18-bit Sigma Delta Stereo Audio Analog-to-Digital Converter IP in TSMC 28nm

Overview

AD18SD28HPC is a complete low-cost stereo analog to digital converter for digital audio applications. The ADC comprises of a continuous time sigma delta modulator having a multibit quantizer and followed by a programmable OSR decimation filter. The device is fabricated on TSMC 28HPC process where high speed precision analog circuits are combined with high density logic circuits.

Key Features

18-bit stereo audio ADC
0.85 Vrms differential analog input
1.8V/0.9V analog/digital power supply
Dynamic range : 100dB
Total harmonic distortion +Noise: -90dB
Output data rate 48KHz
I2S digital audio interface
Very low power consumption
Power down mode
Ultra-low area
-40C to +125C operating temperature range
Ratio of fold back noise to baseband noise less than 0.2dB
Passband ripple less than 0.8dB
Linear phase digital filtering
Zero phase error between channels
DC attenuation up-to -120dB
Ultra-low power

Benefits

Ultra-low power Audio
industry best Schreier FOM

Applications

Portable audio players
Multimedia phones
Digital cameras

Deliverables

Datasheet
Hard Macro (GDSII)
Characterisation Report (as applicable)
Abstract View (LEF)
Integration and Customer Support

Technical Specifications

Foundry, Node

TSMC 28nm

Maturity

Silicon Validated

Availability

June 2018

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