Vendor: Vervesemi Microelectronics PVT LTD Category: ADC

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

AD18SD28HPC is a low-cost stereo analog to digital converter for digital audio applications.

TSMC 28nm Silicon Proven View all specifications

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

What’s Included?

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

Silicon Options

Foundry Node Process Maturity
TSMC 28nm 28nm 280 nm Silicon Proven

Specifications

Identity

Part Number
AD18SD28HPC
Vendor
Vervesemi Microelectronics PVT LTD

Provider

Vervesemi Microelectronics PVT LTD
HQ: INDIA
Vervesemi is a fabless semiconductor company incorporated in 2017 and developing high performance ASICs for sensors and wireless, exploiting the expertise of state-of-art data converters and differentiated Analog IP. We are team of analog and RF experts developing Analog solution for semiconductor world. It is a company with high innovation quotient formed by management & technologist having vast experience in semiconductor business. Vervesemi commits to develop innovative products and analog IP solution for various semiconductor applications market such as Energy, 5G market, ADAS, Medical, consumer, and Smart Power. Vervesemi focus is on breakthrough innovations in high end analog and RF market through state of art designs and significantly differentiated PPA. Vervesemi is developing ASIC for sensor application, energy metering, IC for seismic business. Vervesemi has silicon qualified high speed converters suitable for 5G, Microcontroller, Medical and networking application. The IPs are in various technology flavour e.g. TSMC 28nm, UMC 28nm, UMC 40nm, TSMC 180nm, SMIC 180nm, Samsung 8nm. In past, Vervesemi accumulates 2 decade of semiconductors design experience in state-of-art data converters for various market segments, producing 50+ IPs on 30 products per year. In that process, the team has achieved vast silicon maturity experience on 20+ technology nodes with overall 300+ matured products having these IPs. The past expertise is in technology node from 0.25u to 28nm including high voltage, SOI and Space technology. It involved expertise in maturing IPs in automotive, microcontroller, consumer, MEMS, Space applications.

Learn more about ADC IP core

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This paper introduces a novel closed-loop testing methodology for efficient linearity testing of high-resolution Successive Approximation Register (SAR) Analog-to-Digital Converters (ADCs). Existing test strategies, including histogram-based approaches, sine wave testing, and model-driven reconstruction, often rely on dense data acquisition followed by offline post-processing, which increases overall test time and complexity.

Three ways of looking at a sigma-delta ADC device

The growing availability of digital ICs like microcontrollers, microprocessors, and field-programmable gate arrays (FPGAs) allows developers to use complex digital processing techniques rather than analog signal conditioning. For this reason, analog-to-digital converters (ADCs) have become a widely-used component in mixed-signal circuits.

Specifying a PLL Part 1: Calculating PLL Clock Spur Requirements from ADC or DAC SFDR

In high end RF systems, such as 5G radios, the requirements are so stringent that the source of this strongest unwanted tone can be the PLL. This article outlines how spurs in the input clock to the ADC or DAC may limit the SFDR. This in turn will set the requirements for the spurs for the input clock (from a PLL), in order to achieve a specific SFDR.

Save power in IoT SoCs by leveraging ADC characteristics

Power-sensitive applications such as Internet-of-Things (IoT) require a comprehensive power savings strategy within the system-on-chip (SoC). Techniques relying solely on the use of traditional power down modes and low supply voltage may not be enough to achieve the required power targets. The analog block is often assumed to be too sensitive and not compatible with aggressive power management techniques.

High Speed ADC Data Transfer

When continuously running a high speed ADC, it can be a challenge to deal with the firehose of raw data available at the output. To use City Semiconductor’s 2.5 GS/s 12-bit ADC, for example, 30 gigabits per second of data have to be accepted.

Frequently asked questions about ADC IP cores

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

18-bit Sigma Delta Stereo Audio Analog-to-Digital Converter IP in TSMC 28nm is a ADC IP core from Vervesemi Microelectronics PVT LTD listed on Semi IP Hub. It is listed with support for tsmc Silicon Proven.

How should engineers evaluate this ADC?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this ADC IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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