Dolby Laboratories DP503 - Manual (Page 10)

1-2
This manual includes installation procedures, descriptions of Model DP503
operation, installation details, and interface specifications.
The complementary DP524 decoder unit features automatic algorithm detection to
provide foolproof operation in conjunction with the DP503. The DP524 is provided
with its own user manual.
1.2 Features
N Dolby AC-2, Dolby Digital (AC-3), and MPEG Layer-II audio
coding algorithms from 40 kbps - 448 kbps
*
N Mono, dual-mono, or joint stereo modes *
N Algorithm operation at 32, 44.1, 48 kHz sampling rates *
N Analog inputs with 18-bit A/D converters
N Digital inputs (AES/EBU and S/PDIF)
N Built-in sample rate converter and selectable internal sample rate *
N Selectable auxiliary data rates (0 - 9.6 kbps) *
N RS-449 data interface (EIA-530, V.35, and X.21 compatible)
N Internal or external clock reference
N RS-232 port for auxiliary data
N RS-232 port for remote control via PC
N RS-232 port for telco control (terminal adapter/inverse multiplexer)
N Download capability for software upgrades
N Front panel user interface with alphanumeric display
N Ideal for use in a Dolby Fax system
N Built-in test tone generator
N Status indicators with rear-panel logic tallies
* Certain restrictions apply. See product brochure.
1.3 Dolby AC-2 and Dolby Digital (AC-3)
Dolby AC-2 combines spectrum-efficient data compression with professional-
quality audio performance. Two-channel modes excel at conveying different
material such as audio and time code or separate language programming.
Despite the low, spectrum-efficient data rate, Dolby Digital yields very high audio
quality and is suitable for the most demanding of professional and consumer
distribution applications. First demonstrated to the film industry in May of 1991,
Dolby Digital audio coding technology has evolved into a very sophisticated and
flexible system for the digital representation of high quality sound. Dual channel
implementations of the Dolby Digital algorithm can be user-configured to operate
in dual mono or joint stereo modes.
Both the Dolby AC-2 and Dolby Digital algorithms are compatible with Dolby
Matrix Surround decoding. A wide range of bit rates and audio coding modes are
MAIN