GRASS VALLEY 8916 Datasheet

10 8916 AES/EBU Autotracking Digital Audio Delay DA
Key Features
• Up to 1/2 second delay in 2 ms
increments
• Auto-tracks frame sync delays (8900FSS,
8981FS)
• Seven outputs
• Remote control via Ethernet frame I/F
Specifications
Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module,
Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V
Power Rating
3.5 Watts – single slot
Inputs
Standard: AES-3id-1995 and SMPTE 276M
Connector: BNC differential loopthrough
Return loss: >25 dB (0.1 to 6 MHz) transformer
coupling on input eliminates common mode noise
Outputs
Standard: AES-3id-1995 and SMPTE 276M
Number of outputs: Seven
Connector: 75Ω BNC
Return loss: >25 dB (0.1 to 6 MHz)
Intrinsic jitter: <6 ns
The 8916 delays digital audio to adjust for
lip sync errors. Lip sync specifications are
usually expressed as +1/-2 video frames of
audio leading/lagging video. Because human
perception tolerates audio lagging better than
audio leading video, the specification is looser
for audio lag. The 8916 offers tremendous
flexibility with two forms of delay that are
summed—a fixed delay of up to 0.5 seconds
and a variable delay based on the signal input
from one of our video frame synchronizers.
Key applications include adjusting for a large
fixed lip sync error while continuously adjusting
audio delay to match video delay created from
a video frame sync.
AES
AES 1
RX
Loopthrough
Fixed Delay
Controls
Variable Delay
(from frame sync
RS-232 data)
Performance
Sample rates: 32 kHz, 44.1 kHz, 48 kHz
Delayed outputs:
• Minimum: 3 ms @ 32 kHz, 2 ms @ 44.1 and
48 kHz
• Maximum: 510 ms
Delay increments: 2 ms
Operating temperature: 0° to 45°C
Humidity range: 0% to 90% non-condensing
Indicators and Controls
Indicators: Input signal present, input data rate, fault,
tracking, power, communication active
Controls: Output delay
Remote: All indicators and controls via frame Ethernet
8900V-R
J1 J2
J3 J4
AES/EBU
Outputs
J5 J6
J7 J8
Delay From
Frame Sync
J9 J10
Loopthru
Ancillary
Data
AES
Processor
TX
Delay
Controller
LEDs
Remote
Ordering Information
This module can be mounted in a GeckoFlex
frame when ordered with the 8900V-R GeckoFlex
Video rear module.
8916
AES/EBU autotracking digital audio delay distribution
amplifier
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular
AES/EBU
Outputs
AES/EBU
Input
AES/EBU