DATA SHEET SKY65342-11: 450-470 MHz Front-End Module Applications x Tetra radio x Remote metering x GSM450 x WLL SPDT Switch Transmit Port PA Harmonic Filter Antenna Port Receive Port Features x Transmit output power > +29 dBm x High gain in transmit path = 32 dB x High transmit/receive isolation > 30 dB x Internal RF match and bias circuits x Single DC supply : +3.6 V x Small, MCM (12-pin, 8 x 8 mm) package (MSL3, 260 qC per JEDEC J-STD-020) Skyworks offers lead (Pb)-free RoHS (Restriction of Hazardous Substances) compliant packaging. S1346 Figure 1. SKY65342-11 Block Diagram Description The SKY65342-11 is a highly efficient Front-End Module (FEM) that incorporates a transmit/receive (T/R) path and an antenna T/R switch. The transmit path consists of a high efficiency power amplifier (PA) followed by a harmonic filter to reject harmonic frequencies. The PA is implemented using Skyworks highly reliable Heterojunction Bipolar Transistor (HBT) process and is Class AB biased to provide maximum efficiency with a low spurious output. A high linearity and high isolation single-pole, double-throw (SPDT) switch is used at the common antenna interface between the transmit and receive paths. The receive path is a low insertion loss “through” path with input and output ports internally matched to 50 Ω. The SKY65342-11 FEM uses Surface Mount Technology (SMT) in the form of a Multi-Chip Module (MCM), which allows for a highly manufacturable, low-cost solution. The device is provided as a compact, 12-pin 8 x 8 mm 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 201139C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 26, 2009 1 VCC1 PA_EN VCC2 DATA SHEET • SKY65342-11 FRONT-END MODULE 12 11 10 V1 GND 2 8 V2 RX_IN 3 7 ANT 4 5 6 VREF2 9 VREF1 1 VC_BIAS TX_RFIN S1641 Figure 2. SKY65342-11 Pinout – 12-Pin MCM (Top View) Technical Description The SKY65342-11 provides input and output amplifier stages, and is internally matched for optimum efficiency. An active bias circuit provides the input and output stages with excellent gain tracking over temperature and voltage variations. The module operates with positive DC voltages, and maintains high efficiency and good linearity. The nominal operating voltage is 3.6 V for maximum power, but the device can be operated at slightly lower voltages for other mobile applications. The input and output stages are independently supplied using the VCC1 and VCC2 supply lines (pins 12 and 10, respectively). The bias reference voltages for stages 1 and 2 are supplied using common lines VREF1 and VREF2 (pins 5 and 6, respectively). The DC control voltage that sets the bias for stages 1 and 2 is supplied by the VC_BIAS signal, pin 4. Electrical and Mechanical Specifications Signal pin assignments and functional pin descriptions are described in Table 1. The absolute maximum ratings of the SKY65342-11 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 SKY65342-11 are illustrated in Figures 3 through 7. The state of the SKY65342-11 is determined by the logic provided in Table 5. 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 SKY65342-11 is rated to Moisture Sensitivity Level 3 (MSL3) at 260 qC. 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 Information – RF Modules, document number 101568. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 October 26, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201139C DATA SHEET • SKY65342-11 FRONT-END MODULE Table 1. SKY65342-11 Signal Descriptions Pin # Name Description Pin # 7 Name ANT Description 1 TX_RFIN Transmit RF input Antenna 2 GND Ground 8 V2 Switch control 3 RX_IN Receive RF input 9 V1 Switch control 4 VC_BIAS +3.6 V DC supply 10 VCC2 +3.6 V DC supply 5 VREF1 +3.6 V DC supply 11 PA_EN PA enable (on = 2.5-3.6 V, off = 0-0.2 V) 6 VREF2 +3.6 V DC supply 12 VCC1 +3.6 V DC supply Table 2. SKY65342-11 Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Maximum Units 4 V Supply voltage (VCC1, VCC2, VREF1, VREF2, VC_BIAS) VCC Input power PIN +5 dBm Supply current ICC 850 mA Case operating temperature TC –40 +85 qC Storage temperature TST –65 Junction temperature TJ +125 qC +150 qC 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 value. Exceeding any of the limits listed here may result in permanent damage to the device. 