RFSA3714 50MHz to 6000MHz, Digital Step Attenuator General Description Qorvos RFSA3714 is a 7-bit digital step attenuator (DSA) that features high linearity over the entire 31.75dB gain control range with 0.25dB steps. The RFSA3714 features three modes of control: serial, latched parallel, and direct parallel programming. The RFSA3714 has a low insertion loss of 1.5dB at 2GHz. Patent pending circuit architecture provides Overshoot-free transient switching performance. 24 Pad 4.0mm x 4.0mm x 0.85mm QFN Package The RFSA3714 is available in a 4mm x 4mm QFN package. Product Features 7-Bit, 31.75dB Range, 0.25dB Step Patented Circuit Architecture Overshoot-free Transient of DSA Settings Frequency Range 50MHz to 6000MHz High Linearity, IIP3 +55dBm Typical Serial and Parallel Control Interface Functional Block Diagram Switching Time 120nsec Typical Single Supply 3V to 5V Operation No DC Voltage on RF Pins, External DC Grounding Allowed Power-up Default Maximum Attenuation Applications 2G through 4G Base Stations Point-to-Point WiFi Test Equipment Ordering Information Part No. Description Top View RFSA3714TR13 13 Reel with 2500 pieces 50MHz to 6000MHz Evaluation Board with RFSA3714PCK-410 5-piece sample bag Datasheet October 27, 2020 Subject to change without notice - 1 of 22 - www.qorvo.com RFSA3714 50MHz to 6000MHz, Digital Step Attenuator Absolute Maximum Ratings Recommended Operating Conditions Parameter Rating Parameter Min Typ Max Units (1) Storage Temperature 40 to +150C Temperature Range -40 +105 C RF Input Power at RFIN, T=105C +30 dBm Junction Temperature +125 C RF Input Power at RFOUT, T=105C +27 dBm Supply Voltage (V ) +2.7 +5.5 V DD Supply Voltage (V ) -0.5V to +6 V Notes: DD (1)(2) 1. RF Input Power Handling Derates Above 105C All Other DC and Logic Pins -0.5V to +6 V Notes: 1. Supply Voltage Must Be Applied Prior to Any Other Pin Voltages. 2. Not to exceed V DD. 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. Electrical Specifications (1) Parameter Conditions Min Typ Max Units General Performance Steady state operation, current draw during attenuation state transitions is Supply Current A 180 higher. At maximum attenuation state with RF Thermal Resistance C/W 55 power applied to the RFIN pin RF Input Power at RFIN Pin +27 dBm Continuous operation at +105C case temperature RF Input Power at RFOUT Pin +20 dBm RF Performance Frequency Range 50 6000 MHz Insertion Loss 2000MHz, 0dB attenuation setting 1.5 dB Attenuation Range 0.25dB step size 31.75 dB 50 MHz to 2.7 GHz (0.15 + 2%) dB Absolute Attenuation Error 2.7 GHz to 4 GHz (0.15 + 3%) dB 4 GHz to 6 GHz (0.25 + 5%) dB Input IP3 dBm +55 Input P0.1dB +30 dBm Return Loss 15 dB Input and Output Impedance 50 General Performance Switching Time 50% control to 10%/90% RF nsec 120 Successive Step Phase Delta 2000MHz Deg 2 Control Digital Logic Low 0 0.63 V Digital Logic High 1.17 VDD V Notes: 1. Typical performance at these conditions: Temp = 25C, 2000MHz, 5V Supply Voltage Datasheet October 27, 2020 Subject to change without notice - 2 of 22 - www.qorvo.com