DATA SHEET SKY65187-11: 2000-2230 MHz Variable Gain Amplifier Applications Description • WCDMA base stations • Femto cells Skyworks SKY65187-11 is a high linearity, Variable Gain Amplifier (VGA) module. The device includes an input Low-Noise Amplifier (LNA), a variable voltage attenuator, and an output Power Amplifier (PA). The two amplifiers and voltage attenuator are optimized for superior ACLR performance with WCDMA signals. Features The high linearity (high OP1dB, OIP3, and ACLR) and high efficiency of this device make it ideal for use at the final stage (or close to the final stage) of a WCDMA transmit chain. • Frequency range: 2000 to 2230 MHz • High gain: >24 dB • Attenuation range: > 30 dB • OP1dB: >+28 dBm • ACLR < –65 dBc for POUT = +12 dBm • Single DC supply: +5 V The output of the first PA (PA1) is matched to the input of the VCA. The output of the VCA is matched to the input of the second PA (PA2). The RF_IN and RF_OUT signals (pins 1 and 8, respectively) are both internally matched, including DC blocking capacitors. • Small MCM (12-pin, 8.385 x 8.385 mm) SMT package (MSL3, 260 °C per JEDEC J-STD-020) The SKY65187-11 VGA uses low-cost Surface Mount Technology (SMT) in the form of a compact, 8 x 8 mm 12-pin Multi-Chip Module (MCM), which allows for a highly manufacturable low-cost solution. 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. Figure 1. SKY65187-11 Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201465D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 24, 2012 1 DATA SHEET • SKY65187-11 VGA Figure 2. SKY65187-11 Pinout – 12-Pin MCM (Top View) Table 1. SKY65187-11 Signal Descriptions Pin # Name Description Pin # Name Description 1 RF_IN RF input 7 GND Ground 2 GND Ground 8 RF_OUT RF output 3 VCTRL Variable attenuator control voltage 9 GND Ground 4 GND Ground 10 VCC_AMP2 Voltage supply for PA2 (after the variable voltage attenuator) 5 GND Ground 11 VCC_AMP1 Voltage supply for PA1 (before the variable voltage attenuator) 6 GND Ground 12 GND Ground Electrical and Mechanical Specifications The absolute maximum ratings of the SKY65187-11 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Typical performance characteristics of the SKY65187-11 are illustrated in Figures 3 through 19. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 February 24, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201465D DATA SHEET • SKY65187-11 VGA Table 2. SKY65187-11 Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Supply voltage VCC_AMP1, VCC_AMP2 5.5 V Control voltage VCTL 5.0 V RF output power (CW) POUT +29 dBm Thermal resistance ΘJC 38.6 °C/W Operating case temperature TC –40 +85 °C Storage case temperature TSTG –55 Junction temperature TJ Note: +125 °C +150 °C 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. 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. SKY65187-11 Recommended Operating Conditions Parameter Symbol Frequency range f RF output power (CW) POUT Supply voltage, measured at terminals of Evaluation Board VCC_AMP1, VCC_AMP2 Variable voltage attenuator control range VCTRL Ruggedness, load VSWR with no permanent damage PMAX_LOAD Operating case temperature TC Minimum Typical Maximum 2110 4.75 5.00 0 –30 Units 2170 MHz +25 dBm 5.25 V 4.5 V 10:1 – +85 °C Table 4. SKY65187-11 Electrical Specifications (Note 1) (VCC_AMP1 = VCC_AMP2 = 5 V, VCTRL = 0 V, f = 2.14 GHz, TC = +25 °C, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical 2110 Max Units 2170 MHz Frequency range f Small signal gain |S21| CW 24.0 25.5 dB Gain control range G_RANGE CW 27 30 dB Gain flatness G_FLATNESS CW Output 1dB Compression Point OP1dB CW +27 +28 dBm 3rd Order Output Intercept Point OIP3 PTONE = +12 dBm, Δf = 1 MHz +40.0 +41.5 dBm ACLR for POUT = +12 dBm ACLR WCDMA, test mode 1 Noise Figure NF At maximum gain Input return loss |S11| 10 20 dB Output return loss |S22| 8 10 dB Quiescent current IQ No RF 288 330 mA Operating current IOP POUT = +12 dBm 300 380 mA Maximum VSWR for stable operation VSWR_MAX CW 0.8 dB –66.5 –65.0 dBc 2.7 3.5 dB 8:1 – Note 1: Performance is guaranteed only under the conditions listed in this Table. