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Product category: Reference Designs
News Release from: NXP (formerly Philips Semiconductors) | Subject: pnx83xx
Edited by the Electronicstalk Editorial Team on 9 May 2003

Reference design upgrades
legacy TVs to digital

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The latest addition to the Nexperia family of iDTV semiconductor solutions allows digital video broadcast capabilities to be added to existing low-end and mid-end analogue TV set designs

The latest addition to the Nexperia family of iDTV semiconductor solutions allows DVB (digital video broadcast) capabilities to be added to existing low-end and mid-end analogue TV set designs. The pnx83xx is supplied as a simple reference system solution that greatly reduces the need for application software development.

This provides set makers with a short time-to-market and low investment route for introducing new iDTV and set-top-box receivers.

The pnx83xx will promote availability of the low-cost receivers and set-top boxes needed for the widespread roll-out of digital terrestrial TV services, and the further penetration of digital services into the connected home via multiple TV sets.

Many governments had intended to turn off their analogue TV broadcasts within the next few years, but this process has been delayed by the large number of legacy analogue TV sets still in use by consumers.

These are often not their main TV sets, but are the second and third TV sets located in other rooms in their homes.

Consumers are not expected to switch entirely over to digital terrestrial services until these TVs can be replaced or converted with low-cost iDTVs or set-top boxes.

"By providing what is essentially a full system solution to DVB reception, and providing it in a form that can be integrated easily into a conventional analogue TV chassis, we are taking a great majority of the design effort and risk away from our customers", said Paul Martin, Product Marketing Manager for Digital TV products at Philips Semiconductors.

"The pnx83xx can also be used as a system solution to make a set-top-box receiver, reducing the design effort even more for those customers active in both digital TV as well as set-top-box applications".

The pnx83xx reference design is based around Philips' new pnx831x home entertainment engine and its TDA10046 channel decoder.

Overall system cost is kept low by manufacturing the pnx831x in Philips' latest 0.12um high-volume CMOS process and by reducing the system memory requirement for standard DVB reception to a single 16Mbyte SDRAM and a 4Mbyte NOR Flash memory.

The pnx831x also provides interfaces for the back-channel modem plus conditional access smart card and PCMCIA software upgrade readers.

The entire system is controlled by the TV set's microcontroller via an I2C bus interface using Philips' IBOLink command protocol.

The pnx83xx can also be supplied with a choice of MHEG (Multimedia and Hypermedia information coding Expert Group) software stacks, suiting it for use in iDTVs and set-top boxes destined for countries such as the UK where this standard has already been adopted for enhanced digital TV.

In addition to providing a simple system solution with a low bill of materials, the pnx83xx also minimises the customer's risk in terms of software licensing fees.

The main license cost is shifted from an up-front fee to a per-use fee, which means that customers only pay in relation to the volume of iDTVs or set-top-boxes they produce.

The pnx83xx IBO reference design is available from May 2003.

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