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BR281Q32A101V1G Datasheet, PDF (1/11 Pages) ON Semiconductor – Always-Listening, Voice Trigger Solution | |||
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BelaSigna R281
Always-Listening, Voice
Trigger Solution
Introduction
BelaSigna® R281 is an ultraâlowâpower voice trigger solution for a
wide range of consumer electronic devices. In a typical application
BelaSigna R281 is âalways listeningâ and will detect a single,
userâtrained trigger phrase, asserting a wakeâup signal when this
trigger phrase is detected.
âAlwaysâlisteningâ key phrase detection with an average power
consumption of less than 300 mW (not including the power
consumption of the microphone) preserves Standby battery life.
BelaSigna R281 is an ultraâminiature solution that is available in
both a 5 mm x 5 mm QFN32 package (488AM) and a 2.42 mm x
2.74 mm WLCSP package (available soon). It can be designed onto a
single layer PCB with 4 mil routing and with a minimal amount of
external components.
An external, I2C host controller is required to configure the device
for operation.
Key Features
Proven UltraâLowâPower Digital Signal Processing
(DSP) Technology
⢠Audio DSP Technology Originally Developed for Hearing Aids
Offers the Required Computational Power at Extremely Low Current
Consumption
⢠< 300 mW Average Current Consumption (not including microphone)
MixedâSignal SystemâonâChip (SoC)
⢠Audioâgrade, Analog Input with Onboard Preâamplifier
⢠Builtâin, Regulated Voltages Including Onboard Microphone Bias
(1 V or 2 V) for Power Efficient Operation
⢠Supports Analog or Digital Microphone Input
Interfaces and Peripherals
⢠I2Câbased Device Configuration and Control
⢠GPIO Wake Signal
⢠Internal Oscillator
Applications
⢠Mobile Phones
⢠Tablets
⢠Portable Electronic Devices
⢠Wearables
⢠Toys
www.onsemi.com
1 32
QFN32
CASE 488AM
MARKING
DIAGRAM
1
0W689â
001
AWLYYWW
G
0W689â001 = Specific Device Code
A
= Assembly Location
WL = Wafer Lot
YY
= Year
WW = Work Week
G
= PbâFree Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
August, 2015 â Rev. 0
Publication Order Number:
R281/D
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