Low Power Stereo Audio CODEC

Overview

Innosilicon Codec is a low power, high resolution, stereo CODEC solution which employs Sigma-Delta noise-shaping technique. The ADC, DAC and power amplifier are integrated to provide total solutions. With 24-bit resolution for DAC and 24-bit resolution for ADC, Innosilicon Codec is suitable for applications in high end consumer digital audio systems, automobile audio, multimedia and digital systems.

Key Features

24-bit DAC with 90dB SNR
Support 16? to 32? headphone output and speaker output
Low power: 2.5mA for stereo playback
24-bit ADC with 90dB SNR
Support single-ended and differential microphone input and line input
Automatic Level Control (ALC) for smooth audio recording
Low power: 5mA for stereo recording
Small die size:

0.3mm2 for per DAC path
0.3mm2 for per ADC path
0.6mm2 for entire mono application
Note: The area parameters are for reference only. Please refer to the final LEF file for the actual values.

Low power: less than 0.05mA for standby
Programmable input and output analog gains
Digital interpolation and decimation filter integrated
Sampling rate of 8kHz/12kHz/16kHz/24kHz/32kHz/44.1kHz/48kHz

Benefits

Low power consumption
Fully customizable
Small area
Simple integration process
Available options include:
FPGA integration support
Chip level integration

Deliverables

Databook and detailed physical implementation guides
Complete set of timing models
Library Exchange Format (LEF)
Encrypted Verilog Models
Layout vs. Schematic (LVS) report
GDSII database for foundry merge

Technical Specifications

Foundry, Node

TSMC 22nm,SMIC 28nm

SMIC

In Production: 28nm HKC+
Silicon Proven: 28nm HKC+

TSMC

In Production: 22nm
Silicon Proven: 22nm

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