RF1146 BROADBAND LOW POWER SP4T SWITCH Package Style: QFN, 16-pin, 3mmx3mm RF1146 RF1 Features Low Frequency - 2.5GHz Operation Very Low Insertion Loss: Cell Band 0.35dB PCS Band 0.45dB High Isolation: Cell Band 29dB PCS Band 22dB Compatible With Low Voltage Logic: (VHIGH =1.8V) Excellent Linearity Performance (IIP2): Cell Band 106dBm PCS Band 110dBm Lowest BOM Cost and Small Solution Size: No DC Blocking Capacitors Required on the RF Paths Applications Cellular Handset Applications Cellular Infrastructure Applications RF2 ANT RF3 RF4 Charge Pump/ Decoder VDD V2 V1 Functional Block Diagram Product Description The RF1146 is a single-pole four-throw (SP4T) switch designed for general purpose switching applications which require very low insertion loss and low power handling capability. The RF1146 is ideally suited for battery operated applications requiring high performance switching with very low DC power consumption. The RF1146 features very low insertion loss with excellent linearity performance down to 1.8V control voltage. Additionally, RF1146 includes integrated decoding logic, allowing just two control lines needed for switch control. The RF1146 is packaged in a very compact 3mmx3mmx0.6mm, 16-pin, leadless QFN package. Ordering Information RF1146 RF1146PCBA-410 Broadband Low Power SP4T Switch Fully Assembled Evaluation Board Optimum Technology Matching(R) Applied GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT GaAs pHEMT Si CMOS Si BJT GaN HEMT RF MEMS LDMOS RF MICRO DEVICES(R), RFMD(R), Optimum Technology Matching(R), Enabling Wireless ConnectivityTM, PowerStar(R), POLARISTM TOTAL RADIOTM and UltimateBlueTM are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. (c)2006, RF Micro Devices, Inc. DS091023 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 1 of 10 RF1146 Absolute Maximum Ratings Parameter Rating Unit VDD, V1, V2 6.0 V Maximum Input Power (DC to 2.5GHz, 2.5V Control) 31 dBm Caution! ESD sensitive device. Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. Operating Temperature -30 to +85 C RoHS status based on EUDirective2002/95/EC (at time of this document revision). Storage Temperature -65 to +100 C The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. Parameter Min. Specification Typ. Max. Unit Operating Characteristics Condition Active Mode:VHIGH >1.8V,VLOW <0.4V; VDD =2.75V; Temp=25C; PIN =26dBm unless otherwise specified. Insertion Loss RF1-ANT, RF2-ANT, RF3-ANT, RF4-ANT 0.35 0.50 dB 824MHz to 960MHz 0.35 0.60 dB 1574MHz to 1577MHz 0.45 0.65 dB 0.55 0.70 1850MHz to 1990MHz 2170MHz to 2500MHz Isolation RF1-ANT, RF2-ANT, RF3-ANT, RF4-ANT 18 29 dB 824MHz to 960MHz 22 24 dB 1574MHz to 1577MHz 20 22 dB 1850MHz to 1990MHz 17 20 dB 2170MHz to 2500MHz dB 600MHz to 2500MHz, All RF ports in Insertion Loss state. Return Loss RF1-ANT, RF2-ANT, RF3-ANT, RF4-ANT 19 Harmonics Second Harmonic (2f0) 70 86 dBc f=880MHz, PIN =26dBm 70 88 dBc f=1880MHz, PIN =26dBm 70 81 dBc f=880MHz, PIN =26dBm 70 79 dBc f=1880MHz, PIN =26dBm RF1-ANT, RF2-ANT, RF3-ANT, RF4-ANT (Cell) 102 106 dBm Tone 1: 824MHz @ 16dBm, Tone 2: 1693MHz @ -20dBm, Receive Freq: 869MHz RF1-ANT, RF2-ANT, RF3-ANT, RF4-ANT (AWS) 104 108 dBm Tone 1: 1710MHz @ 16dBm, Tone 2: 3820MHz @ -20dBm, Receive Freq: 2110MHz RF1-ANT, RF2-ANT, RF3-ANT, RF4-ANT (PCS) 106 110 dBm Tone 1: 1850MHz @ 16dBm, Tone 2: 3780MHz @ -20dBm, Receive Freq: 1930MHz RF1-ANT, RF2-ANT, RF3-ANT, RF4-ANT (Cell) 65 68 dBc VSWR=2:1; Temp=15C, 25C, 60C; Jammer Freq=881.5MHz RF1-ANT, RF2-ANT, RF3-ANT, RF4-ANT (PCS) 65 68 dBc VSWR=2:1; Temp=15C, 25C, 60C; Jammer Freq=1960MHz 28 dBm f=900MHz 28 dBm f=1800MHz Third Harmonic (3f0) IIP2 Triple Beat Ration (TBR) 0.1dB Compression (P0.1dB) 2 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS091023 RF1146 Specification Typ. Max. 0.55 1.5 us 50% control to 10%/90% 2.50 2.75 3.30 V Continuously VHIGH 1.3 1.8 2.9 V VLOW 0 0.4 V 1 uA Parameter Min. Unit Condition Switching Speed Supply and Control Signal Characteristics Switch Supply Voltage (VDD) Control Voltage Control Current DS091023 PIN =16dBm 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3 