PRELIMINARY DATA SHEET SKY65377-21: 450 MHz Transmit/Receive Front-End Module Applications Automated meter reading Advanced metering infrastructure 2 Control Logic Digital Control VPC ISM systems PA Matching Network TX Harmonic Filter Features Range extender Transmit output power > +30 dBm ANT RX High-efficiency PA Analog power control Integrated control logic Internal RF match and bias circuits 203128-001 Figure 1. SKY65377-21 Block Diagram All RF ports internally DC blocked Description Shutdown mode The SKY65377-21 is a high-performance, transmit/receive (T/R) front-end module (FEM). The device provides a complete T/R chain with T/R switches. Small footprint, MCM (28-pin, 6 x 6 mm) package (MSL3, 260 C per JEDEC J-STD-020) Skyworks GreenTM products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of GreenTM, document number SQ04–0074. The device transmit chain features +30 dBm output power and a 40 percent Power Added Efficiency (PAE). The module also has a shutdown mode. The device is mounted in a 28-pin, 6 x 6 mm Multi-Chip Module (MCM) surface-mount technology (SMT) package, which allows for a highly manufacturable low-cost solution. A block diagram of the SKY65377-21 is shown in Figure 1. The device package and pinout for the 28-pin MCM 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 204030A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 26, 2016 1 GND VCC_TX3 VCC_TX2 VCC_TX1 N/C 27 26 25 24 23 21 GND EN 3 20 TX N/C 4 19 GND VPC 5 18 RX GND 6 17 N/C ANT 7 16 VDD1 GND 8 15 GND 9 10 11 12 13 14 N/C 2 N/C GND GND 22 GND TR 28 N/C 1 GND GND GND PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE 204030-002 Figure 2. SKY65377-21 Pinout (Top View) Table 1. SKY65377-21 Signal Descriptions Pin Name Description Pin Name Description 1 GND Ground 15 GND Ground 2 TR Digital control input: transmit/receive mode 16 VDD1 3.6 V power supply 3 EN Digital control input: shutdown mode 17 N/C Not connected 4 N/C Not connected 18 RX Receive output 5 VPC Transmit output power adjustment 19 GND Ground 6 GND Ground 20 TX Transmit path input port. Internally matched to 50 Ω. 7 ANT Antenna switch common port. Internally matched to 50 Ω. 21 GND Ground 8 GND Ground 22 GND Ground 9 GND Ground 23 N/C Not connnected 10 N/C Not connected 24 VCC_TX1 3.6 V power supply 11 GND Ground 25 VCC_TX2 3.6 V power supply 12 GND Ground 26 VCC_TX3 3.6 V power supply 13 N/C Not connected 27 GND Ground 14 N/C Not connected 28 GND Ground Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 May 26, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204030A PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE Technical Description Operation Mode Control The SKY65377-21 consists of a complete T/R chain with T/R switches contained in the module. The module has a shutdown mode to minimize power consumption. The three operating modes are controlled by the two digital pins (TR and EN, pins 2 and 3, respectively). The control logic truth table is provided in Table 2. Two digital input pins (TR and EN) are used to select between transmit, receive, or shutdown mode. Electrical and Mechanical Specifications Transmit Path The transmit path contains a power amplifier (PA) optimized for saturated performance. The PA output is internally matched for optimum output power and efficiency into a 50 Ω load impedance. The PA output is passed through an harmonic filter before being fed through the switch. The PA input provides a good return loss into a 50 Ω source impedance. The absolute maximum ratings of the SKY65377-21 are provided in Table 3. Recommended operating conditions are specified in Table 4. Electrical specifications are provided in Tables 5, 6, and 7. Transmit output power is controlled by the VPC pin, which is normally set to 3.6 V DC voltage. The nominal DC input impedance into the VPC pin is 50 kΩ. Table 2. SKY65377-21 Operating Modes Truth Table1 Control Voltage Operating Mode Transmit Internal States TR (Pin 2) EN (Pin 3) PA T/R Switch 1 1 On TX Receive 0 1 Off RX Shutdown2 X 0 Off Open 1 See Recommended Operating Conditions (Table 4) for logic 0 and 1 characteristics. “X” = don’t care state, defined as a valid state of logic 1 or 0. Control signals must be a valid logic 1 or 0. Performance is not guaranteed if control inputs are floated. 