Vistek V1636 24-bit Audio Digital
To Analog Converter
Issue 4.0
3
1
Description
The V1636 is a broadcast quality 24-bit audio digital to analog converter which forms part of
the Vistek V1600 range of interface products. It is a 3U high card which is fitted into either a
V1601 or V1603 rack, from which it receives its power. A passive rear module with screw
terminal connections, is required for all signal interconnections.
The unit accepts two AES-3 digital stereo audio inputs and converts these signals to 4
differential mono analog outputs in two pairs. The V1636 is fully compatible with the Vistek
DART remote system, allowing status information to be read and control settings invoked by a
DART compatible rack controller.
INPUTS:
·
2 x AES3-1992 balanced 110
W
digital audio channels, Z
in
= 110
W
(or 75
W
unbalanced with special rear module).
·
Sampling frequencies of 32-96kHz are supported.
·
AES inputs A and B can be different sample frequencies - asynchronous sample
rate conversion to an internal sample rate of 48kHz is performed on the inputs.
OUTPUTS
:
·
4 x Analog differential quasi-balanced outputs with Z
out
< 50
W
(V1636) or Zout <
18
W
(V1636ARD)
·
Max Output level: 0dBFS = +28dBu. Output level adjustable by on-card switches
from 0dBFS = +14dBu to 0dBFS=+28dBu in 1dB steps.
FUNCTIONS:
·
Panel Selectable/DART controlled
Delay
from 0ms to 1250ms may be applied to
the outputs. All outputs are subject to the same delay value.
·
Panel Selectable/DART controlled
A/B Swap
transposes the AES input streams.
·
Panel Selectable/DART controlled
Test Tone
of 997Hz at -18dBu may be applied
to either or both A or B channelpair analog outputs
·
Control source may be Panel switches (
LOCAL
mode) or DART (
REMOTE
mode)
·
The V1636 responds to de-emphasis (50
m
s or CCITT) code embedded in the
AES Channel Status.