PT8501_10 Datasheet, PDF (1/4 Pages) Princeton Technology Corp – Dolby Digital Decoder IC

Dolby Digital Decoder IC
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URL: http://www.princeton.com.tw
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.
The decoder is controlled via an I²C serial host interface. Standard digital audio data formats are
supported, including I²S, MSB-first right-justified, and MSB-first left-justified.
FEATURES
z Dolby^® Digital (5.1-channel) decoder up to 448Kbps.
z Dolby^® Surround Pro Logic decoder
z Built-in S/PDIF receiver and automatic bitstream detection
z Built-in large output buffers for both surround and center channels delay
z Pink Noise Generator built-in for easy set up of surround system
z I²C control interface
z 1 set of digital audio input port can be programmed to fit different format
z 3 sets of digital audio output port, can decode up to 6 channels
z Low operating voltage, 2.5V, with 3.3V IO tolerance
z Available in 100 pins, QFP and 80 pins LQFP
APPLICATIONS
z Multimedia Speakers
z DVD Player
z AV Amplifier
z Set Top Box
PT8501 V1.3
-1-
March, 2006