Cap or Capless Audio DAC

The Innosilicon Audio Codec is a 24-bit solution that supports both cap and capless outputs from mono up to 7.1 surround sound. Based on a Sigma-Delta noise-shaping technique with full path filters, the Codec is low power while providing 95dB SNR in DAC and 93dB SNR in ADC.

A self-contained solution, the ADC, DAC and power amplifier are all integrated to create a reliable solution that is both low in noise and small in size. This impressive Audio Codec is suitable for applications in high end consumer, automotive, multimedia and many other digital audio systems.

KEY FEATURES:

Silicon proven in 14/16nmFinFet, 28nm, 40nm, 55nm, 65nm, 90nm and 130nm across SMIC, TSMC & Global Foundries
24 bit DAC with 95dB SNR
24 bit ADC with 93dB SNR
Supports cap or capless output with impedances from 16Ω to 32Ω with custom analog pads
Microphones can either be single ended or differential while the Automatic Level Control provides smooth audio recording
Contains no mixed signal circuitry for a smaller solution with simple, but flexible, integration
Uses core voltage for the Codec and IO voltage for the IO. No special power requirements
Small die size (28nm) 0.5mm² for ADC or DAC path, 1.62mm² for complete stereo Codec
Low power (28nm) 6mW for stereo playback, 7mW for stereo recording and less than 5μA in standby
Mono, Stereo, 5.1 and 7.1 surround sound support
Programmable input and output analog gains
Integrated digital interpolation & decimation filters
Sampling rate support for: 8, 12, 16, 24, 32, 44.1, 48 and 96kHz
A fractional PLL supporting 6MHz to 20MHz input reference clocks is an available option

INNOSILICON ADVANTAGES:

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

BLOCK DIAGRAM:

EXAMPLE APPLICATIONS:

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