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201465D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 24, 2012 3 DATA SHEET • SKY65187-11 VGA Typical Performance Characteristics (VCC_AMP1 = VCC_AMP2 = 5 V, VCTRL = 0 V, f = 2.14 GHz, TC = +25 °C, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Figure 3. Quiescent Current vs VCC Figure 4. Input Return Loss vs Frequency Over Temperature With Minimum Attenuation Figure 5. Input Return Loss vs Frequency Over Temperature With Maximum Attenuation Figure 6. Output Return Loss vs Frequency Over Temperature With Minimum Attenuation Figure 7. Output Return Loss vs Frequency Over Temperature With Maximum Attenuation Figure 8. Gain vs Frequency Over Control Voltage Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 February 24, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201465D DATA SHEET • SKY65187-11 VGA Figure 9. Gain vs Output Power Over Frequency Figure 10. Gain vs Output Power Over Temperature Figure 11. Current vs Output Power Over Voltage Figure 12. Current vs Output Power Over Temperature Figure 13. OIP3 vs Output Power Over Frequency Figure 14. OIP3 vs Output Power Over Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201465D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 24, 2012 5 DATA SHEET • SKY65187-11 VGA Figure 15. OIP3 vs Output Power Over Voltage Figure 16. ACLR vs Output Power Over Frequency (WCDMA Test Model 1 With 64 DPCH) Figure 17. ACLR vs Output Power Over Temperature (WCDMA Test Model 1 With 64 DPCH) Figure 18. Noise Figure vs Frequency Over Voltage Figure 19. Noise Figure vs Frequency Over Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 February 24, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201465D DATA SHEET • SKY65187-11 VGA Evaluation Board Description Testing Procedure The Skyworks SKY65187-11 Evaluation Board is used to test the performance of the SKY65187-11 VGA. An Evaluation Board schematic diagram is provided in Figure 20. An assembly drawing for the Evaluation Board is shown in Figure 21 and the layer detail is provided in Figure 22. The layer detail physical characteristics are noted in Figure 23. Use the following procedure to set up the SKY65187-11 Evaluation Board for testing: Capacitors C1, C2, and C3 provide DC bias decoupling and RF bypass for VCC_AMP1 (pin 11). Capacitors C4, C5, and C6 provide DC bias decoupling and RF bypass for VCC_AMP2 (pin 10). Capacitor C7 provides decoupling for VCTRL (pin 3). 2. Connect a signal generator to the RF signal input port. Set it to the desired RF frequency at a power level of –20 dBm or less to the Evaluation Board but do NOT enable the RF signal. Pins 1 and 8 are the RF input and output signals, respectively. Pins 2, 4, 5, 6, 7, 9, 12, and the package backside metal are ground pins that provide the DC, RF, and thermal ground. 4. Enable the power supply. Circuit Design Configurations The following design considerations are general in nature and must be followed regardless of final use or configuration. 1. Proper isolation must be provided between the VCC_AMP1 and VCC_AMP2 pins. 2. Paths to ground should be made as short as possible. 3. The ground pad of the SKY65187-11 VGA 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 amplifier. As such, design the connection to the ground pad to dissipate the maximum wattage produced to the circuit board. Multiple vias to the grounding layer are required. Filled or capped vias are recommended. 4. It is recommended that the layout for the VCC_AMP1 and VCC_AMP2 signals follow what is shown in Figure 21. The VCC_AMP1 and VCC_AMP2 traces can be tied together to share the same power supply. The connecting node should not be placed close to the package pins. The connecting node should be connected closer to components C1 and C4 (see Figure 20). This is to provide isolation between VCC_AMP1 and VCC_AMP2. NOTE: Junction temperature (Tj) of the device increases with a poor connection to the slug and ground. This reduces the lifetime of the device. 1. Connect a 5.0 V supply to the VCC_AMP1 and VCC_AMP2 pins. Connect the VCTRL signal to a power supply and set the power supply to 0 V. If available, enable the current limiting function of the power supply to 450 mA. 3. Connect a spectrum analyzer to the RF signal output port. 5. Enable the RF signal. 6. Take measurements. CAUTION: If any of the output signals exceed the rated maximum values, the SKY65187-11 Evaluation Board can be permanently damaged. 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 SKY65187-11 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 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. Package Dimensions The PDB footprint drawing for the SKY65187-11 is shown in Figure 24. Package dimensions for the 12-pin MCM are shown in Figure 25, and tape and reel dimensions are provided in Figure 26. