BR281W31A101V1G ON Semiconductor

BelaSigna R281 Always-Listening, Voice Trigger Solution Introduction BelaSigna R281 is an ultralowpower voice trigger solution for a wide range of consumer electronic devices. In a typical application www.onsemi.com BelaSigna R281 is always listening and will detect a single, usertrained trigger phrase, asserting a wakeup signal when this trigger phrase is detected. MARKING Alwayslistening key phrase detection with an average power DIAGRAM consumption of less than 300 W (not including the power consumption of the microphone) preserves Standby battery life. BelaSigna R281 is an ultraminiature solution that is available in a 0W703 001 2.45 mm x 2.77 mm WLCSP package. It can be designed onto a single AWLYYWW layer PCB with 5 mil routing and with a minimal amount of external WLCSP31 components. CASE 567NB 2 An external, I C host controller is required to configure the device for operation. 0W689001 = Specific Device Code A = Assembly Location Key Features WL = Wafer Lot YY = Year Proven UltraLowPower Digital Signal Processing WW = Work Week (DSP) Technology = PbFree Package Audio DSP Technology Originally Developed for Hearing Aids Offers the Required Computational Power at Extremely Low Current Consumption ORDERING INFORMATION < 300 W Average Current Consumption (not including microphone) See detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. MixedSignal SystemonChip (SoC) Audiograde, Analog Input with Onboard Preamplifier Builtin, Regulated Voltages Including Onboard Microphone Bias for Power Efficient Operation Supports Analog or Digital Microphone Input Interfaces and Peripherals 2 I Cbased Device Configuration and Control GPIO Wake Signal Internal Oscillator Applications Mobile Phones Tablets Portable Electronic Devices Wearables Toys Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: March, 2018 Rev. 4 R281/DBelaSigna R281 Figures and Data Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min Max Units Input Voltage on any Digital Pin 0.3 3.8 V Input Voltage on any Analog Pin 0.3 3.8 V Input Voltage on any Supply Pin 0.3 3.8 V Current on any Digital Pin 5 mA Current on any Analog Pin 10 mA Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Table 2. RECOMMENDED OPERATING CONDITIONS Parameter Symbol Min Typ Max Units Power Supply Applied to VBAT VBAT 1.75 1.8 1.98 V Power Supply Applied to VDDO VDDO 1.62 1.8 3.63 V Internal Oscillator Clock Frequency 1 2.56 20 MHz Ambient Operating Temperature Range Ta 40 85 C Table 3. ESD AND LATCHUP CHARACTERISTICS Parameter Conditions Max Units ESD Human Body Model JEDEC JS 001 2010, all pins 2000 V ESD Charged Device Model JESD22 C101 E, all pins 750 V ESD Machine Model JESE22 A115 C, all pins 250 V Latch Up JEDEC STD 78, all pins 100 mA Electrical Performance Specifications Typical Values Unless otherwise noted, Typ values specify the typical Min and Max values specified may be based on factory values based on design and characterization data under production test limits, design, or characterization data. normal operating conditions. Normal operating conditions Normal Operating Conditions include a supply voltage (VBAT) of 1.8 V and an operating Unless otherwise noted, normal operating conditions temperature of 25C. For specific blocks, the details of the indicate an ambient temperature Ta = 25C and a supply normal operation conditions are described in their voltage VBAT = 1.8 V. VDDD and VDDA are calibrated to respective sections. their preset factory calibration settings and correspond to Minimum and Maximum Values their respective Typ values. VDDO is powered externally at Unless otherwise noted, Min and Max values specify the 1.8 V. No external loads are applied to digital I/O or analog designed range or measurement range and are guaranteed by pins. design and/or characterization. Table 4. SYSTEM DC ELECTRICAL CHARACTERISTICS Typical operating conditions (Ta = 25 C, VBAT=VDDO=1.8 V, VDDD=1.4 V) unless otherwise noted Parameter Symbol Conditions Min Typ Max Units Average Run Mode Current IDD VBAT=VDDA=1.8 V, charge pump disabled 170 A Assumes a ratio of speech present versus quiet environment of 20/80 www.onsemi.com 2