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  ON Semiconductor Electronic Components Datasheet  

R3910 Datasheet

Preconfigured DSP System

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RHYTHM R3910
Preconfigured DSP System
for Hearing Aids
Description
RHYTHMt R3910 is a preconfigured hearing health processor
based on a powerful DSP platform. Featuring iSceneDetectt
environmental classification, adaptive noise reduction, superior
feedback cancellation, fully automated and adaptive microphone
directionality, and up to 8−channel WDRC, the R3910 is ideal for
high−end, full featured products. Available in one of the industry’s
smallest form−factors, it is well suited for all hearing aid types,
including those placed deep in the ear canal.
Acoustic Environment Classification − The iSceneDetect 1.0
environmental classification algorithm is capable of analyzing the
hearing aid wearer’s acoustic environment and automatically
optimizes the hearing aid to maximize comfort and audibility.
iLogt 4.0 Datalogging − Enables the recording of various hearing
aid parameters such as program selection, volume setting and ambient
sound levels. The sampling interval can be configured to record from
every 4 seconds up to once every 60 minutes. The fitting system can
present the data to help the fitting specialist fine tune the hearing aid
and counsel the wearer.
EVOKE t Advanced Acoustic Indicators − Allows
manufacturers to provide more pleasing, multi−frequency tones
simulating musical notes or chords to indicate events such as program
or volume changes.
Automatic Adaptive Directionality − The automatic Adaptive
Directional Microphone (ADM) algorithm automatically reduces the
level of sound sources that originate from behind or to the side of the
hearing aid wearer without affecting sounds from the front. The
algorithm can also gather input from the acoustic environment and
automatically select whether directionality is needed or not,
translating into additional current savings.
Adaptive Feedback Canceller − Automatically reduces acoustic
feedback. It allows for an increase in the stable gain while minimizing
artifacts for music and tonal input signals.
Adaptive Noise Reduction − The adaptive noise algorithm on
R3910 monitors noise levels independently in 128 individual bands
and employs advanced psychoacoustic models to provide user
comfort.
Tinnitus Masking − R3910 is equipped with a noise source that can
be used to mask tinnitus. The noise can be shaped and attenuated and
then summed into the audio path either before or after the volume
control.
In−situ Tone Generator − The narrow−band noise stimulus feature
can be used for in−situ validation of the hearing aid fitting. The
frequency, level and duration of the stimuli are individually
adjustable.
www.onsemi.com
25 PAD
HYBRID
CASE 127DN
PAD CONNECTION
VIN2 17
TIN 16
DAI 15
VC 14
D_VC 13
SDA 12
CLK 11
18
VIN1
19
N/C
20
N/C
21
N/C
22
N/C
23
N/C
25 24
1 VREG
2 MGND
3 GND
4 PGND
5 OUT+
6 OUT−
7 VBP
MS1 10
9
8
MS2
(Bottom View)
MARKING DIAGRAM
VB
R3910−CFAB
XXXXXX
R3910−CFAB = Specific Device Code
XXXXXX
= Work Order Number
ORDERING INFORMATION
See detailed ordering and shipping information on page 18 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
August, 2015 − Rev. 9
1
Publication Order Number:
R3910/D


  ON Semiconductor Electronic Components Datasheet  

R3910 Datasheet

Preconfigured DSP System

No Preview Available !

RHYTHM R3910
Other Key Features − R3910 also supports the following
features: FrontWave® directional processing, built−in
feedback path measurement, cross fading between audio
paths for click−free program changes, 16−band graphic
equalizer, 8 generic biquad filters (configurable as
parametric or other filter types), programming speed
enhancements, optional peak clipping, flexible compression
adjustments, direct interfaces to analog or digital volume
control, rocker switch, direct audio input and telecoil.
R3910 also encompasses industry−leading security features
to avoid cloning and software piracy.
Features
Advanced Research Algorithms:
iSceneDetect Environmental Classification
Automatic Adaptive Directional Microphones (ADM)
FrontWave Directionality
128−band Adaptive Noise Reduction
Adaptive Feedback Cancellation (AFC)
iLog 4.0 Datalogging
Tinnitus Masking Noise Generator
Evoke Acoustic Indicators
Auto Telecoil with Programmable Delay
1, 2, 4, 6 or 8 Channel WDRC
Feedback Path Measurement Tool
AGC−O with Variable Threshold, Time Constants, and
Optional Adaptive Release
16−band Graphic Equalizer
Narrow−Band Noise Stimulus
SDA or I2C Programming
8 Biquadratic Filters
4 Analog Inputs
16 kHz or 8 kHz Bandwidth
6 Fully Configurable Memories with Audible Memory
Change Indicator
96 dB Input Dynamic Range with HRXt Headroom
Extension
128−bit Fingerprint Security System and Other Security
Features to Protect Against Device Cloning and
Software Piracy
High Fidelity Audio CODEC
Soft Acoustic Fade between Memory Changes
Drives Zero−Bias 2−Terminal Receivers
Internal or External Digital Volume Control with
Programmable Range
Rocker Switch Support
Support for Active Hi or Active Lo Switching
20−bit Audio Processing
thinSTAX Packaging
E1 RoHS Compliant Hybrid
These Devices are Pb−Free and are RoHS Compliant
thinSTAX) Packaging
Hybrid Typical Dimensions:
0.220 x 0.125 x 0.060 in.
(5.59 x 3.18 x 1.52 mm)
www.onsemi.com
2


Part Number R3910
Description Preconfigured DSP System
Maker ON Semiconductor
Total Page 22 Pages
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