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201465D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 24, 2012 7 DATA SHEET • SKY65187-11 VGA J3 2 VCTRL VDD 1 VCC 4-Header 11 GND 12 J1 1 RF Input RF_IN 10 VCC_AMP2 3 VCC_AMP1 4 C3 DNI C2 1000 pF C1 10 μF C6 22 pF C5 1000 pF C4 10 μF PA1 Voltage Supply PA2 Voltage Supply 9 GND J2 8 2 GND 3 7 GND 4 5 GND VCTRL GND C7 1000 pF GND Variable Attenuator Control Voltage RF Output RF_OUT 6 S2329 Figure 20. SKY65187-11 Evaluation Board Schematic J3 J1 J2 S2330 Figure 21. SKY65187-11 Evaluation Board Assembly Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 February 24, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201465D DATA SHEET • SKY65187-11 VGA Layer 1: Top – Metal Layer 2: Ground Layer 3: Power Plane Layer 4: Solid Ground Plane S2331 Figure 22. SKY65187-11 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201465D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 24, 2012 9 DATA SHEET • SKY65187-11 VGA Cross Section Name Thickness (mm) Material εr Pri 0.035 Cu-1 oz. – Die1 0.250 Rogers 4350 – L2 0.035 Cu-1 oz. – Die2 0.200 FR4 4.0 L3 0.035 Cu-1 oz. – Die3 0.250 FR4 4.0 Sec 0.035 Cu-1 oz. – S2631 Figure 23. Layer Detail Physical Characteristics Pin 12 Stencil aperture size of 80% to 100% of the module/pkg solder mask openings 8.685 4X 1.65 Pitch Pin 1 Indicator 0.20 X 0.20 12X 1.091 Pin 1 12X 0.81 25X 0.875 8.685 4X 1.91 Pitch Exposed Center Pad Component Outline 0.125 Typ 25X 0.875 Stencil Aperture Top View 8.685 Thermal Via Array, ∅0.3 mm on 0.6 mm pitch will improve thermal performance. NOTE: thermal vias should be tented with solder mask, 30-35 mm Cu plating recommended. Pin 12 Pin 12 8.785 1.65 Pitch 4X 1.65 Pitch Pin 1 Indicator 0.20 X 0.20 12X 1.191 0.25 Typ. Pin 1 Pin 1 12X 0.91 8.685 8.785 4X 1.91 Pitch 2X 2.4375 0.6 Pitch 5X 0.81 Component Outline Component Outline 5X 1.091 Exposed Center Pad Metallization Top View 2X 2.4375 Solder Mask Opening Top View S2367 All dimensions are in millimeters Figure 24. SKY65187-11 PCB Layout Footprint Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 Opening size of 60% to 100% of exposed center opening shown February 24, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201465D B Pin 1 Indicator C 10X 2 8.385 6X 4.0925 DATA SHEET • SKY65187-11 VGA Pin 1 Indicator See Detail B 6X 4.0925 Pin 1 10X 2 10X 1 8.385 0 A 0.15 A B C 0.10 12x SMT Pad 0.1 M A B C Side View Top View 0.841 ± 0.1 10X 1 A 1.35 ± 0.1 (0.1) 0.875 0 4X 1.65 4X 1.91 24X Solder Mask Opening See Detail C 0.2 A B C Bottom View 0.875 0.2 x 0.2 Metal Pad Edge 0.81 ± 0.05 0.875 0.875 5X R0.05 Max Soldermask Edges Detail A Pad Scale: 2X 4X R0.05 Max Soldermask Edges Detail B 24X Detail C Scale: 2X Scale: 2X 1X This Rotation 24X This Rotation 3X This Rotation 3X Rotated 180° 3X Rotated 90° CW 3X Rotated 90° CCW Dimensioning and tolerancing according to ASME Y14.5M-1994. Pads are metal defined. All measurements are in millimeters S2366 Figure 25. SKY65187-11 12-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201465D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 24, 2012 11 DATA SHEET • SKY65187-11 VGA Pin #1 ∅1.50 ± 0.10 2.00 ± 0.10 12.00 ± 0.10 4.00 ± 0.10 0.318 ± 0.013 T 1.75 ± 0.10 B A A 7.50 ± 0.10 5° Max 8.88 ± 0.10 (Bo) 16.00 +0.30/–0.10 B 2.14 ± 0.10 (Ko) ∅1.50 ± 0.25 B 8° Max 8.89 ± 0.10 (Ao) A Notes: 1. Carrier tape material: black conductive polycarbonate or polystyrene. 2. Cover tape material: transparent conductive PSA. 3. Cover tape size: 13.3 mm width. 4. Typical ESD surface resistivity is ≤108 Ohms/square per EIA, JEDEC tape and reel specification. 5. Tolerance: .XX = ±0.10 mm. 6. All measurements are in millimeters. Figure 26. SKY65187-11 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 February 24, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201465D S2630 DATA SHEET • SKY65187-11 VGA Ordering Information Model Name SKY65187-11 2000-2230 MHz Variable Gain Amplifier Manufacturing Part Number SKY65187-11 Evaluation Board Part Number TW16-D590 Copyright © 2011, 2012 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. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 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 201465D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 24, 2012 13