RFSA3715 RFSA3715 5MHz to 4000MHz, Digital Step Attenuator Package: QFN, 32-pin, The RFMDs RFSA3715 is a 7-bit digital step attenuator 5.0mm x 5.0mm x 0.85mm (DSA) that features high linearity over the entire 31.75dB gain Features control range with 0.25dB steps. The RFSA3715 features 7-Bit, 31.75dB Range, 0.25dB Step three modes of control: serial addressable, latched parallel Patent Pending Circuit Architecture and direct parallel programming. The RFSA3715 has a low Overshoot-free Transient insertion loss of 1.5dB at 2GHz. Patent pending circuit Switching Performance architecture providing overshoot-free transient switching Frequency Range 5MHz to performance. External address pins allow up to eight DSAs to 4000MHz be controlled on a single bus. The RFSA3715 is available in a High Linearity, IIP3 >55dBm 5mm x 5mm QFN package. Serial and Parallel Control Interface Fast Switching Speed, <120nsec Serial Addressable Supports Up to Eight Addresses 32 31 30 29 28 27 26 25 Single Supply 3V to 5V Operation NC 1 24 CLK RF Pins Have No DC Voltage, Can VDD 2 23 LE Be DC Grounded Externally LOGIC CONTROL A1 PBAR/S 3 22 Power-up Default Setting is A0 4 21 A2 Maximum Attenuation GND 5 20 GND GND 6 19 GND 7-BIT DSA RFIN 7 18 RFOUT Applications GND 8 17 GND 2G through 4G Base Stations 9 10 11 12 13 14 15 16 Point-to-Point WiMax/WiFi Test Equipment Functional Block Diagram Ordering Information RFSA3715SQ Sample bag with 25 pieces RFSA3715SR 7 Reel with 100 pieces RFSA3715TR13 13 Reel with 2500 pieces RFSA3715PCK-410 5MHz to 4000MHz PCBA with 5-piece sample bag RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 DS150205 For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice rfmd.com. 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, 1 of 20 trademarks, and registered trademarks are the property of their respective owners. 2013, RF Micro Devices, Inc. C0.25 GND C0.5 GND C1 GND C2 GND C4 GND C8 GND C16 GND SI GND Absolute Maximum Ratings Caution ESD sensitive device. Parameter Rating Unit Supply Voltage (V ) -0.5 to +6.0 V DD All Other DC and Logic Pins -0.5 to V V DD RFMD Green: RoHS status based on EU Maximum Input Power at RFIN Pin at 85C +30 dBm Directive 2011/65/EU (at time of this document revision), halogen free per IEC Maximum Input Power at RFOUT Pin at 85C +27 dBm 61249-2-21, < 1000ppm each of Storage Temperature Range -40 to +150 C antimony trioxide in polymeric materials and red phosphorus as a flame retardant, ESD Rating - Human Body Model (HBM) 1000 V and <2% antimony in solder. Moisture Sensitivity Level MSL1 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 Unit Min Typ Max Operating Temperature Range (RF Input Power Handling -40 +105 C Derates Above 85C) Operating Junction Temperature 125 C Supply Voltage 2.7 5.5 V Nominal Operating Parameters Specification Parameter Unit Condition Min Typ Max General Performance Supply Current Steady state operation, current draw during attenuation state transitions is 180 A higher. Thermal Resistance 55 C/W RF Input Power at RFIN Pin 27 dBm Continuous operation at +85C case temperature RF Input Power at RFOUT Pin 20 dBm RF Performance Frequency Range 5 4000 MHz Insertion Loss 1.5 dB 2000MHz, 0dB attenuation Attenuation Range 31.75 dB 0.25dB step size Absolute Attenuation Error (0.2 + 4%) dB Input IP3 55 dBm Input P0.1dB 30 dBm Return Loss 15 dB Input and Output Impedance 50 RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 DS150205 For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice rfmd.com. 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, 2 of 20 trademarks, and registered trademarks are the property of their respective owners. 2013, RF Micro Devices, Inc.