RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH Package: LGA, 32-pin, 8mm x 8mm x 1.2mm Features Integrated LNA, PA and Transfer Switch Small From Factor 8.0mm x 8.0mm x 1.2mm 50Ω Inputs and Outputs Low Insertion Loss, High Isolation Transfer Switch 31.5dBm PA Output Power Low PA Harmonic Content Applications 868MHz/900MHz ISM Band Application Single Chip RF Front End Module Portable Battery Powered Equipment Wireless Automatic Metering Applications Functional Block Diagram Product Description The RF3858 is a single-chip front-end module (FEM) for applications in the 868MHz/900MHz Band. The RF3858 addresses the need for aggressive size reduction for typical portable equipment RF front-end design and greatly reduces the number of components outside of the core chipset thus minimizing the footprint and assembly cost of the overall solution. The RF 3858 contains an integrated 1 Watt PA, TX/RX transfer switch, LNA with bypass mode, and matching components. The RF3858 is packaged in a 32-pin, 8.0mm x 8.0mm x 1.2mm over molded laminated package with backside ground which greatly minimizes next level board space and allow for simplified integration . Optimum Technology Matching® Applied GaAs HBT SiGe BiCMOS GaAs pHEMT GaN HEM GaAs MESFET Si BiCMOS Si CMOS RF MEMS InGaP HBT SiGe HBT Si BJT LDMOS RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 1 of 11 RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH Absolute Maximum Ratings Parameter Rating Unit Overall DC Supply Voltage +5.0 V Operating Ambient Temperature -40 to +85 °C Storage Temperature -40 to +150 °C Low Noise Amplifier DC Supply Current 32 mA Input RF Power 5 dBm 1200 mA 10 dBm 33 dBm Power Amplifier DC Supply Current Input RF Power Transmit/Receive Switch Input RF Power Parameter Min. Specification Typ. 868 902 to 928 17 21 1.3 -1 23.5 1.5 -8 -8 -5 -6 15 1 dB dB dBm dBm dB dB mA mA -70 dBc 3 dB dBm mA Max. Unit Condition Low Noise Amplifier Frequency Range MHz High Gain Mode Gain Noise Figure Input IP3 Input Gain Compression Input Return Loss Output Return Loss LNA Operating Current LNA Enable Stability, Input VSWR Output Spurious -4.5 -15 10:1 LNA VREF= LNA VCC= 3.3V All phase angles Low Gain Mode Gain Input IP3 Current Drain Over LNA VCC, LNA VREF, Temperature, and Frequency LNA VREF= LNA VCC= 3.3V TAMB= +25°C, LNA VCC= 3.3V Gain Select>1.8V -7 15.5 -6 17 1.5 TAMB= +25°C, LNA VCC= 3.3V Power Amplifier Frequency Range PA VCC1= PA VCC2= PA BIAS PA VREG POUT Gain 868 3.0 2.75 27 902 to 928 4.0 2.85 31.5 30 Output Harmonic Levels 2nd 3rd through 10th Efficiency Input Return Loss Output Spurious Stability Current Operating Bias Only IREG Leakage Current 2.95 MHz V V dBm dB -40 -70 dBc dBc -70 % dB dBc 40 9 10:1 7:1 0.7 2 0.1 Saturated power output PA VCC1= PA VCC2= PA BIAS= 4V, over temperature and frequency PA VCC1= PA VCC2= PA BIAS= 4V, over temperature and frequency 31.5dBm output, PA VCC1= PA VCC2= PA BIAS, 2.85V VREG All phase angles All phase angles, -40°C 1.0 200 5 0.9 A mA mA µA 31.5dBm output, PA VCC1= PA VCC2= PA BIAS, 2.85V VREG Idle current, no RF at input Over VCC, Frequency, and Temperature RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 2 of 11 RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH Transmit/receive Switch Frequency Range Insertion Loss TX to ANT1 or ANT2 RX to ANT1 or ANT2 Any Path (1800MHz to 1860MHz) Any Path (2700MHz to 2790MHz) Any Path (>3600MHz) Isolation (All Paths) Input IP3 Thermal Resistance Output Harmonic Levels 2nd 3rd through 10th Input 1dB Gain Compression Return Loss (All Ports) Switch Control Logic HIGH Switch Control Logic LOW Switch Control Current 868 902 to 928 0.85 .95 MHz 1.4 1.4 2 2 15 18 55 47.8 -60 -80 30 18 2.6 0 Transition Time 32 3.5 0.2 5 40 2 dB dB dB dB dB dB dBm °C/W dBc dBc dBm dB V V µA µA µs 4V VCC, 2.85V VREG, 31dBm POUT, TREF= 85°C Active ports only VTX2, VRX1, and VRX2 VTX1 Settle to 0.25dB of final value Connected Path RX SW to ANT1 RX SW to ANT2 TX SW to ANT1 TX SW to ANT2 VRX1 VRX2 VTX1 VTX2 High Low Low Low Low High Low Low Low Low High Low Low Low Low High *Switch Control Logic High=Min 2.6V to Max 3.5V *Switch Control Logic Low-Min 0.0V to Max 0.2V RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 3 of 11 RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Pkg Base Function LNA IN LNA VREF LNA SELECT RX SWITCH INPUT TX SWITCH INPUT GND PA VCC2 GND GND PA OUT GND GND GND PA BIAS PA VREG GND GND PA IN GND PA VCC1 VTX2 VTX1 ANT2 ANT1 VRX1 VRX2 LNA VCC GND LNA OUT GND GND GND GND Description RF Input to the low noise amplifier, 50Ω nominal impedance. Voltage to set the bias level to the LNA, 3.0V nominal, can be used to shut