DATA SHEET SKY73120-11: 890-960 MHz Voltage Controlled Oscillator Applications Description • ISM band base station transceivers Skyworks SKY73120-11 Voltage-Controlled Oscillator (VCO) is a high performance signal source for high dynamic range transceivers. With a wide frequency operating range from 890 to 960 MHz, and 0 dBm output power and low phase noise (–110 dBc/Hz @ 25 kHz offset), the SKY73120-11 is an ideal solution for ISM band base station transceivers, RFID transceivers, and 2G/3G base station transceivers. • RFID transceivers • Fixed wireless • AMR radios • TETRA terminals and mobile stations • General purpose RF systems The SKY73120-11 VCO is manufactured using a robust silicon BiCMOS process and has been designed for optimum long-term reliability. The device is provided in a compact, 28-pin 6 x 6 mm Multi-Chip Module (MCM) package. The device package and pinout are shown in Figure 1. A functional block diagram is shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Features • Frequency range: 890 to 960 MHz • Integrated band selection • Output power = 0 dBm • Very low phase noise: –110 dBc/Hz @ 25 kHz offset • MCM (28-pin, 6 x 6 mm) Pb-free free (MSL3, 260 °C per JEDEC J-STD-020) SMT package RF_OUT GND GND GND GND GND GND GND Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances) compliant packaging. 28 27 26 25 24 23 22 21 18 N/C GND 4 17 N/C GND 5 16 BS1 GND 6 15 BS0 7 8 9 10 11 12 13 14 GND 3 GND GND GND 19 N/C GND 2 VTUNE GND GND 20 VDD GND 1 GND GND S1173 Figure 1. SKY73120-11 Pinout– 28-Pin MCM Package (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200777D • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • December 4, 2008 1 DATA SHEET • SKY73120-11 VCO RF_OUT Band Select S1174 BS0 BS1 VTUNE Figure 2. SKY73120-11 Functional Block Diagram Table 1. SKY73120-11 Signal Descriptions Pin # Name Description Pin # Name Description 1 GND Ground 15 BS0 Band select 0 2 GND Ground 16 BS1 Band select 1 3 GND Ground 17 NC No connection 4 GND Ground 18 NC No connection 5 GND Ground 19 NC No connection 6 GND Ground 20 VDD Power supply 7 GND Ground 21 GND Ground 8 GND Ground 22 GND Ground 9 GND Ground 23 GND Ground 10 VTUNE Tune voltage 24 GND Ground 11 GND Ground 25 GND Ground 12 GND Ground 26 GND Ground 13 GND Ground 27 GND Ground 14 GND Ground 28 RF_OUT RF output Technical Description The SKY73120-11 is a fully integrated VCO that includes varactors, a band select module, oscillator, output buffer, and RF balun. The output power from the RF balun is 0 dBm and the output impedance is designed to be 50 Ω. The band select module can be used to change the center operation frequency of the VCO by controlling the BS1 and BS0 pin signals. This allows the total frequency range to be extended by keeping the same Kv and phase noise performance. The control logic for the BS1 and BS0 pins is shown in Table 2 and illustrated in Figure 3. The band select pins BS0 and BS1 contain 10 kΩ pull-up resistors. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 December 4, 2008 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200777D DATA SHEET • SKY73120-11 VCO Table 2. Band Select Logic Table BS1 (Pin 16) BS0 (Pin 15) Minimum Output Frequency Range (MHz) (VTUNE = 0.2 to 2.8 V) 0 0 940 to 960 0 1 928 to 940 1 0 902 to 928 1 1 890 to 902 1000 980 960 Frequency (MHz) 940 920 900 880 Band Select = 00b Band Select = 01b Band Select = 10b Band Select = 11b 860 840 820 800 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Tune Voltage (V) 2.0 2.2 2.4 2.6 2.8 3.0 S1182 Figure 3. SKY73120-11 Operation Frequency vs Tuning Voltage and Band Select Package and Handling Information Electrical and Mechanical Specifications 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 absolute maximum ratings of the SKY73120-11 are provided in Table 3. The recommended operating conditions are specified in Table 4 and electrical specifications are provided in Table 5. Phase noise characteristics are shown in Figure 4. The SKY73120-11 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 Skyworks Application Note, PCB Design and 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. The PCB layout footprint for the SKY73120-11 is provided in Figure 5. Figure 6 shows the package dimensions for the 28-pin MCM and Figure 7 provides the tape and reel dimensions. Electrostatic Discharge (ESD) Sensitivity The SKY73120-11 ESD threshold level is 2500 VDC using Human Body Model (HBM) testing. This level applies to RF signal lines >100 MHz, analog and RF lines <100 MHz, digital lines, power supply lines, and ground pins. To avoid latent or visible ESD damage, always follow proper ESD handling precautions. