Grass Valley M-Series iVDR User Manual v.2.0.10 - Manual (Page 303)

20 April 2005 M-Series User Manual 303
System Timing
System Timing
AES/EBU Digital Audio
Analog Audio
Characteristics Description a
a.
All delay values shown are relative to Black Reference.
Nominal Playback Output Delay Adjustable
(Default: Zero timed to reference)
Output Delay Range
(Independent for each play
channel) Frames – NTSC 0 to +1 frames,
PAL 0 to +3 frames
Lines – NTSC (525 lines) 0 to +524 lines,
PAL (625 lines) 0 to +624 lines.
Samples – NTSC (525 lines) 0 to +1715 clock samples,
PAL (625 lines) 0 to +1727 clock samples.
Analog sub-pixels (SC) b – (analog video only). Range is
slightly more than one sample clock period.
b. Output delay adjustments affect the SDI and composite analog outputs together. The analog sub-pixel
adjustment is only a “fine” trim on the composite output with respect to the current SDI timing.
Nominal E to E Output Delay NA
(E to E is provided for monitoring purposes only, not intended as a
program switch.)
Parameter Specification
Standard SMPTE 276M-1995
Audio Inputs 4 channels per record channel; two channels per BNC connector; 16bit
pcm; 32/44.1/48KHz, locked and unlocked.
Audio Outputs 4 channels per play channel; two channels per BNC connector; all
audio outputs 16bit pcm, 48KHz sampled, locked to a common video
output clock.
Input Impedance 75 ohms, unbalanced
Parameter Specification
Audio Standard Balanced differential analog
Audio Inputs 2 per record channel, Female XLR
Audio Outputs 2 per play channel, Male XLR
Impedance Input: 15k ohms, balanced
Output: 50 ohms per side, balanced
Sampling and encoding 48 KHz and 16-bit pcm