the LNA off or to adjust the quiescent current. A logic low selects the high gain mode of the LNA, logic high selects the low gain mode. RF port from the Switch going to the LNA input, 50Ω nominal impedance. RF port from the Switch going to the PA input, 50Ω nominal impedance. Ground. Voltage supply for the Power Amplifier, nominal voltage is 3.6V. Ground. Ground. RF output from the Power Amplifier, 50Ω nominal impedance. Ground. Ground. Ground. Voltage supply for the Power Amplifier bias network, nominal voltage is 3.6V. Voltage to set the bias level of the Power Amplifier, nominal voltage is 2.85V. Ground. Ground. RF Input to the Power Amplifier, 50Ω nominal impedance. Ground. Voltage supply for the Power Amplifier, nominal voltage is 3.6V Logic input to the Switch, see Logic Table below. Logic input to the Switch, see Logic Table below. RF port from the Switch going to Antenna 1, 50Ω nominal impedance. RF port from the Switch going to Antenna 2, 50Ω nominal impedance. Logic input to the Switch, see Logic Table below. Logic input to the Switch, see Logic Table below. LNA Collector Voltage, nominal voltage is 3.0V. Ground. RF Output from the low noise amplifier, 50Ω nominal impedance. Ground. Ground. Ground. The central metal base of package provides DC and RF GND as well as heat sink for the amplifier. RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 4 of 11 RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH Package Drawing All units in µm. Pin A= 510 x 475 Pin B= 510 x 510 Pin C= 475 x 510 RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 5 of 11 RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH PCB Patterns Thermal vias for center slug “G” should be incorporated into the PCB design. The number and size of thermal vias will depend on the application. Example of the number and size of vias can be found on the RFMD Evaluation board layout. RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 6 of 11 RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH Pin Out RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 7 of 11 RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH 50 Ohm ustrip LNA Vcc LNA Out Application Schematic .1uF C1 68pF C2 LNA In 50 Ohm ustrip 1 32 31 LNA Vref 2 Input Match 30 29 28 27 Output Match LNA 26 VRX2 25 VRX1 Ant1 LNA Sel 3 24 50 Ohm ustrip 50 Ohm ustrip 4 23 50 Ohm ustrip 50 Ohm ustrip 5 RX Switch Ant2 RF Switch 22 VTX1 6 21 VTX2 7 20 TX Switch PA Vcc2 PA Vcc1 10uF C11 .1uF 68 pF C10 C9 .1uF C3 8 10uF C4 19 Output Match Input Match PA 9 18 50 Ohm ustrip PA In 50 Ohm ustrip 10 11 12 13 14 15 16 17 PA Out C5 C7 68 pF 68 pF .1uF .1uF C6 PA Vreg PA Bias C8 RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 8 of 11 RF F3858 3.0 V TO 4..2V, ISM BAN ND TRANSM MIT/RECEIVE MODULE W WITH DIVERS SITY TRANSF FER SWITCH RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enab bling Wireless ConnectivityTM, PowerStar®, POLARISTM TOTAL RADIOTM and UltimateBlueTM are trademarks of RFMD, LLLC. BLUETOOTH is a trademark ownedd by Bluetooth SIG, Inc., U.S.A. and licen nsed for use by RFMD. All other trade n names, trademarks and registered trademarks are the property of their respective owners. ©20009, RF Micro Devices, Inc. DS1304 424 762 28 Thorndike Road, Greensboro, G NC 274 409-9421 – For salees or technical Sup pport, contact RFMD D at (+1) 336-678-5 5570 or [email protected] 9 of 11 RF F3858 3.0 V TO 4..2V, ISM BAN ND TRANSM MIT/RECEIVE MODULE W WITH DIVERS SITY TRANSF FER SWITCH RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enab bling Wireless ConnectivityTM, PowerStar®, POLARISTM TOTAL RADIOTM and UltimateBlueTM are trademarks of RFMD, LLLC. BLUETOOTH is a trademark ownedd by Bluetooth SIG, Inc., U.S.A. and licen nsed for use by RFMD. All other trade n names, trademarks and registered trademarks are the property of their respective owners. ©20009, RF Micro Devices, Inc. DS1304 424 762 28 Thorndike Road, Greensboro, G NC 274 409-9421 – For salees or technical Sup pport, contact RFMD D at (+1) 336-678-5 5570 or [email protected] 10 of 11 RF3858 3.0 V TO 4.2V, ISM BAND TRANSMIT/RECEIVE MODULE WITH DIVERSITY TRANSFER SWITCH Ordering Information Ordering Code RF3858 RF3858SR RF3858TR13 RF3858PCK-410 Description Standard 25 piece bag Standard 100 piece reel Standard 25 piece reel Fully Assembled Evaluation board and 5 loose sample pieces RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, 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. ©2009, RF Micro Devices, Inc. DS130424 7628 Thorndike Road, Greensboro, NC 27409-9421 – For sales or technical Support, contact RFMD at (+1) 336-678-5570 or [email protected] 11 of 11