Product category: Analogue and Mixed Signal ICs
News Release from: Oki Electric | Subject: ML2612
Edited by the Electronicstalk Editorial Team on 21 June 2007
Smaller codecs enable
shorter signal paths
Oki Electric has developed what it reckons to be the world's smallest 16bit audio codecs
Oki Electric has unveiled samples of its ML2612 family, claimed to be the world's smallest 16bit audio codecs, and ideal for recording and playback applications in portable devices. Using Oki's W-CSP technology, the company has succeeded in reducing the device footprint to 2.0 x 2.5mm for the ML2614/ML2616, making it the world's smallest package of its kind.
This article was originally published on Electronicstalk on 21 June 2007 at 8.00am (UK)
Related stories
Thai LSI expansion targets TV demand
To respond to the rapidly expanding demand of full high-definition LCD TVs, starting this summer, Oki will expand production from 10 million to 15 million per month
HD TV drivers speed up to 120Hz
Three new driver LSIs for full high-definition LCD TVs improve speed and grey-scale performance while reducing heat generation
Volume production is expected to start from September 2007.
When a microphone is incorporated in a device, the audio codec LSI needs to be placed close to the microphone, as it digitises the weak signal from the microphone.
Thus flexibility of physical design around the microphone is limited.
Further reading
UV sensor IC uses SOI-CMOS technology
A novel SOI-CMOS-based UV sensor offers easy integration into mobile devices
Real-time clock gives much longer battery life
An ultralow-power real-time clock IC with current consumption of just 0.15uA delivers 1.5 times longer battery life than conventional chips
As portable devices become smaller and thinner, there have been increasing demands to mount the audio codec, together with other components that are a source of noise, on a single board using high-density packaging.
'We are pleased to introduce our latest, and world's smallest, audio codec LSI of its kind which can limit sound degradation to a minimum, as the audio codec can be placed close to the microphone'.
'To respond to the market needs, we included a microphone amplifier, A/D and D/A convertors, and a speaker amplifier in the LSI using OKI's W-CSP packaging', says Masahiko Morioka, President of Silicon Solutions Company at Oki Electric Industry.
'In this way, OKI was able to reduce the size of the audio codec LSI to one-third of conventional LSIs, thus enabling greater design flexibility around the microphone'.
The audio codec included in the LSI operates at 1.65V.
Oki has succeeded in reducing the voltage of the analogue area of the device, in which power consumption is large, and this in turn will enable lower power consumption in portable devices.
The LSI also uses an interface circuit to connect to a digital microphone.
Thus, noise will not be superposed even when the microphone and audio codec are placed apart from each other.
Oki has also included a programmable filter that can eliminate specific noise frequencies arising from wind or the system when recording, and a programmable equaliser that can correct acoustic characteristics, such as difficulties in playing back low-level sound, that are typical of small devices.
The filter and equaliser combine to improve recording and playback sound quality in portable devices.
• Oki Electric: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• NEW
• Electronicstalk Home Page
Related Business News
India's NTPC says gets govt nod for coal block
Mumbai, Aug 14 (Reuters) - India's state-run power producer, NTPC Ltd. , said on Tuesday the government had granted in-principle approval for allocating 354 million tonnes of coal reserves to the company.
Wall Street Reporter Interviews TenFold CEO
TenFold Corporation , provider of EnterpriseTenFold SOA, an SOA-compliant, Ajax-enabled applications engine for building and implementing enterprise-scale applications and services, today announced the availability of a recent Wall Str
Gunnebo Industrier: Interim Report January-June 2007
Examine the Advanced Printed Circuit Boards (PCB) Market
Reportlinker.com announces that a new market research report related to the worldwide microelectronics industry is now available to its catalogue.
Itc^deltacom Reports 2007 Second Quarter Results
ITC^DeltaCom, Inc. , a leading provider of integrated communications services to customers in the southeastern United States, today reported its operating and financial results for the quarter ended June 30, 2007.
Search the Pro-Talk network of sites
