AIC111_16 Datasheet, PDF (1/33 Pages) Texas Instruments – IC DESIGN SPECIFICATION 1.3-V microPower™ DSP/μC VOICE BAND AUDIO CODEC

AIC111
www.ti.com
SLAS382A – JUNE 2003 – REVISED NOVEMBER 2005
IC DESIGN SPECIFICATION
1.3-V microPower™ DSP/μC VOICE BAND AUDIO CODEC
Check for Samples: AIC111
FEATURES
1
•2 Single Channel Codec
• Noise Shaped Delta Sigma ADC and DAC
Technology
• Low Supply Voltage and Current:
– 1.3-V Typical Power Supply
– 350-µA Typical Supply Current Drain
• 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
• Typical 2.4-µVrms Input Referred Noise With
0.01% Total Harmonic Distortion for Front End
and 108-dB Dynamic Range
• ADC Has 87-dB Dynamic Range With 73-dB
Total Harmonic Distortion 100 Hz-10 kHz, 40-
kHz Sampling Rate
• Typical 55-dB PSRR 100 Hz to 10 kHz for
Analog Front End
• 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
• Typical Output Noise of 12 µVrms With 0.05%
Total Harmonic Distortion for Delta Sigma DAC
and H-Bridge Output Driver
• Low Jitter Oscillator That Generates all
Internal Clocks and Generates 5-MHz Output
DSP/µC Clock
• Regulated Bandgap Voltage Reference
• Programmable Functionality via Digital Serial
Interface
– McBSP Interface, DSP Protocol
– TI TMS320VC54x™, TMS320VC55x™ DSPs
– SPI Interface, Microcontroller Protocol
– TI MSP430xx
• External Chip Power Down and Reset
• Available in:
– - 32-Pin QFN 5×5-mm Plastic Package
– - 32-Pad Bumped Die in Waffle Pack (wafer
scale packaging)
APPLICATIONS
• Hearing Instruments
• Personal Medical Devices
• Hearing Protection
• Aural Processing
• 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.
1
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.
microPower is a trademark of Texas Instruments.
2
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2005, Texas Instruments Incorporated