AIC111 Datasheet, PDF (1/29 Pages) Texas Instruments – IC DESIGN SPECIFICATION 1.3-V microPower DSP/uC VOICE BAND AUDIO CODEC

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AIC111
SLAS382 – JUNE 2003
IC DESIGN SPECIFICATION
1.3-V microPower DSP/µC VOICE BAND AUDIO CODEC
FEATURES
D Single Channel Codec
D Noise Shaped Delta Sigma ADC and DAC
Technology
D Low Supply Voltage and Current:
– 1.3-V Typical Power Supply
– 350-µA Typical Supply Current Drain
D Power Supply Up Monitor and Low Battery
Monitor That Also Automatically Shuts Off
H-Bridge Output When Battery Decays Below
1.05 V in a Nontransient Manner
D Typical 2.4-µVrms Input Referred Noise With
0.01% Total Harmonic Distortion for Front
End and 108-dB Dynamic Range
D ADC Has 87-dB Dynamic Range With 73-dB
Total Harmonic Distortion 100 Hz–10 kHz,
40-kHz Sampling Rate
D Typical 55-dB PSRR 100 Hz to 10 kHz for
Analog Front End
D Low Noise Programmable Gain
Amplifier/Compressor Front End With
Programmable Fast and Slow Attack and
Decay Rates With Dual or Single Attack and
Decay Rate Option
D Typical Output Noise of 12 µVrms With 0.05%
Total Harmonic Distortion for Delta Sigma
DAC and H-Bridge Output Driver
D Low Jitter Oscillator That Generates all
Internal Clocks and Generates 5-MHz Output
DSP/µC Clock
D Regulated Bandgap Voltage Reference
D Programmable Functionality via Digital Serial
Interface
– McBSP Interface, DSP Protocol
– TI TMS320VC54x, TMS320VC55x DSPs
– SPI Interface, Microcontroller Protocol
– TI MSP430xx
D External Chip Power Down and Reset
D Available in:
– 32-Pin QFN 5×5-mm Plastic Package
– 32-Pad Bumped Die in Waffle Pack (wafer
scale packaging), or Tape and Reel,
(Preview, Available 3rd Quarter 2003)
APPLICATIONS
D Hearing Instruments
D Personal Medical Devices
D Hearing Protection
D Aural Processing
D Low-Power Headsets
DESCRIPTION
The AIC111 IC design specification serves to provide
product development teams with a guideline for how the
AIC111 IC is specified and programmable options that are
available. The document outlines a top-level block
description of the IC along with system specifications and
functions. Individual block descriptions and target
specifications are also outlined.
The Texas Instruments AIC111 is a TI µPower DSP
compatible, or microcontroller compatible audio codec
product, or analog interface circuit. The AIC111 is part of
a comprehensive family of DSP/µC based high-
performance analog interface solutions. The AIC111 is
targeted primarily at personal medical devices, such as
hearing instruments, aural preprocessing applications,
and low-power headset applications. The AIC111 is used
in any design requiring a programmable time constant
PGA/compressor interface, high dynamic range
analog-to-digital converter, an external DSP/µC
handling signal processing, or a low distortion
digital-to-analog converter with a balanced H-Bridge
speaker driver. It supports a CMOS digital interface
tailored for TI DSPs with the McBSP protocol such as
TMS320VC54x DSP family and SPI-based controllers
such as TI MSP430x family of microcontrollers. The
AIC111 also has an external microphone or sensor supply
and bias and power supply up low-battery monitor
indicator.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
This document contains information on products in more than one phase of
development. The status of each device is indicated on the page(s) specifying its
electrical characteristics.
Copyright  2003, Texas Instruments Incorporated