DATA SHEET SKY65344-21: 2.4 GHz Transmit/Receive Front-End Module with Integrated Low-Noise Amplifier Applications Description • 2.4 GHz ISM band radios Skyworks SKY65344-21 is a high-efficiency Front-End Module (FEM) for ZigBee and other 2.4 GHz ISM band applications. The small, 6 x 6 mm Multi-Chip Module (MCM) contains a 2400 to 2500 MHz high-efficiency transmit path and a low-loss bidirectional path. The bidirectional path can be used to directly connect the antenna port to a directional RF port. • ZigBee® FEMs • IEEE 802.15.4 applications Features The transmit path consists of an harmonic filter and high efficiency Power Amplifier (PA) capable of providing +20 dBm of power at the antenna port. Also included is an internal balun to allow use of differential input signals. • Transmit output power > +20 dBm • Receive path NF < 2.2 dB • High efficiency PA The receive path contains a high isolation transmit/receive (T/R) switch, Low-Noise Amplifier (LNA), and balun for low-noise differential output. • Programmable transmit power levels • Configurable transmit/bidirectional paths • Internal switching and control circuits The device is mounted in a 20-pin, 6 x 6 mm MCM SurfaceMounted Technology (SMT) package, which allows for a highly manufacturable low-cost solution. • Internal RF match and bias circuits • Single DC supply = 3.3 V • Interfaces seamlessly with Ember EM250, EM260, and EM35x ZigBee transceivers • All RF ports are internally DC blocked A block diagram of the SKY65344-21 is shown in Figure 1. The device package and pinout for the 20-pin MCM are shown in Figure 2. • Small footprint, MCM (20-pin, 6 x 6 mm) SMT package (MSL3, 260 °C per JEDEC J-STD-020) Figure 1. SKY65344-21 Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201181F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 2, 2011 1 DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Figure 2. SKY65344-21 Pinout – 20-Pin MCM (Top View) Technical Description Shut Down and T/R Switch Mode Control Pin 8 (SDN) is used to enable the device while pin 20 (T_R) enables transmit or receive mode. The following control logic is used to configure the transmit, receive, or shut down mode of the SKY65344-21: SDN (Pin 8) T_R (Pin 20) Mode High High Transmit mode High Low Receive mode Low Low Shut Down mode thermal vias under the ground paddles for optimum thermal performance. The Evaluation Board layout can be used as a guide for RF ground and thermal layout. Electrical and Mechanical Specifications Signal pin assignments and functional pin descriptions are described in Table 1. The absolute maximum ratings of the SKY65344-21 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 SKY65344-21 are shown in Figures 3, 4, and 5. Bottom Center Paddle The bottom center paddles must be electrically grounded for proper RF performance. Customers should place adequate Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 May 2, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201181F DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Table 1. SKY65344-21 Signal Descriptions Pin # Description Pin # Name Description 1 BIAS1 Transmit port bypass voltage 11 GND Ground 2 TX_P Positive transmit input port 12 GND Ground 3 TX_N Negative transmit input port 13 ANT Antenna port 4 BIAS2 Receive port bypass voltage 14 GND Ground 5 RX_P Positive receive output port 15 GND Ground 6 RX_N Negative receive output port 16 GND Ground 7 GND Ground 17 TX_VCC Transmit DC supply, +3.3 V 8 SDN Shut down enable 18 GND Ground 9 RX_VCC Receive DC supply, +3.3 V 19 N/C No connection GND Ground 20 T_R Transmit/receive control 10 Note: Name The bottom ground pad must be connected to RF ground. Table 2. SKY65344-21 Absolute Maximum Ratings (Note 1) Parameter Supply voltage Symbol Minimum Maximum Units 1.8 4 V RX_VCC, TX_VCC Control voltage SDN, T_R Bypass voltage BIAS1, BIAS2 RF input power, antenna port PIN_ANT 3.6 V 4 V +10 dBm RF input power, transmit port PIN_TX +8 dBm Case operating temperature TC –40 +85 °C Storage temperature TST –55 +125 °C Junction temperature TJ +150 °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 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. SKY65344-21 Recommended Operating Conditions Parameter Symbol Minimum Typical 2400 Maximum Units Frequency range f 2500 MHz Supply voltage (TX_VCC, RX_VCC) VCC 2.7 3.3 3.6 V Shut down and T/R control voltage: Low High T_RL, SDNL T_RH, SDNH 1.62 0 1.80 0.1 3.60 V V Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201181F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 