TC electronic DB8 Owner's Manual

1

DB8/DB4 SDI

TC Electronic, Sindalsvej 34, DK-8240 Risskov
[e-mail]

SDI Card manual Rev 1.00
English version - prod. No: 606028011

SD Audio

• Embedded audio multiplexer and demultiplexer

• Supports 6 SD video formats

• supports eight audio channels at one time

• Compliant to SMPTE 272M A and C & compatible with
common non-compliances

• Full support for 48kHz synchronous 16-bit, 20-bit and
24-bit audio

• Programmable audio sample distribution

• All four audio groups can be deleted

• Any two audio groups can be replaced when operating
in multiplexer mode

DSP6000 SDI

AUDIO EMBEDDER / DE-EMBEDDER

BA individually buffered

SDI inputs SDI outputs

The SDI card for DB4/DB8 supports all commonly used SD and HD formats. While de-embedding and embedding 8
channels of audio (48kHz, 24 bit), selectable from the four SDI Groups in chunks of four audio channels, it passes the
video side untouched.

Processing may be inserted on any two of the four SDI Groups, and re-embedding may take place on any two groups.
Consequently, the machine enables cross patching of audio and format conversion between SDI Groups. The design
features two separate SDI inputs, of which one is active at a time, and two parallel, separately buffered outputs.

The DB's present an attractive SDI solution with massive jitter rejection, 48 bit processing and low latency. They also
feature bit transparent, synchronous data handling, enabling routing of data reduced audio, such as AAC, DTS or Dolby E.

The SDI card

HD Audio

• Embedded audio multiplexer and demultiplexer

• Supports 38 HD video formats

• Supports eight audio channels at one time

• Fully SMPTE 299M compliant & compatible with
common non-compliances

• Up to eight bit errors can be corrected in each audio
data packet

• Full support for 48kHz synchronous or asynchronous
16-bit, 20-bit and 24-bit audio

• All four audio groups can be deleted

• Any two audio groups can be replaced when operating
in multiplexer mode

2

SDI ICON PAGES

System Main Clock page

Clock Master

Sets the master clock of the processor. A machine with SDI
option always expects an SDI input signal. If SDI is not
available, the machine reverts to 48 kHz internal rate
operation, which should be regarded an error condition.

Clock Fallback

Determines how the processor reacts if it looses external
reference. A machine with SDI option always expects an
SDI input signal. If SDI is not available, the machine
reverts to 48 kHz internal rate operation, which should be
regarded an error condition. This state is called
“Freewheel”. As this is an unexpected state the Clock
Status field turns yellow.

I/O Setup page

Setup page with SDI installed.

The Frame-System-I/O-Setup appears as illustrated below
when a SDI card is installed.

System I/O DSP page

Input Select

Select between SDI inputs A or B

Input/Output channels 1-4/5-8

Use the Input/Output parameters to select which SDI
Groups become available on the Routing display of the
processor.

Group 1-4 indicators

These "LEDs" indicate which SDI Input Groups have audio
available.

Locked Clock Rate

This information field displays the currently locked Clock
Rate, which is always 48 kHz when the processor is used
with SDI. If the field shows "Freewheeling", an external
reference is not available or stable. In an installation, this
should be regarded an error condition.

Freewheeling:
Indicates when the unit is Freewheeling. - See also “Clock
Fallback” in the previous column.

Example: Free-wheeling

Frequency

This information field displays the SDI Input data rate in a
range between 140 Mbps and 1.5 Gbps.