2 In the high state, TR and EN have an input current of 33 μA due to an internal 100 kΩ pulldown resistance. For the lowest leakage current, the high state is not recommended for TR when the device is in shutdown mode (EN = 0). Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 204030A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 26, 2016 3 PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE Table 3. SKY65377-21 Absolute Maximum Ratings1 Parameter PA supply voltage Symbol Minimum Maximum Units –0.3 +6.0 V VCC_TX1/2/3 Digital supply voltage VDD1 –0.5 +5.5 V Digital control voltage (TR and EN) VCTL –0.5 VDD1 + 0.3 V Transmit output power control voltage VPC –0.3 +5.0 V Receive RF input power (ANT) PIN_ANT +33 dBm Transmit RF input power PIN_TX +5 dBm Operating case temperature2 TC –40 +85 °C Storage temperature TSTG –40 +150 °C Junction temperature TJ +150 °C Voltage Standing Wave Ratio (ANT port) VSWR 10:1 Electrostatic discharge: ESD Charged Device Model (CDM), Class 3 Human Body Model (HBM), Class 1A 1000 250 V V 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. 2 Nominal thermal resistance, junction-to-case, is 18 °C/W. ESD HANDLING: 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 when handling or transporting. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industrystandard ESD handling precautions should be used at all times. Table 4. SKY65377-21 Recommended Operating Conditions Parameter Frequency range Symbol f Minimum Typical 450 Maximum Units 470 MHz Digital supply voltage VDD1 3.0 3.6 3.8 V PA supply voltage VCC_TX1/2/3 3.4 3.6 3.8 V Digital input voltage (TR and EN): VCTL 0.7 VDD1 V V VDD1 V +5 dBm 50 % Logic 0 Logic 1 0 1.6 Transmit output power control voltage VPC Transmit RF input power (TX) PIN_TX Transmit duty cycle 0 3.6 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 May 26, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204030A PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE Table 5. SKY65377-21 DC Electrical Specifications1 (VDD = VCC_TX1/2/3 = VPC = 3.6 V, TC = 25 C, No RF Input Power, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units μA Quiescent current, receive mode IQ VDD1 quiescent current, transmit mode IQ_VDD1 VPC = 3.6 V 46 22 30 mA VCC_TX1/2/3 operating current, transmit mode IOP_TX POUT = +30 dBm, VPC = 3.6 V, f = 460 MHz 675 760 mA 55 mA VCC_TX1/2/3 quiescent current, transmit mode IQ_TX 25 VCC_RX quiescent current, shutdown mode2 IQ_SD_RX 3.6 μA VCC_TX1/2/3 quiescent current, shudown mode2 IQ_SD_TX 0.6 μA IH IL 33 0 μA μA Digital input current2: Logic 1 Logic 0 1 Performance is guaranteed only under the conditions listed in this table. Modes are established as indicated in Table 2. 2 Not production tested. Table 6. SKY65377-21 Electrical Specifications: Receive Mode1 (VDD = VCC_TX1/2/3 = VPC = 3.6 V, TC = 25 C, f = 450 to 470 MHz, 50 Ω Source and Load Impedance, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units 0.5 1.0 dB Insertion loss IL Third order input intercept point2 IIP3 +30 dBm Input return loss |S11| 20 dB Output return loss |S22| 20 dB Transition time2 T 4.2 μs PIN = 0 dBm/tone, 200 kHz spacing 1 Performance is guaranteed only under the conditions listed in this table. Modes are established as indicated in Table 2. 2 Not production tested. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 204030A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 26, 2016 5 PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE Table 7. SKY65377-21 Electrical Specifications: Transmit Mode1 (VDD = VCC_TX1/2/3 = VPC = 3.6 V, POUT = +30 dBm, TC = 25 C, f = 450 to 470 MHz, 50 Ω Source and Load Impedance, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units TX to ANT Path Output power2 POUT Saturated signal gain dBm 29.5 dB 50 dB GSS Output power control PCTL Power-added efficiency4 PAE 2nd to 10th harmonic5 2fo to 10fo Small signal input return loss |S11| Non-harmonic spurious4 PSPUR Power on time4 30 VPC = 0 V to 3.6 V3 40 Without external filter 8 40 % –60 dBc 16 dB POUT = +30 dBm, load VSWR 6:1, all phases T –43 2.6 1 Performance is guaranteed only under the conditions listed in this table. 