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PT8501 V1.3

- 1 -

March, 2006

Dolby Digital Decoder IC

PT8501

DESCRIPTION

The PT8501 is a complete low-cost decoder for use in the decompression of higher-performance

multi-channel digital audio, such as Dolby Digital (also called AC3). The PT8501 provides a complete

and flexible solution for multi-channel audio decoding in laser-disc players, DVD movie players, stereo

receivers, out-board decoders, HDTV sets, head-end decoders, set-top boxes, and similar products.

PT8501 contains on-chip firmware for decoding and processing DOLBY DIGITAL (AC-3), linear PCM

data. It also includes a Dolby Pro Logic decoder for decoding matrix surround encoded PCM data or

2-ch Dolby digital data. With a built-in S/PDIF receiver, no external S/PDIF receiver is necessary in

order to receive digital bitstreams.

FEATURES

Built-in S/PDIF receiver and automatic bitstream detection

Built-in large output buffers for both surround and center channels delay

Pink Noise Generator built-in for easy set up of surround system

1 set of digital audio input port can be programmed to fit different format

3 sets of digital audio output port, can decode up to 6 channels

Low operating voltage, 2.5V, with 3.3V IO tolerance

Available in 100 pins, QFP and 80 pins LQFP

APPLICATIONS

Multimedia Speakers

DVD Player

AV Amplifier

Set Top Box