R3710 datasheet(2/18 Pages) ONSEMI

2 / 18 page

RHYTHM R3710

www.onsemi.com

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 I2C 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

BLOCK DIAGRAM

PEAK

CLIPPER

D/A

HBRIDGE

FEEDBACK

CANCELLER

POST

BIQUAD

FILTERS

3 & 4

VOLTAGE

REGULATOR

A/D

PRE

BI Q UA D

FILTERS

AGCO

VOLUME

CONTROL

WIDEBAND

GAIN

CONTROL

A/D

POST

BIQUAD

FILTERS

1 & 2

CONTROL

(MS/DIGVC)

ENVIRONMENTAL

CLASSIFICATION

FREQUENCY

BA N D

SYNTHESIS

DATA

LOGGING

EEPROM

CLOCK

GENERATOR

PROGRAMMING

INTERFACE

FREQUENCY

BA N D

ANALYSIS

POR

CIRCUITRY

GND1

GND2

OUT+

OUT−

DVC

MS1

MS2

VREG

VIN1

VIN2

MGND

SDA

CLK

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