2 Output power rated at the antenna output. PA output power is actually 1.5 dB higher. 3 Output power control is the difference between the output power at VPC = 3.6 V and VPC = 0 V. 4 Not production tested. 5 Only the 2nd to 5th harmonics have been production tested. The 6th to 10th harmonics are characterized only. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 May 26, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204030A dBm μs PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE Evaluation Board Description Package and Handling Information The SKY65377-21 Evaluation Board is used to test the performance of the SKY65377-21 T/R FEM. A typical application schematic diagram is provided in Figure 3. A low-pass filter (LPF) can be incorporated on the ANT port to provide additional rejection of PA output harmonic levels and/or limit unwanted signals from entering the receive path. 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. An Evaluation Board schematic diagram is provided in Figure 4. An assembly drawing for the Evaluation Board is shown in Figure 5, and the layer detail is provided in Figure 6. The SKY65377-21 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. Package 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. The layout footprint drawing is shown in Figure 7. Package dimensions are shown in Figure 8, and tape and reel dimensions are provided in Figure 9. X 3.6 V N/C VCC_TX1 GND 21 N/C 17 ANT VDD1 16 13 X 12 GND 50 Ω Line Receive Output X 15 3.6 V 220 pF 1 μF 14 204030-003 X X 11 N/C GND N/C 18 GND RX 10 Transmit Input 19 VPC 9 50 Ω Line 20 5 GND 1 μF 22 GND 8 Antenna GND N/C 7 1 nF 23 4 6 1 μF 24 TX GND Transmit Output Power Adjust 25 EN N/C X TR 26 VCC_TX2 3 GND Shutdown Mode Digital Input 27 GND 2 GND VCC_TX3 1 GND 28 Transmit/Receive Digital Input 220 pF Figure 3. SKY65377-21 Typical Application Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 204030A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 26, 2016 7 PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE 14 13 12 11 10 9 8 7 6 5 4 3 2 VCC_RX GND GND VCC_TX1_SENSE VCC_TX1 GND GND VCC_TX23 VCC_TX23_SENSE GND TR EN BYP VPC DCH1 Header 1 C28 10 μF C27 220 μF R8 DNI C12 10 μF C1 DNI C7 10 nF C2 4.7 nF C8 4.7 nF L3 0Ω L4 0Ω C24 DNI C11 1 μF Antenna 6 L5 0Ω J1 50 Ω Line 7 8 C19 DNI Antenna Switch Receive J2 C25 DNI N/C VCC_TX1 VCC_TX2 23 GND GND EN TX N/C GND VPC RX GND N/C ANT VDD1 GND C20 DNI 9 10 11 12 13 N/C C26 1 μF TR 24 N/C 5 25 GND 4 R9 0Ω 26 GND 3 GND GND 2 27 GND 28 1 C10 DNI VCC_TX3 C22 DNI R10 DNI C15 DNI C5 220 pF C23 DNI C21 DNI C16 DNI GND L2 0Ω C17 DNI C6 1 nF C9 4.7 nF N/C L1 0Ω C18 DNI R7 0Ω GND 22 21 Transmit Input 19 J4 50 Ω Line 18 Receive Output 17 16 C3 220 pF C4 10 nF 15 R5 0Ω 14 50 Ω Line J5 50 Ω Line 20 50 Ω Line J3 LNA and Bypass Switch Output Notes: Some component labels may be different from the corresponding component symbol shown here. Component values, however, are accurate as of the date of this data sheet. PCB Recommendations: Metal Layer 1 = RF traces + control lines. Core thickness between top RF layer and ground plane is critical. Metal Layer 2 = Solid ground plane. No traces routing. Metal Layer 3 and 4 = Control lines + VCC traces (no VCC plane). Pour copper on each layer connected to the ground plane. Use VCC traces in a star distribution pattern. Always use 4 layers. Figure 4. SKY65377-21 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 May 26, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204030A 204030-004 PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE 204030-005 Figure 5. SKY65377-21 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 204030A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 26, 2016 9 PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE Layer 1: Top – Metal Layer 3: Ground Layer 2: Ground Layer 4: Solid Ground Plane 204030-006 Figure 6. SKY65377-21 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 May 26, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204030A PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE 0.5 0.4 0.05 0.05 0.15 Stencil aperture size for center ground pads should be 80% to 100% (by area) of the solder mask opening of the package. 