RF6535 3.0V TO 4.2V, 2.4GHz FRONT END MODULE Features TX Output Power: 23dBm TX Gain: 28dB RX Gain: 11.5dB RX NF: 3dB Integrated LNA TXCT GND VCC_BAIS VCC NC Package Style: QFN, 20-Pin, 3.5mmx3.5mmx0.5mm 15 14 13 12 11 TXN 16 10 VCC TXP 17 9 GND RXCT 18 8 ANT1 RXBN 19 7 GND RXBP 20 6 ANT2 ANT 3 4 5 NC 2 ANT_SEL 1 VCC ZigBee(R) 802.15.4 Based Systems for Remote Monitoring and Control WiFi 802.11b/g 2.4GHz ISM band applications Smart Meters for Energy Management SDN CTL Applications Functional Block Diagram Product Description The RF6535 integrates a complete solution in a single Front End Module (FEM) for WiFi and ZigBee(R) applications in the 2.4GHz to 2.5GHz band. This FEM integrates the PA plus harmonic filter in the transmit path and an LNA in the receive side. It also integrates a diversity switch and provides balanced input and output signals for both the TX and RX paths respectively. The RF6535 FEM is ideal for ZigBee(R) systems operating with a minimum output power of 20dBm and high efficiency requirements. On the receive path, the LNA provides 11.5dB of typical gain with only 8mA of current and excellent NF down to 3dB. This FEM meets or exceeds the system requirements for WiFi and ZigBee(R) applications operating in the 2.4GHz to 2.5GHz band. The device is provided in a 3.5mm x 3.5mm x 0.5mm, 20-pin QFN package. Ordering Information RF6535SQ RF6535SR RF6535TR13 RF6535PCK-410 Standard 25 piece bag Standard 100 piece reel Standard 2500 piece reel Fully assembled evaluation board and 5 loose pieces Optimum Technology Matching(R) Applied GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT GaAs pHEMT GaN HEMT Si CMOS Si BJT 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. DS111110 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 8 RF6535 Absolute Maximum Ratings Parameter Rating Unit 5 V Operating Case Temperature -40 to +85 C Storage Temperature -40 to +150 C ESD Human Body Model RF Pins 500 V ESD Human Body Model All Other Pins 500 V 500 V DC Supply Voltage ESD Charge Device Model All Pins Moisture Sensitivity Level 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. RoHS status based on EUDirective2002/95/EC (at time of this document revision). 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. MSL 2 Maximum Input Power to PA +5 dBm Maximum Input Power to LNA +10 dBm Parameter Min. Specification Typ. Max. Unit Condition Specifications must be met across supply voltage, control voltage, and temperature ranges unless otherwise noted. Typical conditions: T=25C, VCC =3.3V, CTL=High Overall Operating Frequency Range 2400 Operating Voltage (VCC) Operating Voltage (VCC_BIAS) 2483 MHz 3.0 3.3 4.2 V 3 3.3 4.2 V 45 60 uA 2483 MHz Leakage Current VCC =3.3V, RF=OFF, CTL=Low Transmit Parameters Frequency 2400 Input Return Loss 9 Balanced Input Impedance 200 Amplitude Imbalance -1 1 dB Phase Imbalance -15 15 deg Output Return Loss 10 0.8 dB Gain 24 Gain Flatness -0.8 Rated Output Power 28 dB 23 22 21 At rated power dBm VCC =3.3, T = 25C dBm VCC greater than or equal to 3.3V; Temperature less than or equal to 70C dBm mA All conditions Supply current 240 260 Supply current 230 250 mA PO =22dBm 802.15.4OQPSK Supply current 220 240 mA PO=21dBm, All conditions Thermal Resistance 55 2nd through 5th harmonic level -45 -42 dBm/MHz 1 10 uS VSWR Stability and load mismatch susceptibility 4:1 VSWR No damage 8:1 Gain settling time 2 of 8 C/W PO =23dBm 802.15.4OQPSK VCC = 3.6V, POUT = 23dBm, TREF = 85C Measured using standard 802.15.4OQPSK modulation signal 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS111110 RF6535 Parameter Min. Specification Typ. Max. Unit Condition Transmit Parameters, cont. Current sourced through TXCT pin Voltage drop from TXCT pin to TXP/TXN 18.0 mA 0.1 V Receive Parameters Frequency 2400 2483 MHz 11.5 13.5 dB Noise Figure 3 4 dB From antenna to RX pin (entire RX path). Current 8 11 mA LNA + Switches Gain 9.5 Input IP3 7 Gain flatness -0.5 Input return loss 6 Output return loss dBm 0.5 8.5 dB dB 7.5 Balanced Output Impedance From antenna to RX pin (entire RX path). dB 200 Amplitude imbalance -1 1 dB Phase imbalance -15 15 deg 1 mA 0.1 V Current sourced through RXCT pin Voltage drop from RXCT pin to RXP/RXN Antenna Switch RF-to-Control Isolation 50 RF-to-ANT Isolation 17 RF-to-RF Isolation 18 dB Measured at any control pin while in TX or RX mode. 20 dB Measured from Antenna to RX port while in Transmit mode. Measured from