• Dolby Frame Synchronizer DP583

    The Dolby Frame Synchronizer DP583 synchronizes Dolby E, Dolby Digital, and PCM audio to your facility's broadcast, cable, or satellite plant reference.

    Dolby Frame Synchronizer DP583 Benefits

    Unlike conventional audio synchronizers that work only with PCM audio, the Dolby® Frame Synchronizer DP583 can sync Dolby Digital and Dolby E bitstreams from outside (asynchronous) sources to your local reference. This enables you to accomplish the following:

    • Align the guard band on Dolby E bitstreams for switching and editing
    • Allow Dolby E and Dolby Digital bitstreams to pass through headend and turnaround facilities
    • Maintain A/V sync

    Postproduction facilities can also use the DP583 to reframe Dolby E streams that have been stored on devices without reference capabilities (such as 20-bit DAT or hard-disc recorder) so they can be recorded onto VTRs or servers.

    The DP583 can operate with both tracking and fixed delays of up to a maximum of 310 ms. When tracking with Dolby E, the video reference provides framing information; when tracking with PCM, a standard TTL input signal compatible with most video frame synchronizers can be used. The output clock can be derived from either a video black or AES reference.

    The DP583 shows you the incoming bitstream type (Dolby E, Dolby Digital, or PCM), the program configuration, and the current delay through the unit. It also counts the number of frame drops or repeats for subsequent retrieval, and it logs any errors discovered in Dolby E and Dolby Digital bitstreams. Redundant power supplies with separate inputs assure fail-safe operation in broadcast-critical paths.

    • Syncs to Local Reference

      Syncs Dolby Digital and Dolby E bitstreams from outside (asynchronous) sources to your local reference

    • Reframe Dolby E Streams

      Enables postproduction facilities to reframe Dolby E streams that have been stored on devices without reference capabilities

    • Versatile Display

      Displays the incoming bitstream type, the program configuration, and the current delay through the unit

    Dolby DP583 Specifications

    Power Requirements

    • Two built-in power supplies 100–240 VAC, 50–60 Hz, auto-sensing, 10 W maximum, designed to operate from a centrally switched source

    Dimensions and Weight

    • 1-U rackmount: 44 × 483 × 324 mm (1.75 × 19 × 12.75 in.)
    • 
Net: 2.9 kg (6.3 lb)

    Environmental Conditions

    • Operating: 0°C–50°C (32°F–122°F) natural convection cooling, 0%–98% relative humidity (noncondensing)
    • Nonoperating: −20°C to 70°C (–68°F to 158°F)

    Regulatory Notices

    • North America: This unit complies with the limits for a Class A digital device pursuant to Part 15 of the FCC rules and Industry Canada ICES-003 Class A requirements. It is UL Listed for the US and Canada.

    • Europe: This unit complies with the requirements of Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC and carries the CE marking accordingly.

    Dolby DP583 Front Panel

    Display and Controls

    • Two-line, 16-character LCD with control keys

    Status LEDs

    • Indicate audio input status, reference input status, power supply status, fault, and error

    RS-232 Serial Remote Control Port

    • 8-pin female mini-DIN connector for software upgrades

    Dolby DP583 Rear Panel

    Main Input

    • BNC female connector with loop-through, unbalanced, 75Ω, signal levels per AES-3ID-1995 (SMPTE 276M), external 75Ω termination required

    AES Reference Input

    • BNC female connector, 75Ω internally terminated, signal levels per AES-3ID-1995 (SMPTE 276M); supports 32, 44.1, and 48 kHz sampling rates

    Video Reference Input

    • BNC female connector with passive loop-through; NTSC/PAL program or black; signal level per SMPTE RP 154-1994, external 75Ω termination required

    Bypass Input

    • BNC female connector, 75Ω internally terminated, signal levels per AES-3ID-1995 (SMPTE 276M); in Bypass mode, termination is switched out and the Bypass Input signal is sent to the Main Output

    Main Output

    • BNC female connector, unbalanced, 75Ω, signal levels per AES-3ID-1995 (SMPTE 276M)

    RS-485 Serial Remote Control Port

    • 9-pin female D-connector for software upgrades

    Status Port

    • 9-pin female D-connector, 0–5 V TTL level; includes active high TTL input for delay tracking