Computer/Embedded Technology


High definition audio codec

17 September 2008 Computer/Embedded Technology

IDT has introduced a new high definition, low power PC audio codec designed to help bring home-entertainment-level audio fidelity to enterprise desktop and notebook systems, while supporting mobile user capabilities such as advanced processing for voice over Internet protocol (VoIP).

The IDT 92HD71B features four stereo channels, and is compatible with the Intel high definition (HD) audio interface. The audio device provides stereo 24-bit resolution with sample rates up to 192 kHz. The dual digital SPDIF outputs enable simple integration with multichannel consumer entertainment equipment, including audio integration with system HDMI video. The codec incorporates proprietary technology to achieve digital to audio conversion signal-to-noise ratio fidelity in excess of 100 dB. It also includes extensive optimisations to minimise unwanted audio artefacts, such as ‘pops’, during system power-up.

In addition to high-fidelity, low power devices, the IDT PC audio solution provides a flexible, easy-to-customise graphical user interface (GUI), an audio effects designer program enabling system designers to optimise their system characteristics, and numerous audio processing capabilities required for home entertainment, VoIP and other audio computing applications. As a result, these audio solutions enable OEM customers to maximise battery life, offer advanced usage models for PC audio, provide their end-customers the ability to personally manage the quality of their audio experience, and achieve high levels of overall audio fidelity, compatible with the most stringent Windows Logo Program fidelity requirements.

The 92HD71B and software supports full-duplex stereo audio and simultaneous VoIP telephony by supporting multiple, independent audio streams. Additionally, the optimised and flexible power management, including driver optimisations and specialised audio circuitry mitigates pop/click sound anomalies, offering a smoother audio experience. The audio solution provides a mono output for laptop sub-woofer and support for 1,5 V and 3,3 V HD audio signalling with run-time selection to enable a wide range of system designs.

Additional features include:

* Digital microphone inputs, enabling small form-factor high fidelity digital microphones, optimised for VoIP telephony and voice recognition.

* High performance analog mixer option, enabling flexibility for mixing audio sources into a single integrated stream.

* Integrated headphone amplifier to eliminate external circuitry.

* Jack insertion detection to enable dynamic, advanced user event detection and management.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Bringing Bluetooth Channel Sounding to automotive and beyond with KW47
Altron Arrow Telecoms, Datacoms, Wireless, IoT
NXP’s new Channel Sounding-certified KW47 and MCX W72 wireless MCUs are set to help automakers with distance measurement, bringing an additional ranging solution for car access and autonomous systems, and will be utilised across a broader spectrum of applications.

Read more...
Wi-Fi 6 and Bluetooth LE coprocessor module
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The ST67W611M1 from STMicroelectronics boasts an all-in-one design which, together with its capabilities, contribute to making it an attractive choice for IoT edge devices requiring a single-chip solution.

Read more...
Wi-Fi 6 plus Bluetooth LE SoC
Altron Arrow Telecoms, Datacoms, Wireless, IoT
Silicon Labs’ SiWx917M SoC is the company’s lowest power Wi-Fi 6 SoC, ideal for ultra-low power IoT wireless devices using Wi-Fi, Bluetooth, Matter, and IP networking for secure cloud connectivity.

Read more...
Simple battery charger ICs for any chemistry
Altron Arrow Editor's Choice Power Electronics / Power Management
The LTC4162 is a highly integrated, high voltage multi-chemistry synchronous monolithic step-down battery charger and PowerPath manager with onboard telemetry functions and optional maximum power point tracking.

Read more...
Microchip enhances TrustMANAGER platform
Altron Arrow DSP, Micros & Memory
Firmware over-the-air updates and remote cryptographic key management provide scalable solutions for addressing IoT security challenges.

Read more...
Adaptive optics’ power solution
Altron Arrow Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.

Read more...
First NVMe SSD Built with 8th-gen BiCS FLASH
EBV Electrolink Computer/Embedded Technology
KIOXIA recently announced the development and prototype demonstration of its new KIOXIA CM9 Series PCIe 5.0 NVMe SSDs, which incorporates CMOS directly Bonded to Array technology.

Read more...
Wide input voltage buck-boost converter
Altron Arrow Power Electronics / Power Management
The MAX77859 from Analog Devices is a high-efficiency, high-performance buck-boost converter targeted for systems requiring a wide input voltage range of between 2,5 and 22 V.

Read more...
High-density power module for AI at the edge applications
Altron Arrow Power Electronics / Power Management
The MCPF1412 power module from Microchip has integrated I2C and PMBus interfaces for flexible configuration and monitoring.

Read more...
When it comes to long-term reliability of RF amplifier ICs, focus first on die junction temperature
Altron Arrow Editor's Choice Telecoms, Datacoms, Wireless, IoT
When considering the long-term reliability of integrated circuits, a common misconception is that high package or die thermal resistance is problematic. However, high or low thermal resistance, by itself, tells an incomplete story.

Read more...