of 10 RF1146 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PKG BASE 4 of 10 Function GND VDD V2 V1 GND RF GND RF3 GND GND ANT GND RF1 GND RF2 NC GND Description Ground Supply Control Signal 2 Control Signal 1 Ground RF Output 4 Ground RF Output 3 Ground Ground RF input. Connected to antenna Ground RF Output 1 Ground RF Output 2 Can be left floating or grounded Ground 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS091023 RF1146 GND 1 VDD 2 NC RF2 GND RF1 Pin Out 16 15 14 13 12 GND 11 ANT Top View 4 9 5 6 7 8 RF3 V1 GND 10 GND RF4 3 GND V2 GND Package Drawing DS091023 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 5 of 10 RF1146 General Information Control Logic The switch is operable in four states (see Truth table, below). The switch is designed for two modes: Active and Stand-by. These modes are controlled by the VDD signal. When VDD is high, the switch is active. Control Logic Mode V1 V2 S1 S2 S3 S4 ANT-RF1 Low Low ON OFF OFF OFF ANT-RF2 High Low OFF ON OFF OFF ANT-RF3 Low High OFF OFF ON OFF ANT-RF4 High High OFF OFF OFF ON Electrical Test Methods The electrical parameters for the switch were measured on test Evaluation Board provided by the switch supplier. The test Evaluation Board includes means for decoupling RF signals from control signal port (shunt capacitor at control signal ports). All measurements are done with calibration plane at switch pins. The effect of test board losses and phase delay has been removed from the results. 6 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS091023 RF1146 Application Schematic C2 C2 100 pF C1 VDD C3 100 pF J1 RF4 J2 RF3 50 strip 10 50 strip C4 10 nF 8 7 6 12 50 strip 3 1 50 strip 2 4 17 9 16 11 50 strip 15 13 J5 RF2 J4 RF1 14 C1 DNI L1 DNI J3 Application Diagram and Guidelines The decoupling capacitors are optional and, if necessary, may be used for noise reduction. Decoupling capacitors on the control pins protect the control circuitry from possible RF leakage. DC Blocking capacitors are not needed on the RF paths as there is no DC on the RF paths, however care should be taken to ensure that DC is not injected into the switch from external circuitry. An ESD filter is needed to protect the switch from antenna ESD events. The filter is formed by LESD inductor and CESD capacitor. The switch has a supply input to feed the built-in logic decoding. *LESD value will depend on the level of ESD protection and the loss acceptable in a given application. DS091023 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 7 of 10 RF1146 Evaluation Board Layout Board Thickness 0.0658", Board Material FR-4 Component Layer Topside RF Layer Inner Layer 2 8 of 10 Inner Layer 1 Ground Plane Layer 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS091023 RF1146 Typical Performance Data on Evaluation Board Fixture losses have been de-embedded (Temp=25C, VDD =2.75V, VCONTROL High=1.8V, VCONTROL Low=0V) Insertion Loss (Temp = 25C, VDD=2.75V) Return Loss (Temp = 25C, VDD=2.75V) 0.0 0.0 -0.3 -10.0 Insertion Loss (dB) -0.5 -20.0 Return Loss (dB) -0.8 -30.0 -1.0 RF1146 E3.1 Average Insertion Loss (Temp = 25C, Vdd=2.6V) -1.3 -1.5 400 600 RF1136 E2.1 Average Ant Port Return Loss (Temp = 25C, Vdd=2.6V) -40.0 -50.0 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 Frequency (MHz) Frequency (MHz) Antenna to Port Isolation (Temp = 25C, VDD=2.75V) Harmonics (Temp=25C, VDD=2.75v, Frequency=880MHz) 0.0 -60.0 -10.0 -70.0 -20.0 -80.0 Isolation (dB) Harmonic Level (dBc) -30.0 -90.0 RF1136 Average AntPort Isolation -40.0 -100.0 3Fo -50.0 400 600 2Fo -110.0 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 17 Frequency (MHz) 18 19 20 21 22 23 24 25 26 27 Input Power (dBm) Output Power versus Input Power (Temperature=25C, Frequency=1880MHz, VDD=2.75v) 28.0 26.0 Output Power POUT 24.0 (dBm) 22.0 20.0 18.0 Minimum of Pout 16.0 17 18 19 20 21 22 23 24 25 26 27 Input Power Pin (dBm) DS091023 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 9 of 10 RF1146 10 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 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