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R3710-CEAA-E1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
© Semiconductor Components Industries, LLC, 2016
June, 2017 − Rev. 7
1 Publication Order Number:
R3710/D
RHYTHM R3710
Preconfigured DSP System
Description
RHYTHMt R3710 is a preconfigured DSP system designed
specifically for Invisible−In−Canal (IIC) hearing aid devices.
Available in the industry’s smallest hybrid form−factors, it is well
suited for hearing aid designs that are placed deep in the ear canal.
Using miniaturized advanced packaging techniques,
ON Semiconductor enables hearing aid manufacturers to take
advantage of the highly compact size to produce IIC hearing aids that
fit a greater portion of the market. Featuring iSceneDetectt
environmental classification, adaptive noise reduction, feedback
cancellation, and up to 8−channel WDRC, R3710 provides the
advanced features and performance level typically found in high−end
products.
Acoustic Environment Classification − The iSceneDetect
environmental classification algorithm is capable of analyzing the
hearing aid user’s acoustic environment and automatically optimizes
the hearing aid to maximize comfort and audibility.
iLogt 6.0 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 during follow up visits.
Evoket 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.
Adaptive Feedback Canceller − Automatically reduces acoustic
feedback and allows for an increase in the stable gain while
minimizing artifacts for music and tonal input signals.
Adaptive Noise Reduction − The adaptive noise reduction
algorithm on R3710 monitors noise levels independently in 128
individual bands and employs advanced psychoacoustic models to
provide user comfort.
Tinnitus Masking − R3710 is equipped with a noise source that can
be used to mask tinnitus. The noise can be shaped, attenuated, and duty
cycled then summed into the audio path either before or after the
volume control.
In−situ Tone and Noise Generator − The narrow−band noise and
tone 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
PAD CONNECTION
MARKING DIAGRAM
R3710
XXXXXX
R3710 = Specific Device Code
XXXXXX = Work Order Number
VIN2
VIN1
MS2
DVC
OUT+
OUT−
NC
VC
MS1
SDA
CLK
VB
MGND VREG
GND2 GND1
1
(Bottom View)
2
161514
13
12
11
10
9
3
4
5
678
See detailed ordering and shipping information on page 15 o
f
this data sheet.
ORDERING INFORMATION
SIP16
CASE 127DX
RHYTHM R3710
www.onsemi.com
2
Other Key Features − R3710 also supports the following
features: 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. R3710 also encompasses
industry−leading security features to avoid cloning and
software piracy.
Features
• Advanced Research Algorithms:
♦ iSceneDetect Environmental Classification
♦ 128−band Adaptive Noise Reduction
♦ Adaptive Feedback Cancellation (AFC)
• iLog 6.0 Datalogging
• Tinnitus Masking Noise Generator
• Evoke Acoustic Indicators
• 1, 2, 4, 6 or 8 Channel WDRC
• AGC−O with Variable Threshold, Time Constants, and
Optional Adaptive Release
• 16−band Graphic Equalizer
• Narrow−Band Noise Stimulus
• SDA or I
2
C Programming
• 8 Biquadratic Filters
• 2 Analog Inputs
• 16 kHz or 8 kHz Bandwidth
