GA3219 Datasheet, PDF (1/14 Pages) Gennum Corporation – Venture-TM Digital DSP System

VENTURE GA3219
Pre-configured DSP System
for Hearing Aids
Description
VENTURE GA3219 combines the power capabilities of an
advanced platform with advanced research, delivering cutting-edge
features and high performance.
This hardware platform is ON Semiconductor’s industry−leading
programmable digital signal processing platform. Adaptive
Algorithms is a methodology developed by ON Semiconductor that
couples state−of−the−art acoustic algorithms to ensure high−fidelity
digital sound quality.
Venture GA3219’s adaptive noise reduction preserves perceived
speech levels without causing distortion. It monitors noise levels
independently in 128 individual bands. This strategy also employs
advanced psychoacoustic models to eliminate audible noise and
reduce the amount of perceptible artifacts introduced by the noise
reduction process.
Based on a phase cancellation method, Venture GA3219’s adaptive
feedback reduction algorithm provides increased maximum stable
gain unlike other feedback strategies. Additionally, it features rapid
adjustment for dynamic feedback situations and resistance to tonal
inputs.
In addition to these adaptive algorithms, Venture GA3219 also
supports the following features: Frontwave^® directional processing,
cross fading between audio paths for click−free memory changes,
8−band graphic equalizer, 8 generic biquad filters (configurable as
parametric or other filter types), programming speed enhancements,
optional peak clipping, flexible compression adjustments,
programmable tones for memory change and low battery indicators,
wideband gain, volume control and industry−leading security features
to avoid cloning and software piracy.
Features
• Adaptive Algorithms:
♦ 128−band Adaptive Noise Reduction
♦ Adaptive Feedback Cancellation
• 128−bit Fingerprint Security System and Other Security Features to
Protect Against Device Cloning and Software Piracy
• Soft Acoustic Fade Between Memory Changes
• FrontWave Directional Processing
• High Fidelity Audio CODEC
• 20−bit Audio Precision
• 95 dB Input Dynamic Range with HRXt Headroom Extension
• 1, 2 or 4 Channel WDRC Compression
• 8−Band Graphic EQ
• Eight Biquadratic Filters
• Drives Zero−Bias 2−Terminal Receivers
• Four Analog Inputs
• Two Memory Select Pads
www.onsemi.com
16 PAD
HYBRID
CASE TBD
FMIC
PAD CONNECTION
MGND
15
16
1
VREG
RMIC 14
VC 13
SDA 12
GND 11
PGND 10
2 TIN
3 DAI
4
MS
5 MS2
6 VB
9
8
7
OUT+ OUT−
(Bottom View)
VBP
MARKING DIAGRAM
GA3219D−E1
XXXXXX
GA3219D
E1
XXXXXX
= Specific Device Code
= RoHS Compliant Hybrid
= Work Order Number
ORDERING INFORMATION
See detailed ordering and shipping information on page 12 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
August, 2015 − Rev. 4
Publication Order Number:
GA3219/D