DBD08_PD.pdf

DBD08 Dolby E and Dolby Digital Decoder stand alone or ADD-ON card A Synapse ® product

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DOLBY® PROCESSING

audio for video

Block schematic & I/O panel DBD08

AES 1/2

DOLBY E/DOLBYDIGITAL (AC3) ON AES

AES 3/4

CHANNEL SWAP DECODER

GAIN CONTROL

AES 5/6

AES 7/8 2-CHANNEL MONITOR/AUX

ADD_ON E_LOSS 1/2 <-> 3/4

METADATA

1/2-3/4 SPLIT PLL

µP

AUDIO IN/OUTPUTS TO/FROM SYNAPSE BUS

REFERENCE INPUTS 1

2

1

2

3

4

3

2

RACK CONTROLLER

1

INTERNAL SYNAPSE BUS

BPL08

DOLBY E, DOLBY DIGITAL (BIT-STREAM) INPUT AES/EBU 1/2 OUTPUT AES/EBU 3/4 OUTPUT AES/EBU 5/6 OUTPUT AES/EBU 7/8 OUTPUT MONITOR/AUX OUTPUT

META-DATA OUTPUT

July 2009

DBD08

DOLBY® PROCESSING

audio for video

Features The DBD08 is a fully compliant Dolby E decoder. Dolby E is designed to transport multichannel audio (discrete 5.1 surround Dolby Digital) in a broadcast environment. The DBD08 decodes up to 8 channels of high quality audio plus Dolby digital metadata from a single AES pair. Fundamental to the operation of Dolby E is the synchronization of audio with video, in order to provide an exact match between encoded Dolby E audio frames and video frames Dolby E requires synchronization to a video signal. All Dolby E encoders and decoders must have either a direct reference video signal, or derive the information from a video reference signal. The DBD08 can also be used as a Dolby Digital (AC3) surround sound decoder.

Independent Dolby E decoder Compatible with Dolby Digital (AC3) Monitor output can be used for Dolby E, PCM from channel 3/4 of bus ADD-ON Dolby E decoder with DBD10 or HDD10 for the de-embedding function, including before and after delay de-embedding for PCM and E data 8 channels on 75 Ohms BNC (4xAES/EBU) Output channel swapping Audio output gain and phase control Locks to Black & Burst or Mastercard Full control and status monitoring through the front panel of the SFR04/SFR08/SFR18 frame and the Ethernet port (ACP)

Complementary cards:

DBE08, DDE51 HDD10

Applications

OB Van Dolby E decoder when space, hot swap ability, SNMP, or redundant supply is important 18 decoders in 4 RU Dolby E decoding in trucks, studios and contribution sites.

Ordering information Module: DBD08: Dolby E and Dolby Digital Decoder stand alone or ADD-ON Standard I/O: BPL08_DBD08: I/O panel for DBD08

July 2009

DBD08

DOLBY® PROCESSING

audio for video

Specifications AES Audio Input (Dolby E) Connector Standard Number of Inputs Sampling Rate

BNC or ADD-ON bus SMPTE 276M for single ended synchronous or asynchronous PCM/AES 1 48 kHz Synchronous

Resolution

NA

Minimum Input/Output Delay Number of Inputs Impedance Level

1 Frame 2 75 Ohms 0.2V to 1V nom

Reference input through RRC Number of Inputs Standard

2 on SFR18, 2 on SFR08 and 1 on SFR04 PAL Black Burst ITU624-4/SMPTE318, Composite NTSC SMPTE 170M 1Vp-p nominal, 75 Ohms terminated through loop

AES Audio Output Number of Outputs Connector Resolution Sampling Rate Nominal Input/Output Delay

5 BNC ADD-ON bus 24 bits 48KHz synchronous 1 Frame

Miscellaneous Weight Operating Temperature Dimensions

Approx. 250g 0 °C to +50 °C 137 x 296 x 20 mm (HxWxD)

Electrical Voltage Power

July 2009

+24V to +30V <5 Watts

DBD08