• 4 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, Halogen Free/BFR Free
and are RoHS Compliant
thinSTAX Packaging
• Hybrid Typical Dimensions:
0.180 x 0.123 x 0.060 in. (nominal)
(4.57 x 3.12 x 1.52 mm)
Figure 1. Hybrid Block Diagram
Noise Reduction (128 bands)
Graphic EQ (16 bands)
128 bands
WDRC (1,2,4,6 or 8 channels)
ACOUSTIC
INDICATORS
AND SHAPER
NOISE GENERATOR
RHYTHM R3710
CROSS
FADER
S
S
BLOCK DIAGRAM
PEAK
CLIPPER
D/A
HBRIDGE
FEEDBACK
CANCELLER
POST
BIQUAD
FILTERS
3 & 4
VOLTAGE
REGULATOR
M
U
X
A/D
PRE
BIQ UAD
FILTERS
AGCO
VOLUME
CONTROL
WIDEBAND
GAIN
CONTROL
A/D
POST
BIQUAD
FILTERS
1 & 2
CONTROL
(MS/DIGVC)
ENVIRONMENTAL
CLASSIFICATION
FREQUENCY
BAN D
SYNTHESIS
DATA
LOGGING
EEPROM
CLOCK
GENERATOR
PROGRAMMING
INTERFACE
FREQUENCY
BAN D
ANALYSIS
POR
CIRCUITRY
9
5
6
13
4
12
3
7
GND1
8
GND2
14
NC
OUT+
OUT−
VC
DVC
MS1
MS2
VB
16
2
1
15
11
10
VREG
VIN1
VIN2
MGND
SDA
CLK
RHYTHM R3710
www.onsemi.com
3
SPECIFICATIONS
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter Value Units
Operating Temperature Range 0 to +40 °C
Storage Temperature Range −20 to +70 °C
Absolute Maximum Power Dissipation 50 mW
Maximum Operating Supply Voltage 1.65 VDC
Absolute Maximum Supply Voltage 1.8 VDC
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.
WARNING: Electrostatic Sensitive Device − Do not open packages or handle except at a static−free workstation.
WARNING: Moisture Sensitive Device − RoHS Compliant; Level 4 MSL. Do not open packages except under controlled conditions.
Table 2. ELECTRICAL CHARACTERISTICS (Supply Voltage V
B
= 1.25 V; Temperature = 25°C)
Parameter
Symbol Conditions Min Typ Max Units
Minimum Operating Supply Voltage V
BOFF
Ramp down, audio path 0.93 0.95 0.97
V
Ramp down, control logic 0.77 0.80 0.83
Supply Voltage Turn On Threshold V
BON
Ramp up, zinc−air 1.06 1.10 1.16
V
Ramp up, NiMH 1.16 1.20 1.24
Hybrid Current
All functions, 32 kHz sampling rate − 665 − mA
All functions, 16 kHz sampling rate − 575 −
EEPROM Burn Cycles − − 100 k − − cycles
Low Frequency System Limit − − − 125 − Hz
High Frequency System Limit − − − 16 − kHz
Total Harmonic Distortion THD V
IN
= −40 dBV − − 1 %
THD at Maximum Input THD
M
V
IN
= −15 dBV, HRX − ON − − 3 %
Clock Frequency f
CLK
− 3.973 4.096 4.218 MHz
REGULATOR
Regulator Voltage
V
REG
− 0.87 0.90 0.93 V
System PSRR PSRR
SYS
1 kHz, Input referred, HRX enabled − 70 − dB
INPUT
Input Referred Noise
IRN Bandwidth 100 Hz − 8 kHz − −108 −106 dBV
Input Impedance Z
IN
1 kHz − 3 −
MW
Anti−aliasing Filter Rejection − f = [DC − 112 kHz], V
IN
= −40 dBV − 80 − dB
Crosstalk − Between V
IN1
and V
IN2
− 60 − dB
Maximum Input Level − − − −15 −13 dBV
Analogue Input Voltage Range V
AN_IN
V
IN1
, V
IN2
0 − 800 mV
Input Dynamic Range − HRX − ON Bandwidth
100 Hz − 8 kHz
− 95 96 dB
Audio Sampling Rate − − 8 − 48 kHz
OUTPUT
D/A Dynamic Range
− 100 Hz − 8 kHz − 88 − dB
Output Impedance Z
OUT
− − 10 13
W
CONTROL A/D
Resolution (monotonic)
− − 7 − − bits
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

R3710-CEAA-E1

Mfr. #:
Buy R3710-CEAA-E1
Manufacturer:
ON Semiconductor
Description:
Audio DSPs PRECONFIG DSP: RHYTHM -
Lifecycle:
New from this manufacturer.
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