RFSA3413 RFSA3413 RFSA3413 5MHz to 6000MHz, Digital Step Attenuator VDD C1 C2 C4 C8 The RFMD’s RFSA3413 is a 4-bit digital step attenuator (DSA) that features high linearity over the entire 15dB gain control range with 1.0dB steps. The RFSA3413 uses parallel control interface. The RFSA3413 has a low insertion loss of 1.4dB at 2GHz. Patent pending circuit architecture provides overshoot-free transient switching performance. The RFSA3413 is available in a 3mm x 3mm QFN package. 16 15 14 13 1 12 N/C LOGIC CONTROL RFIN 2 11 RFOUT N/C 3 10 N/C N/C 4 9 N/C Features ■ 4-Bit, 15dB Range, 1.0dB Step ■ Patent Pending Circuit Architecture ■ Overshoot-free Transient Switching Performance ■ Frequency Range 5MHz to 6000MHz ■ High Linearity, IIP3 >55dBm ■ Parallel Control Interface ■ Fast Switching Speed, <120nsec Typical ■ Single Supply 3V to 5V Operation ■ 3V CMOS Logic Compatible ■ RF Pins Have No DC Voltage, Can be DC Grounded Externally Applications 5 6 7 8 ■ Point-to-Point N/C N/C 2G Through 4G Base Stations N/C ■ N/C 4-BIT DSA Package: QFN, 16-pin, 3.0mm x 3.0mm x 0.85mm ■ WiMax/WiFi ■ Test Equipment Functional Block Diagram Ordering Information RFSA3413SQ Sample bag with 25 pieces RFSA3413SR 7" Reel with 100 pieces RFSA3413TR7 7" Reel with 2500 pieces RFSA3413PCK-410 5MHz to 6000MHz PCBA with 5-piece sample 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]. ® DS150129 ® 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 14 RFSA3413 Absolute Maximum Ratings Parameter Rating Unit Supply Voltage (VDD) -0.5 to +6.0 V All Other DC and Logic Pins (Supply Voltage Must Be Applied Prior to Any Other Pin Voltages) -0.5 to VDD V Maximum Input Power at RFIN Pin at 85°C Case Temperature +30 dBm Maximum Input Power at RFOUT Pin at 85°C Case Temperature +27 dBm Storage Temperature Range -40 to +150 °C ESD Rating - Human Body Model (HBM) 1000 V Moisture Sensitivity Level MSL1 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. 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. Recommended Operating Condition Specification Parameter Min Operating Temperature Range (RF Input power handling de-rates above 85°C) -40 Operating Junction Temperature Supply Voltage 2.7 Typ Max Unit +105 °C 125 °C 5.5 V Nominal Operating Parameters Specification Parameter Unit Min Typ Condition Max General Performance Supply Current Thermal Resistance 180 µA 55 °C/W RF Input Power at RFIN Pin 27 dBm RF Input Power at RFOUT PIN 20 dBm 6000 MHz Steady state operation, current draw during attenuation state transitions is higher. At maximum attenuation state with RF power applied to the RFIN pin. Continuous operation at +85°C case temperature RF Performance Frequency Range 5 Insertion Loss 1.4 dB 2000MHz, 0dB attenuation Attenuation Range 15 dB 1.0dB step size ±(0.2 + 4%) dB Input IP3 55 dBm Input P0.1dB 30 dBm Return Loss 15 dB Input and Output Impedance 50 Ω Absolute Attenuation Error 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]. DS150129 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 14 RFSA3413 Specification Parameter Unit Min Typ Condition Max RF Performance – Continued Switching Speed Successive Step Phase Delta 120 nsec 50% Control to 10%/90% RF 2 Deg 2000MHz Control Digital Logic Low -0.2 0.9 V Digital Logic High 1.6 VDD V Note: Typical performance at these conditions: Temp = +25°C, 2000MHz, 5V Supply Voltage 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]. DS150129 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 14 RFSA3413 Typical Application Schematic 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]. DS150129 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 14 RFSA3413 Typical Performance: 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]. DS150129 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 14 RFSA3413 Typical Performance: Note: Attenuator remains monotonic if step error is less than +1.0dB. 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]. DS150129 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 14 RFSA3413 Typical Performance: 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]. DS150129 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 14 RFSA3413 Typical Performance: 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]. DS150129 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. 8 of 14 RFSA3413 Evaluation Board Schematic 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]. DS150129 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. 