GRASS VALLEY 8914 - User manual

Specifications Ordering Information
J1 J2
J3 J4
J5 J6
J7 J8
J9 J10
8900V-R
AES 2
Outputs
AES 1
Outputs
AES 1
Input
Loopthru
AES 2
Input
RX
RX
AES 2
AES 1
Delay
Delay
FPGA
AES2
Outputs
AES 1
Outputs
Loopthrough
Delay
Controls
Serial
to
Parallel
Serial
to
Parallel
9
As the transition to digital video and audio
accelerates, there is an increased need to
delay the audio associated with broadcast
video due to the relatively large processing
times associated with DVEs and video
production switchers. The 8914 provides a
low-cost and easy-to-use solution to the lip
sync errors associated with these large delays.
We’ve included two fully controllable delay
paths on a single board allowing up to 20
digital audio delays and distribution in a 2 RU
frame. If you want more distribution instead,
the first channel can be passively looped to the
second channel for seven outputs. The 8914
is also a full-featured reclocking distribution
amplifier.
Key Features
Two full-function digital delays on a single•
board
Up to 0.5 second delay in 2 ms increments•
per channel
Four outputs on channel 1, three outputs•
on channel 2
Up to 20 AES/EBU delays in a 2 RU 8900-V•
frame
Accepts 32, 44.1, and 48 kHz audio signals•
Note: for balanced 110Ω requirements see
the 8912 series digital audio distribution
amplifiers
Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module,
Gecko video frames: 8900TX-V, 8900TF-V
Power Rating
3.5 Watts – single slot
Input
Number of inputs:
•Channel1:oneloopthrough
•Channel2:oneterminated
Connectors: 75Ω BNC
Standard: AES-3id-1995 and SMPTE 276M
AES frame rates: 32, 44.1, or 48 kHz
Return loss: >25 dB (0.1 to 6 MHz)
Outputs
Number of outputs:
•Channel1:four
•Channel2:three
Connectors: 75Ω BNC
Standard: AES-3id-1995 and SMPTE 276M
Return loss: >25 dB (0.1 to 6 MHz)
Intrinsic jitter: <6 ns
Performance
Sample rates: 32, 44.1, or 48 kHz
Delayed outputs:
•Minimum: 1.2 ms
•Maximum:510ms(127.5AESblocks)
Delay increments: One AES block (2 ms)
Indicators and Controls
Indicators: Input video present, input data rate, power
Controls: Delay – two 16-position rotary switches
8914 Dual AES/EBU Digital Audio Delay Distribution Amplifier
This module can be mounted in a GeckoFlex
frame when ordered with the 8900V-R GeckoFlex
Video rear module.
8914
Dual AES/EBU digital audio delay distribution amplifier
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular