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Product category: Microprocessors, Microcontrollers and DSPs
News Release from: Zilog | Subject: Z8 Encore! XP
Edited by the Electronicstalk Editorial Team on 16 December 2005

MCU leads the charge in VoIP adapter

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International communications technology leader Arris is using Zilog's award-winning Z8 Encore! XP MCU in its next-generation embedded multimedia terminal adapter with VoIP.

International communications technology leader Arris has selected Zilog's award-winning Z8 Encore! XP MCU for use in the design of its next-generation embedded multimedia terminal adapter (E-MTA) with voice over IP (VoIP) - the Touchstone TM502 telephony modem Arris is one of the leading suppliers of E-MTAs and cable modems and has been at the forefront of the VoIP revolution, securing significant market share in this emerging sector

Two significant milestones have been crucial to the successful implementation of VoIP: the standardisation of VoIP protocol, and the development of battery and semiconductor technology allowing uninterrupted VoIP operation during extended power disruptions.

Delivering two lines of primary line VoIP along with high-speed data access, the Arris TM502 E-MTA uses the Z8 Encore! XP to manage the functional block dedicated to monitoring, testing and charging the unit's batteries, enabling cable operators to offer either four hours or eight hours of uninterrupted telephony service during power outages.

The integration of Zilog's high speed analogue-digital convertor (ADC) on-chip was a major contributory factor in Arris selecting the Z8 Encore! 4k, as this plays an important role, offering 14bit resolution, which is required to maintain the integrity of the lithium ion in the battery block.

In addition, Arris made full use of the Encore! XP's other on-chip peripherals, such as the temperature sensor and op amp, which also tied into the operation of the battery block and reduced the bill of materials and external component count, resulting in a significant reduction in overall system cost.

"Having the Z8 Encore! XP designed into the new Arris E-MTA is a significant win for Zilog that strengthens and formalises our working relationship with them as a new customer", observed Zilog CEO and Chairman Jim Thorburn.

"It reinforces our position as a leading supplier of microcontrollers for use in battery-charging applications and highlights the increased levels of integration that this product line offers.

The battery-charging block is a key area of differentiation with the TM502 E-MTA, and the technology Arris developed using the Z8 Encore! XP is an important element of this differentiation.

Our overall system cost and product offering in this area was the strongest and these factors, coupled with the levels of support offered by our engineers to help the customer develop their product, were precisely why we succeeded over our main competitors, including the incumbent supplier.

We look forward to a long and mutually successful relationship with Arris".

Commenting on the relationship with Zilog, Tony Andruzzi, Engineering Director at Arris Broadband's CPE Division added: "The Arris Touchstone portfolio of products has proven extremely successful, leading the way in voice, data and VoIP services".

"We selected the Z8 Encore! XP microcontroller to manage the battery charging block in the TM502 because we felt that this was an area where Zilog particularly excelled in terms of integration, quality, overall package and support, all elements that will enable Arris to continue to offer the best value telephony products on the market today".

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