RFFM5541 4.9GHz to 5.85GHz Switch and LNA Front End Solution The RFFM5541 is designed specifically for high-performance WiFi applications in the 5GHz ISM band. This module integrates the LNA with bypass and a SPDT switch of a Front End solution. The integrated input and output match reduces the number of external components keeping cost down and utilizing minimum layout area for implementation. The RFFM5541 is provided in a 2mm x 2mm x 0.5mm, 12-pin QFN package. This LNA + Switch front-end solution meets or exceeds the specification requirements of IEEE 802.11a RF systems. RFFM5541 Package: QFN, 12-pin, 2.0mm x 2.0mm x 0.5mm Features ■ TX Switch High Linearity: Pin>21dBm with <1% EVM MCS9 ■ Single Supply Voltage 2.7V to 4.8V ■ Integrated 5GHz LNA With Bypass and SPDT Applications Mobile Devices ■ Gaming ■ General Purpose Switch and LNA Solution for 4.9GHz to 5.85GHz Frequency Range GND Consumer Electronics TX_IN IEEE802.11a WiFi Applications C_TX/RX GND ■ ■ 12 11 10 ■ 9 1 NC ANT 2 8 RX_Out GND 3 7 NC 5 LNA_EN GND 6 VDD 4 Functional Block Diagram Ordering Information RFFM5541SB Standard 5-piece bag RFFM5541SQ Standard 25-piece bag RFFM5541SR Standard 100-piece reel RFFM5541TR Standard 2500-piece reel RFFM5541PCK-410 Fully assembled evaluation board w/ 5-piece bag RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. ® DS131219 ® RF MICRO DEVICES and RFMD 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. ©2013, RF Micro Devices, Inc. 1 of 7 RFFM5541 PROPOSED Absolute Maximum Ratings Parameter Rating Unit 5.5 V Operating Temperature Range -40 to +85 °C Storage Temperature -40 to +150 °C ESD - Human Body Model (HBM) 500 V ESD – Charge Device Model (CDM) 1000 V 5 dBm DC Supply Voltage LNA Input Power (No Damage) Moisture Sensitivity Caution! ESD sensitive device. RFMD Green: RoHS status based on EU Directive 2011/65/EU (at time of this document revision), halogen free per IEC 61249-2-21, < 1000ppm each of antimony trioxide in polymeric materials and red phosphorus as a flame retardant, and <2% antimony in solder. MSL2 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. Nominal Operating Parameters Specification Parameter Unit Min Typ Condition Max VDD = 2.7V to 4.2V, LNA_EN = 2.5V to VDD - 0.2V, Temp = -15°C to +75°C, Freq = 4.9GHz to 5.85GHz, unless otherwise noted. Compliance Receive Parameters Frequency 4.90 5.85 GHz Vdd (LNA Voltage Supply) 2.7 3.6 4.2 V ON state 2.5 3.3 Vdd - 0.2 V OFF state 0 0.2 V LNA EN LNA_EN OFF turns bypass switch ON Switch Control Logic Low High 2.5 0 0.2 V 3.3 Vdd - 0.2 V 17 22 mA LNA in “ON” State 25 mA Extended temp range, -40°C to +85°C 10 uA LNA in “OFF” State 15 uA Extended temp range, -40°C to +85°C 5 uA 10 uA Extended temp range, -40°C to +85°C 20 dB Includes temp range -40°C to +85°C -9 -7 dB 2.4 3.0 dB VDD > 3.0V, including switch; Temp=25°C 3.5 dB Extended temp range -40°C to +85°C; VDD > 3.0V, including switch LNA Current LNA Vdd Vdd Leakage Current 5 LNA_EN Current Gain WiFi RX 11 Bypass Mode -13 Noise Figure 16 RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS131219 The information in this publication is believed to be accurate. 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. 2 of 7 RFFM5541 PROPOSED Specification Parameter Unit Min Typ Condition Max Receive Parameters (continued) Passband Ripple WiFi RX Mode WiFi RX Bypass Mode -0.9 +0.9 dB 4.9GHz to 5.1GHz -0.9 +0.9 dB Per U-NII band or 100MHz -0.9 +0.9 dB WiFi RX Port Return Loss 8 dB IP1dB -9 dBm -10 dBm 3 dBm 0 dBm IIP3 4.90 Insertion Loss 1 Passband Ripple -0.2 Input P1dB Extended temp range -40°C to +85°C Control voltage = 2.5V to 4.8V, Temp=-15°C to +75°C, unless otherwise noted Transmit Switch Parameters Frequency Extended temp range -40°C to +85°C 5.85 GHz 1.8 dB Includes temp range -40°C to +85°C dB Over all conditions; Per U-NII band or 100MHz +0.2 29 31 dBm Switch ports only, over all conditions; CW signal 27 dBm Extended temp range -40°C to +85°C; CW signal Input Power 21 dBm System EVM=0.5% assumed for the incoming signal; 21dBm at the input with 1% composite EVM at the output. Input Return Loss 9.6 12 dB Output Return Loss 8.5 12 dB Port Impedance Tuning 50 Isolation TX to RX 20 Isolation RX to TX 20 Switch Control Current 35 Switch Control Speed 75 Over all conditions W All RF ports tuned for 50Ω system dB TX DC mode, path ANT to RX, over all conditions dB WiFi RX Bypass Mode, path ANT-TX, over all conditions 50 uA Per control line, over all conditions 100 uA Extended temp range -40°C to +85°C 150 nsec Over all conditions Switch Logic Truth Table Mode C_TX/RX LNA_EN RX Gain L H RX Bypass L L TX H L RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS131219 The information in this publication is believed to be accurate. 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. 3 of 7 RFFM5541 PROPOSED Applications Schematic TX_IN C_TX/RX 100 pF 12 11 10 1 9 2 8 3 7 100 pF ANT 4 5 RX_OUT 6 0.1uF LNA_EN VDD RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS131219 The information in this publication is believed to be accurate. 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. 4 of 7 RFFM5541 PROPOSED Pin Out C_TX/RX TX_IN GND 12 11 10 GND 1 9 NC ANT 2 8 RX_Out GND 3 7 NC 4 5 6 LNA_EN GND VDD Package Outline and Branding Drawing (Dimensions in millimeters) RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS131219 The information in this publication is believed to be accurate. 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. 5 of 7 RFFM5541 PROPOSED PCB Pattern RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS131219 The information in this publication is believed to be accurate. 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. 6 of 7 RFFM5541 PROPOSED Pin Names and Descriptions Pin Name Description 1 GND Ground. 2 ANT This is the common port (antenna). Matched to 50Ω. External DC blocking capacitor required. 3 GND Ground. 4 LNA_EN 5 GND Ground. 6 VDD Supply voltage to the LNA. 7 NC 8 RX_OUT 9 NC 10 GND Ground. 11 TX_IN Transmit port for 802.11a/n band. Matched to 50Ω. External DC blocking capacitor required. 12 C_TX/RX LNA Enable/Bypass Enable control pin. See switch truth table for proper settings. No Board Connection Allowed. Receive port for 802.11a/n band. RX output includes integrated DC-block and 50Ω match. No Board Connection Allowed. Transmit and receive mode control pin. See switch truth table for proper settings. RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS131219 The information in this publication is believed to be accurate. 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. 7 of 7