9 of 14 RFSA3413 Evaluation Board Bill of Materials (BOM) Description Reference Designator RFSA3413-410 Manufacturer Manufacturer's P/N Dynamic Details (DDI) Toronto RFSA3413-410 Digital Step Attenuator 5MHz to 6000MHz U1 RFMD RFSA3413SB CAP, 1µF, 10%, 25V, X7R, 1206 C15 Taiyo Yuden (USA), Inc. CE TMK316BJ105KL-T J1-J4 Molex SD-73251-4000 CONN, HDR, ST, PLRZD, 2-PIN, 0.100" P3 ITW Pancon MPSS100-2-C CONN, SKT, 24-PIN DIP, 0.600", T/H P2 Aries Electronics Inc. 24-6518-10 CONN, HDR, ST, 9-PIN, 0.100" P1 SAMTEC INC. TSW-109-07-G-S MOD, USB TO SERIAL UART, SSOP-28 M1 (See Note) Future Technology Devices Int'l UM232R C10 Murata Electronics GRM1555C1H471JA01D C11-C14 NA NA CONN, SMA, END LNCH, UNIV, HYB MNT, FLT CAP, 470pF, 5%, 50V, C0G, 0402 DNP Note: M1 should be mounted into P2 with respect to the Pin 1 alignment of M1 and P2. 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]. DS150129 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. 10 of 14 RFSA3413 Evaluation Board Assembly Drawing 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]. DS150129 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. 11 of 14 RFSA3413 Evaluation Board Programming Using USB Interface Parallel Mode Refer to the Control Bit Generator (CBG) Software Reference Manual for detailed instructions on how to setup the software for use. Apply the supply voltage to P3. Select ‘RFSA3413’ from the RFMD Parts List of the CBG user interface. Set the attenuation value using the CBG user interface. The attenuator is set to the desired state and measurements can be taken. Evaluation Board Programming Using External Bus Parallel Mode This configuration allows the user to control the attenuator through the P1 connector using an external harness. Remove the USB interface if it is currently installed on the evaluation board. Connect a user-supplied harness to the P1 connector. The parallel bus signal names for P1 are indicated on the evaluation board. Cross reference for device pin names to P1 connector signals is as follows: C1 = D2, C2 = D3, C4 = D4, C8 = D5. Apply the supply voltage to P3. Send the appropriate signals onto the parallel bus lines in accordance with the Parallel Interface Attenuation Truth Table. The attenuator is set to the desired state and measurements can be taken. Default Power-up State The default attenuation state is minimum (0dB) when supply voltage is applied to the attenuator. If a different attenuation state is desired during power up, this can be accomplished by applying signals according to the Parallel Interface Attenuation Truth Table. The attenuator will power up to the state applied to the parallel bus during turn on. 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]. DS150129 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. 12 of 14 RFSA3413 Pin Names and Descriptions Pin Name Description 1 VDD Supply Voltage 2 RFIN RF Input Pin; Incident RF power must enter this pin for rated thermal performance and reliability. Do not apply DC power to this pin. Pin may be DC grounded externally and is grounded thru resistors internal to the part. 3 N/C Open in package. Connect to PCB ground or leave floating. 4 N/C Open in package. Connect to PCB ground or leave floating. 5 N/C Open in package. Connect to PCB ground or leave floating. 6 N/C Open in package. Connect to PCB ground or leave floating. 7 N/C Open in package. Connect to PCB ground or leave floating. 8 N/C Open in package. Connect to PCB ground or leave floating. 9 N/C Open in package. Connect to PCB ground or leave floating. 10 N/C Open in package. Connect to PCB ground or leave floating. 11 RFOUT 12 N/C Open in package. Connect to PCB ground or leave floating. 13 C8 8dB Bit Parallel Logic Input; 3V CMOS compatible logic. 14 C4 4dB Bit Parallel Logic Input. 3V CMOS compatible logic. 15 C2 2dB Bit Parallel Logic Input. 3V CMOS compatible logic. 16 C1 1dB Bit Parallel Logic Input. 3V CMOS compatible logic. Paddle EPAD RF Output Pin; Pin may be DC grounded externally and is grounded thru resistors internal to the part. GND the paddle with as many vias as possible. Quantity 9 GND vias recommended. Parallel Interface Attenuation Truth Table Attenuation Word D5 (C8) D4 (C4) D3 (C2) D2 (C1) Attenuation State H H H H 0dB / Reference Insertion Loss H H H L 1dB H H L H 2dB H L H H 4dB L H H H 8dB L L L L 15dB 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]. DS150129 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. 13 of 14 RFSA3413 Package Drawing (Dimensions in millimeters) Branding Diagram 3413 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]. DS150129 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. 14 of 14