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. SKY65342-11 Recommended Operating Conditions Parameter Minimum Typical Maximum Units VCC 3.0 3.6 4.0 V Case operating temperature TC –40 +85 qC Storage temperature TST –55 +125 qC Supply voltage (VCC1, VCC2, VREF1, VREF2, VC_BIAS) Symbol Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201139C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 26, 2009 3 DATA SHEET • SKY65342-11 FRONT-END MODULE Table 4. SKY65342-11 Electrical Specifications (Note 1) (Frequency = 460 MHz, VCC1 = VCC2 = VREF1 = VREF2 = VC_BIAS = 3.6 V, TC = +25 °C, Unless Otherwise Noted) Parameter Symbol Test Condition Operating frequency range f Transmit path small signal gain G CW, PIN = –30 dBm Transmit saturated output power PSAT Transmit path Noise Figure NF Transmit path harmonics (2nd to 6th) Power Added Efficiency PAE Receive path insertion loss RX_LOSS Transmit/receive path isolation ISOL Min Typical 450 Max Units 470 MHz 30 34.6 dB CW, PIN = 0 dBm +28.5 +29.1 dBm CW, PIN = 0 dBm 53 CW, PIN = 0 dBm 31 5.5 27 % 1.0 33 dB dB Input return loss S11 15 17 dB Output return loss S22 10 15 dB Quiescent current IQ No RF 85 110 mA 650 720 mA Operating current IOP POUT = +29 dBm Leakage current ILEAK No RF input, module in standby mode Maximum VSWR for stable operation VSWRMAX CW 6:1 2 μA 8:1 – Note 1: Performance is guaranteed only under the conditions listed in this Table and is not guaranteed over the full operating or storage temperature ranges. Operation at elevated temperatures may reduce reliability of the device. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 dB dBc 34 0.6 CW 6.5 60 October 26, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201139C DATA SHEET • SKY65342-11 FRONT-END MODULE 36 34 Gain (dB) 32 30 28 +25 oC +85 oC –40 oC 26 24 22 0 +5 +10 +15 +20 +25 +30 +35 POUT (dBm) S1643 Transmit Path Small Signal Gain (dB) Figure 3. Gain vs Output Power Over Temperature @ 460 MHz (VCC = 3.6 V) 35.5 35.3 35.1 34.9 34.7 34.5 +25 oC +85 oC –40 oC 34.3 34.1 33.9 33.7 33.5 450 460 470 Frequency (MHz) S1644 Figure 4. Transmit Path Small Signal Gain vs Frequency Over Temperature (VCC = 3.6 V) 800 Operating Current (mA) 700 600 500 400 300 +25 oC +85 oC –40 oC 200 100 0 0 +5 +10 +15 +20 POUT (dBm) +25 +30 +35 S1645 Figure 5. Operating Current vs Output Power Over Temperature @ 460 MHz (VCC = 3.6 V) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201139C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 26, 2009 5 DATA SHEET • SKY65342-11 FRONT-END MODULE Harmonic Suppression (dBc) 90 85 80 75 70 65 60 55 50 F2 F3 F4 F5 F6 F7 F8 F9 F10 Harmonic Order S1646 Figure 6. Harmonics Level @ 460 MHz (VCC = 3.6 V) Receive Path insertion Loss (dB) –0.53 –0.54 –0.55 –0.56 –0.57 –0.58 +25 oC +85 oC –40 oC –0.59 –0.60 –0.61 450 460 470 Frequency (MHz) S1647 Figure 7. Receive Path Insertion Loss vs Frequency Over Temperature (VCC = 3.6 V) Table 5. SKY65342-11 FEM Switch Control Logic Mode V1 Signal (Pin 9) V2 Signal (Pin 8) Transmit 1 0 Receive 0 1 Note: Logic level 0: 0 V to 0.5 V Logic level 1: 2.0 V to VCC Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 October 26, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201139C DATA SHEET • SKY65342-11 FRONT-END MODULE Evaluation Board Description from the device. Therefore, design the connection to the ground pad to dissipate the maximum wattage produced by the circuit board. Multiple vias to the grounding layer are required. The SKY65342-11 Evaluation Board is used to test the performance of the SKY65342-11 FEM. The Evaluation Board schematic diagram is shown in Figure 8. An assembly drawing for the Evaluation Board is shown in Figure 9 and the layer detail is provided in Figure 10. The layer detail physical characteristics are noted in Figure 11. Table 6 provides the Bill of Materials (BOM) list for Evaluation Board components. NOTE: A poor connection between the slug and ground increases junction temperature (TJ), which reduces the lifetime of the device. Circuit Design Considerations Package Dimensions The following design considerations are general in nature and must be followed regadless of final use or configuration: VCC1 12 J2 SMA 1 