6.3 0.8 0.9 Stencil and Metallization 8X 0.062 Package Outline Solder Mask Opening 6.3 16X 0.875 SMT Pad Detail Scale: 2X 6X This Rotation 6X Rotated 180° 6X Rotated 90° CW 6X Rotated 90° CCW Package Outline 8X 0.063 16X 0.875 Stencil Aperture Top View 6.4 3.875 0.9 0.8 0.05 0.05 0.15 0.85 0.75 Package Outline 6.4 3.875 Stencil and Metallization Package Outline Solder Mask Opening SMT Pad Detail Scale: 2X 1X This Rotation 1X Rotated 180° Solder Mask Opening Top View (6.3) Pin 28 (1.5) 0.25 Typ. Pin 1 The cross-hatched area represents the merger of the center ground pad +12 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. 0.9 0.8 Package Outline (10X 0.75 Pitch) (6.3) 0 4X 0.375 (1.2) 0.05 0.05 0.75 0.85 0.15 4X 1.125 4X 1.875 Stencil and Metallization 2X 2.750 Package Outline Solder Mask Opening Metallization Top View 2X 2.750 4X 1.813 4X 1.088 0 4X 0.363 (10X 0.725 Pitch) Thermal Via Array. ∅0.3 mm on 0.6 mm pitch. Additional vias in common ground pad will improve thermal and electrical performance. NOTE: thermal vias should be tented and filled with solder mask, 30-35 μm Cu plating recommended. SMT Pad Detail Scale: 2X 1X This Rotation 1X Rotated 180° All measurements are in millimeters 204030-007 Figure 7. SKY65377-21 PCB Footprint Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 204030A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 26, 2016 11 4X 1.813 4X 1.088 4X 0.363 C 8X 0.5 Pin 1 Indicator 16X 2.9 B 6 8X 1.5 PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE Pin 28 Pin 1 Pin 1 Indicator See Detail E 28X SMT Pad 0.1 A B C 8X 1.5 8X 0.5 6 0 4X 0.375 A 4X 1.125 4X 1.875 16X 2.9 A B C 0 See Detail D 0.9 ± 0.1 0.15 A B C 16X Solder Mask Opening 0.2 A B C 0.1 Top View Side View 0.55 ± 0.1 0.55 ± 0.1 0.55 ± 0.1 3X Solder Mask Edge 0.5 ± 0.05 Bottom View (0.1) Solder Mask Edges (0.1) (0.1) Solder Mask Edges 0.4 ± 0.05 0.5 ± 0.1 0.5 ± 0.1 3X Metal Pad Edge (0.1) Metal Pad Edges (0.1) Metal Pad Edges Detail A Detail B Detail C Pad Scale: 2X 6X This Rotation 6X Rotated 180° 6X Rotated 90° CW 6X Rotated 90° CCW Pad Scale: 2X 1X This Rotation 1X Rotated 180° Pad Scale: 2X 1X This Rotation 1X Rotated 180° 0.2 X 0.2 0.875 4X Solder Mask Edges 5X Solder Mask Edges 0.875 0.875 0.875 15X Detail D Detail E Scale: 2X Scale: 2X Notes: 1. All measurements are in millimeters. 2. Dimensions and tolerances according to ASME Y14.5M-1994. Figure 8. SKY65377-21 Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 May 26, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204030A 204030-008 PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE ∅1.50 ± 0.10 0.25 ± 0.02 (T) 4.00 ± 0.10 2.00 ± 0.10 1.75 ± 0.10 6.35 ± 0.10 (Bo) A A B 1.30 ± 0.10 (Ko) 12.00 ± 0.20 B 5.50 ± 0.10 Pin 1 Indicator ∅1.55 ± 0.05 8.00 ± 0.10 Section B 6.35 ± 0.10 (Ao) Notes: 1. 2. 3. 4. 5. Carrier tape: black conductive polycarbonate or polystyrene. Cover tape material: transparent conductive PSA. Cover tape size: 9.3 mm width. All dimensions are in millimeters. ESD-surface resistivity is ≤1 x 1010 Ohms/square per EIA, JEDEC TNR Specification. Section A 204030-009 Figure 9. SKY65377-21 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 204030A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 26, 2016 13 PRELIMINARY DATA SHEET • SKY65377-21: T/R FRONT-END MODULE Ordering Information Model Name SKY65377-21: T/R Front-End Module Manufacturing Part Number SKY65377-21 Evaluation Board Part Number SKY65377-21-EK1 Copyright © 2016 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 and the Skyworks symbol 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 14 May 26, 2016 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204030A