2, 2011 3 DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Table 4. SKY65344-21 Electrical Specifications (Note 1) (Vcc = 3.3 V, TC = 25 °C, PIN = +3 dBm, Unless Otherwise Noted) Parameter Symbol Frequency range f Return loss (Note 2) RL Transmit differential port (TX_P, TX_N) impedance (Note 2) Receive differential port (RX_P, RX_N) impedance (Note 2) Test Condition Min Typical 2400 All RF ports Max Units 2500 MHz 10 dB ZDTX 29 + j75 Ω ZDRX 68 + j38 Ω Input power range PIN +3 dBm Maximum output power (Note 2) PSAT +21.5 dBm Transmit output power POUT Operating current IOP_H Transmitter Section nd +19.5 +20.0 dBm 105 130 mA 2 harmonic Pn2 IEEE 802.15.4 OQPSK modulated –48 –43 dBm 3rd harmonic Pn3 IEEE 802.15.4 OQPSK modulated –49 –43 dBm Small signal gain (Note 2) GH PIN = –10 dBm 20 dB Spur (Note 2) VSWR up to 10:1 (all phase angles) No parasitic oscillation > –44 dBm – Ruggedness (Note 2) VSWR up to 10:1 (all phase angles) No module damage or permanent degradation – Receive Section Small signal gain G CW 7 10 Noise Figure NF 1 dB Input Compression Point (Note 2) IP1dB CW –11 dBm 3rd Order Input Intercept Point (Note 2) IIP3 Two CW tones, spaced 1 MHz apart @ PIN = –9 dBm –1 dBm Operating current ICC CW 7 10 mA Leakage current ILEAK No RF input, VCC = 3.3 V, SDN = 0 V, T_R = 0 V 4 10 μA 2.2 dB 3.0 Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2: Parameter is characterized under the conditions in this Table but is not production tested. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 May 2, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201181F dB DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Typical Performance Characteristics (VCC = 3.3 V, TC = 25 °C, PIN = +3 dBm, Unless Otherwise Noted) Figure 3. Output Power vs Input Power @ 2445 MHz Figure 4. Output Power vs Input Power Over Temperature @ 2445 MHz Figure 5. Output Power vs Supply Voltage @ 2445 MHz Evaluation Board Description Package and Handling Information The SKY65344-21 standalone Evaluation Board is used to test the performance of the SKY65344-21 FEM. The Evaluation Board schematic diagram is shown in Figure 6. An assembly drawing for the Evaluation Board is shown in Figure 7. 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. A reference design Evaluation Board is also available to test the SKY65344-21 with an Ember EM35x series transceiver (see Ordering Information on the last page of this Data Sheet). Package Dimensions The phone board layout footprint for the SKY65344-21 is shown in Figure 8. Package dimensions for the 20-pin MCM are shown in Figure 9, and tape and reel dimensions are provided in Figure 10. The SKY65344-21 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. 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. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201181F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 2, 2011 5 DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Figure 6. SKY65344-21 Standalone Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 May 2, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201181F DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Figure 7. SKY65344-21 Standalone Evaluation Board Assembly Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201181F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 2, 2011 7 DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Figure 8. SKY65344-21 Phone Board Layout Footprint Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 May 2, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201181F DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Figure 9. SKY65344-21 20-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201181F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 2, 2011 9 DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Figure 10. SKY65344-21 20-Pin MCM Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 May 2, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201181F DATA SHEET • SKY65344-21 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA Ordering Information Model Name SKY65344-21 T/R Front-End Module with LNA Manufacturing Part Number SKY65344-21 Evaluation Board Part Number TW17-D755 (Standalone Board) EM35X_SKY65344 (EM357 and SKY65344-21 Zigbee Reference Design) Copyright © 2009, 2010, 2011 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. 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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 201181F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 2, 2011 11