Antenna to TX port while in Receive mode. 20 dB Measured from TX port to RX port while in receive or transmit modes. uS ANT1 or ANT2 path, TX or RX mode Antenna Select Switch Speed 1 Control Logic Control Logic = HIGH =VCC -0.3 Control Logic = HIGH 1.7 =VCC V SDN and ANT_SEL 1.8 3.6 V CTL Control Logic = LOW 0 0.2 V All Logic I/O's Control Current. Logic HIGH 10 A All Logic I/O's Control Current. Logic LOW 0.1 A All Logic I/O's DS111110 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 8 RF6535 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 4 of 8 Function SDN VCC ANT_SEL CTL NC ANT2 GND ANT1 GND VCC NC VCC VCC_BIAS GND TXCT TXN TXP RXCT RXBN RXBP Description Enable/Shutdown pin for entire module. See logic table for operation. Voltage Supply. An external 1uF capacitor might be needed for low frequency decoupling. Control pin for Antenna select. See logic table for operation. Enable voltage pin for both PA/Transmit Switch and LNA/Receive Switch. See logic table for operation. No connect pin. Must be left floating. This is the common port (antenna). It is matched to 50 and DC-block is provided internally. Ground. This is the common port (antenna). It is matched to 50 and DC-block is provided internally Ground. Voltage Supply. An external 1uF capacitor might be needed for low frequency decoupling No connect pin. Must be left floating. Voltage Supply. An external 1uF capacitor might be needed for low frequency decoupling Voltage Supply. An external 1 uF capacitor might be needed for low frequency decoupling Ground. Center tap for pass-thru DC voltage to TXN and TXP pins that connect to the TXVR SOIC. 100 single ended, 200 differential. 100 single ended, 200 differential. Center tap for pass-thru DC voltage to RXBN and RXBP pins that connect to the TXVR SOIC. 100 single ended, 200 differential. 100 single ended, 200 differential. 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS111110 RF6535 Package Drawing DS111110 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 8 RF6535 RF6535 Biasing Instructions TX Mode * With the RF source disabled, apply 3.3V to VCC with other controls set to 0V * Apply 3.0V to SDN and 1.8V to CTL * Apply 0V to ANT_SEL to select the ANT1 port, or 3.0V to select the ANT2 port * Vcc current should rise to 70mA to 80mA quiescent current * Enable the RF source; Vcc current should rise to a maximum of 200mA depending on output power RX Mode * With the RF source disabled, apply 3.3V to VCC with other controls set to 0V * Apply 3.0V to SDN, keeping CTL at 0V * Apply 0V to ANT_SEL to select the ANT1 port, or 3.0V to select the ANT2 port * Vcc current should rise to 7mA to 8mA * Enable the RF source; VCC current may increase a few mA depending on output power 6 of 8 Mode SDN Logic Table CTL TX-ANT1 3.0V 1.8V 0V TX_ANT2 3.0V 1.8V 3.0V RX-ANT1 3.0V 0 0V RX-ANT1 3.0V 0 3.0V All OFF 0 0 0 ANT_SEL 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS111110 RF6535 Evaluation Board Schematic VCC CT C5 0.1F L9 4.3nH C6 0.1F J1 TX 50 strip 1 2 3 BALUN 6 2450MHz 5 50- 200 4 15 100 strip 5 6 2450MHz 50- 200 2 1 100 strip 50 strip 12 9 U1 RF6535 7 20 6 2 3 4 J2 RX SDN L6 1.3nH L7 3.6nH L5 3.6nH 50 strip L2 3.6nH L4 3.6nH 50 strip 8 19 1 C3 0.9pF 11 10 18 100 strip 3 13 17 CT BALUN 14 16 100 strip 4 L8 1.8nH C4 1.0F ANT_SEL 5 J3 ANT1 J4 ANT2 L3 1.3nH C2 0.9pF L1 3.0nH C1 0.1F VCC DS111110 CTL 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 8 RF6535 PCB Design Requirements PCB Surface Finish The PCB surface finish used for RFMD's qualification process is electroless nickel, immersion gold. Typical thickness is 3inch to 8inch gold over 180inch nickel. PCB Land Pattern Recommendation PCB land patterns for RFMD components are based on IPC-7351 standards and RFMD empirical data. The pad pattern shown has been developed and tested for optimized assembly at RFMD. The PCB land pattern has been developed to accommodate lead and package tolerances. Since surface mount processes vary from company to company, careful process development is recommended. PCB Metal Land and Solder Mask Pattern Thermal vias for center slug "C" should be incorporated into the PCB design. The number and size of thermal vias will depend on the application, the power dissipation, and this electrical requirements. Example of the number and size of vias can be found on the RFMD evaluation board layout. 8 of 8 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS111110