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200777D • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • December 4, 2008 3 DATA SHEET • SKY73120-11 VCO Table 3. SKY73120-11 Absolute Maximum Ratings (Note 1) Parameter Symbol Min Typical Max Units 5.5 V Supply voltage VCC Storage temperature TST –40 +150 °C Operating case temperature TC –40 +85 °C Note 1: 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 values. Table 4. SKY73120-11 Recommended Operating Conditions Parameter Symbol Min Typical Max Units 3.3 3.6 V 2.8 V Supply voltage VCC 3.1 Tuning voltage VTUNE 0.2 50 Ω, maximum VSWR (load input) 2.0:1, all phases Load connected to RF output Band-select voltage level V V 2.3 BSHIGH BSLOW 0.1 Table 5. SKY73120-11 Electrical Characteristics (VDD = 3.3 V, TC = 25 °C Unless Otherwise Noted) Parameter Symbol Test Conditions Oscillation frequency Tuning voltage: @ 890 MHz @ 960 MHz Min Typical 890 Units 960 MHz V V 1 2 Band select = 11b Band select = 00b Tuning sensitivity Max 20 28 40 Output level 0 dBm Output impedance 50 Ω Harmonic suppression: 2nd harmonic 3rd harmonic –30 –35 –20 –20 dBc dBc Single sideband phase noise: @ 12.5 kHz offset @ 25 kHz offset @ 100 kHz offset @ 1 MHz offset –100 –110 –124 –144 –88 –95 –108 –128 dBc/Hz dBc/Hz dBc/Hz dBc/Hz Pushing VCC = 3.1-3.6 V 2.3 MHzp-p Pulling 12 dB RL 80 kHzp-p Current consumption 22 30 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 MHz/V December 4, 2008 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200777D mA DATA SHEET • SKY73120-11 VCO –60 –70 Single Sideband Phase Noise (dBc/Hz) –80 –90 –100 –110 –120 –130 –140 –150 –160 –170 1 10 100 1000 10000 Frequency Offset (kHz) S1199 Figure 4. Single Sideband Phase Noise Measurements @ 951 MHz, VTUNE = 1.5 V, and Band Select = 00b Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200777D • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • December 4, 2008 5 DATA SHEET • SKY73120-11 VCO 6.3 Stencil aperture size for center ground pads should be 80% to 100% (by area) of the solder mask opening of the package. 0.5 0.4 0.05 0.05 0.15 9X 1 6.3 0.8 0.9 Stencil and Metallization 6X 0.2 Component Outline Soldermask Opening Component Outline 6X 0.2 SMT Pad Detail Scale: 2X 8X This Rotation 8X Rotated 180o 6X Rotated 90o CW 6X Rotated 90o CCW 9X 1 6.4 Stencil Aperture Top View 6.3 2X 2.45 7X 1.8 Pin 28 4X 0.35 Pin 1 0.7 Pitch Typ 6.4 3.7 1.85 2X 2.75 7X 1.8 1.85 Component Outline 3.7 6.3 Solder Mask Opening Top View 4X 0.35 Component Outline 0.3 Typ Metallization Top View Thermal Via Array. ∅0.3 mm on 0.6 mm pitch. Additional vias in common ground pad will improve thermal 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 +20 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. S1197 All measurements are in millimeters Figure 5. PCB Layout Footprint for the SKY73120-11 6 x 6 MCM Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 December 4, 2008 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200777D 0 4X 2.45 B 4X 1.75 12X 2.9 6 4X 1.05 DATA SHEET • SKY73120-11 VCO Pin 28 Pin 1 Indicator (see Detail B) C Pin 1 Indicator Pin 1 4X 1.75 4X 1.05 6 0 4X 0.35 A 16X 2.9 0.1 Top View Solder Mask Opening 0.2 A B C A 4X 0.35 0.9 ± 0.1 0.15 A B C Side View 28X SMT Pad 0.1 A B C Bottom View 0.55 ± 0.1 3.7 Solder Mask Edges 0.2 X 0.2 0.4 ± 0.05 Metal Pad Edge 3.7 (0.1) Detail A SMT Pad Scale: 2X 6X 6X 8X 8X This rotation Rotated 180o Rotated 90o CW Rotated 90o CCW 3X R0.2 Detail B All measurements are in millimeters Dimensioning and tolerancing according to ASME Y14.5M-1994 S1172 Figure 6. SKY73120-11 28-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200777D • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • December 4, 2008 7 DATA SHEET • SKY73120-11 VCO 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 8o 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 7. SKY73120-11 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 December 4, 2008 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200777D DATA SHEET • SKY73120-11 VCO Ordering Information Model Name SKY73120-11 890-960 MHz VCO Manufacturing Part Number SKY73120-11 (Pb-free package) Evaluation Kit Part Number TW17-D640 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. 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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 200777D • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • December 4, 2008 9