TX_RFIN 2 GND PA Enable 11 PA_EN DC Supply 1 2. The ground pad of the SKY65342-11 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 10 VCC2 1. Paths to ground should be made as short as possible. DC Supply 2 The phone board layout footprint for the SKY65342-11 is shown in Figure 12. Package dimensions for the 12-pin MCM are shown in Figure 13, and tape and reel dimensions are provided in Figure 14. V1 SKY65342-11 V2 9 8 Switch Logic Switch Logic J4 SMA VREF2 5 6 7 Voltage Reference 2 Voltage Bias 4 ANT VREF1 RX_IN Voltage Reference 1 3 VC_BIAS J3 SMA S1642 Figure 8. SKY65342-11 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201139C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 26, 2009 7 DATA SHEET • SKY65342-11 FRONT-END MODULE S1520 Figure 9. SKY65342-11 Evaluation Board Assembly Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 October 26, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201139C DATA SHEET • SKY65342-11 FRONT-END MODULE Layer 1: Top – Metal Layer 2: Ground Layer 3: Power Plane Layer 4: Solid Ground Plane S1349 Figure 10. SKY65342-11 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201139C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 26, 2009 9 DATA SHEET • SKY65342-11 FRONT-END MODULE Cross Section Name Thickness (mm) Material Tmask 0.010 Solder Resist L1 0.035 Cu, 1 oz. Dielectric 0.300 Rogers 4003 L2 0.035 Cu, 1 oz Dielectric 0.100 FR4 L3 0.035 Cu, 1 oz Dielectric 0.300 FR4 L4 0.035 Cu, 1 oz Bmask 0.010 Solder resist S1366 Figure 11. Layer Detail Physical Characteristics Table 6. SKY65342-11 Evaluation Board Bill of Materials Component J2, J3, J4 Quantity 3 Size Value Vendor Part Number 615R54-021 SC1, SC2, SC3, SC4 4 92196A052 Backframe 1 1056-101 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 October 26, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201139C DATA SHEET • SKY65342-11 FRONT-END MODULE 8.685 Stencil aperture 60-80% of module/pkg solder mask area 2X 1.65 12X 0.81 12X 1.043 2X 1.91 CL 8.685 Component Outline CL Stencil Aperture Top View 8.685 6X 0.81 Pin 12 8.785 Pin 12 1.65 Typ 1.65 ∅5.080 Solder 12X 1.143 Mask Opening 11X 1.043 Pin 1 Pin 1 12X 0.91 CL CL 8.685 8.785 1.91 Typ 1.91 Typ 0.25 Thermal Via Array ∅0.3 mm on 1.0 mm pitch. Additional vias in common ground pad will improve thermal performance. NOTE: It is recommended that thermal vias should be filled with 30-35 μm Cu plating. CL Metallization Top View CL Component Outline Component Outline Solder Mask Opening Top View S1357 All measurements are in millimeters Figure 12. SKY65342-11 Phone Board Layout Footprint Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201139C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 26, 2009 11 8.385 6x 4.093 DATA SHEET • SKY65342-11 FRONT-END MODULE B Pin 1 Indicator C 0.3 Solder Mask Opening 0.15 Metal Pad Pin 1 Indicator (3.4) Pin 12 Top (2.7) 0 8.385 Pin 1 A 4x 1.91 6x 4.093 0.05 A B C 0 0.1 12x SMT Pad 5.08 Solder Mask Opening 4x 1.65 A 1.35 ± 0.1 0.15 A B C 0.15 A B C Side View Top View 0.793 ± 0.1 Bottom View (0.1) Metal Pad Edge 0.81 ± 0.05 Detail A 3x - This rotation 3x - Rotated 180o o 3x - Rotated 90o 3x - Rotated 90 Dimensioning and tolerancing according to ASME Y14.5M-1994. All measurements are in millimeters S1354 Figure 13. SKY65342-11 12-Pin MCM Package Dimensions 12.00 ± 0.10 ∅1.50± 0.10 Pin #1 5o Max 8.88 ± 0.10 A 4.00 ± 0.10 2.00 ± 0.10 B 1.75 ± 0.10 A 7.50 ± 0.10 16.00 +0.30/–0.10 2.14 ± 0.10 B B ∅1.50 ± 0.25 8o Max 8.89 ± 0.10 A Notes: 1. Carrier tape: black conductive poly carbonate or polystyrene. 2. Cover tape material: transparent conductive PSA. 3. Cover tape size: 13.3 mm width. 4. All measurements are in millimeters. S1252 Figure 14. SKY65342-11 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 October 26, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201139C DATA SHEET • SKY65342-11 FRONT-END MODULE Ordering Information Model Name SKY65342-11 450-470 MHz Front-End Module Manufacturing Part Number SKY65342-11 (Pb-free package) Evaluation Kit Part Number TW17-D315-003 Copyright © 2009 Skyworks Solutions, Inc. All Rights Reserved. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201139C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 26, 2009 13