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Video data analogue-to-digital converter

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PHILIPS Electronics has expanded its portfolio of analogue-to-digital interface products with the introduction of the TDA8754 triple eight-bit video data converter.

Suitable for use in liquid crystal display (LCD) monitors, projectors and televisions, the TDA8754 converts RGB/YUV signals from virtually any analogue source into digital data.

The TDA8754 then digitally processes the data for use in high-speed flat panel displays with resolution up to QXGA (2048 x 1536 at 85Hz) and high definition televisions (HDTVs), eliminating the need for external components for processing data. This integrated functionality reduces component costs and simplifies the design process.

The TDA8754 also comes in a package with a footprint of 17mm x 17mm, the smallest footprint on the market for these types of devices.

Digital display systems are experiencing rapid growth, with In-Stat MDR predicting 30% growth for LCD PC monitors and business projectors and 60% growth for digital TV monitors between 2002 and 2007. With the proliferation of digital display systems, there is the need for devices that support the transition from analogue-to-digital.

Philips is enabling this transition by offering systems that support both analogue and digital standards as well as devices such as the TDA8754.

With two analogue inputs, a wide speed range and robust SYNC processing for compliance with all analogue video formats, the TDA8754 provides customers with a flexible solution for converting analogue video signals under eight-bits into triple eight parallel data streams for quality digital picture.

In addition to offering fast digitalisation speeds, from SVGA up to QXGA 85Hz, and robust SYNC processing, Philips' TDA8754 also features low phased lock loop (PLL) jitter for high accuracy sampling and picture quality.

The integrated ADC shows outstanding performances such as an effective number of bits (ENOB) of 7.6 bit and a differential non-linearity (DNL) of 0.25LSB under the condition that fclk = 270MHz and fi = 10MHz. Other features include frame and field detection, full operation +3.3V and low power dissipation.

Philips’ TDA8754 is currently available in LQFP144 and LBGA208 packaging. The LBGA208 package is pin-to-pin compatible with Philips’ TDA8756. The TDA8756 offers the same functionality as the TDA8754 with the additional benefit of a Digital Visual Interface (DVI) receiver that includes High-bandwidth Digital Content Protection (HDCP).

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