 dBm 34.0 dBm 2RF – 2LO 2x2 PRF = –10 dBm –68 dBc 3RF – 3LO 3x3 PRF = –10 dBm –80 dBc Input 1 dB compression point IP1dB 14.0 dBm Output 1 dB compression point OP1dB 21.5 dBm LO1-to-LO2 isolation 45 dB Channel-to-channel isolation 45 dB RF-to IF-isolation 55 dB LO leakage: @ RF port @ IF port –40 –45 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 July 26, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200634C PRELIMINARY DATA SHEET • SKY73023 DOWNCONVERSION MIXER Evaluation Board Description 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 heat produced by the circuit board. For more information on soldering the SKY73023, refer to the Package and Handling Information section of this Data Sheet. The SKY73023 Evaluation Board is used to test the performance of the SKY73023 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 for the SKY73023 Evaluation Board is shown in Figure 5. 3. Skyworks recommends including external bypass capacitors on the VCC voltage inputs of the device. Circuit Design Configurations 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. 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 and as low impedance as possible. 5. Components R1 and R2 (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. 2. The ground pad of the SKY73023 provides critical electrical and thermal functionality. This pad is the main thermal conduit for heat dissipation. Since the circuit board acts as J9 J5 C34 C35 L17 L16 J4 L12 L13 R4 C25 T2 C32 L1 C2 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. SKY73023 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200634C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 26, 2007 5 PRELIMINARY DATA SHEET • SKY73023 DOWNCONVERSION MIXER Layer 1: Top -- Metal Layer 2: Ground Layer 3: Power Plane Layer 4: Solid Ground Plane S904 Figure 4. SKY73023 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 July 26, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200634C PRELIMINARY DATA SHEET • SKY73023 DOWNCONVERSION MIXER L17 DNI L14 470 nH C35 DNI R4 0Ω DB714 C32 DNI L13 12 nH C29 DNI C27 33 pF C33 DNI J9 L12 0Ω J5 C34 DNI T2 L15 470 nH VCC L16 DNI C28 15 pF C26 1 μF VCC R2 DNI R5 DNI C2 DNI x 29 28 LO2 NC GND GND GND NC 11 12 13 14 15 x 10 16 17 23 VCC J2 C21 33 pF VCC 22 21 20 L10 0Ω 19 C17 33 pF NC RIFB LO1 C22 12 pF 18 C18 DNI C20 1 μF J3 C19 DNI R1 DNI x RFB GND VCC_IFB 9 VCC_LO NC 8 GND IFB– C7 5.6 nH x GND x C6 DNI C8 0Ω LO_SEL VCC_LO IFB+ L4 1 pF L3 0Ω SKY73023 GND GND 7 C25 DNI Element Jumper GND NC 6 C24 DNI 24 VCC_RFB 5 C23 33 pF J8 25 VCC_LO C5 33 pF 27 26 2 3 C4 DNI L11 0Ω NC NC 30 RIFA 31 IFA+ 32 IFA– 33 4 VCC J7 RFA 34 VCC_IFA C3 5.6 nH 1 35 NC C1 0Ω GND L2 1 pF VCC_RFA L1 0Ω x 36 J4 x x VCC VCC L5 470 nH C14 33 pF C13 1 μF R6 DNI VCC J6 VCC C12 DNI C11 DNI L6 470 nH T1 C15 DNI DB714 Note: The Evaluation Board can be converted to provide a differential output by removing components T1, T2, R3, and R4. R3 0Ω L8 12 nH C16 15 pF L18 DNI L19 DNI C37 DNI L9 0Ω J10 C36 DNI S947 Figure 5. SKY73023 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200634C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 26, 2007 7 PRELIMINARY DATA SHEET • SKY73023 DOWNCONVERSION MIXER Package Dimensions Figure 6 shows the package dimensions for the 36-pin MCM, and Figure 7 provides the tape and reel dimensions. 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. THE SKY73023 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 SKY73023 is a static-sensitive electronic device. Do not operate or store near strong electrostatic fields. Take proper ESD precautions. 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 A 1.1 ± 0.1 36x SMT Pad 0.15 A B C 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. S689_A Dimensioning and tolerancing according to ASME Y14.5M-1994 Figure 6. SKY73023 36-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 July 26, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200634C PRELIMINARY DATA SHEET • SKY73023 DOWNCONVERSION MIXER 2.00 ± 0.05 4.00 8.00 ∅1.55 ± 0.05 0.30 ± 0.05 B 5.50 ± 0.05 A 1.75 ± 0.10 6.30 A 5o Max. 12.00 ± 0.30 Pin #1 Indicator B ∅1.50 Min. 1.70 6.30 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. All dimensions are in millimeters A C1222 Figure 7. SKY73023 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200634C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • July 26, 2007 9 PRELIMINARY DATA SHEET • SKY73023 DOWNCONVERSION MIXER Ordering Information Model Name SKY73023 Downconversion Mixer Manufacturing Part Number Evaluation Kit Part Number SKY73023-11 (Pb-free package) Copyright © 2007 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 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 10 July 26, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200634C