Studio Technologies 76DBA V.3.00 - Manual (Page 49)

Model 76DBA/77B User Guide Issue 1, November 2010
Studio Technologies, Inc. Page 49
for Surround
Specifications
Model 76DBA Central Controller
General Audio:
Supported Sample Rates: 32, 44.1, 48, 88.2, 96,
176.4, and 192 kHz
Word Length: 24 bits maximum
Internal Processing: 32 bits
Input-to-Output Latency: one sample (e.g., 0.021
milliseconds @ 48 kHz sample rate)
Digital Audio Inputs: 5 (18 audio channels)
Configuration: two surround (5.1) and three stereo
Type: AES3id-2001/SMPTE 276M (unbalanced
75 ohms/1 Vpp)
Connectors: BNC (per IEC 60169-8 Amendment 2)
Sample Rate Conversion (SRC):
Application: available on Stereo Input C
Input Sample Rate Range: 8 to 216 kHz, limited
to 1/6 to 6 times the output sample rate
Latency: 1 millisecond, nominal
Sync Source: configured to follow L/R of currently
selected input or signal connected to sync input
Sync Input:
Compatible Sources: word clock, DARS (AES11),
bi-level video, tri-level video
Jitter: 4 ns pp maximum
Connector: BNC (per IEC 60169-8 Amendment 2)
Termination: 75 ohms, selectable on/off
Digital Monitor Outputs: 16 (8 pairs)
Configuration: organized as two surround (5.1),
one auxiliary stereo, and one stereo input C direct
Dynamic Range: >135 dB
Type: AES3 (110 ohms/5 Vpp) or AES3id/SMPTE
276M (75 ohms/1 Vpp), selectable
Connector: 25-pin D-subminiature female (DB-25F)
Analog Monitor Outputs: 8
Configuration: organized as one surround (5.1)
and one auxiliary stereo
Type: electronically balanced, source impedance
200 ohms
Nominal Level: +4.0 dBu @ –20 dBFS input source
and level control at maximum setting
Maximum Level: +24 dBu into 2000 (2 k) ohms or
greater
Frequency Response, Digital Inputs to Analog
Monitor Outputs: 10 Hz-20 kHz +0.0/–0.3 dB @
48 kHz sample rate; –3 dB @ 64 kHz
Distortion (THD+N): 0.004%, ref 1 kHz, +4 dBu
output
S/N Ratio: 89 dB, ref +4 dBu output
Dynamic Range: greater than 109 dB
Crosstalk: 98 dB at 1 kHz; 97 dB at 16 kHz,
ref –1 dBFS input
Connector: 25-pin D-subminiature female (DB-25F)
Configurable Delay: 0 to 340 milliseconds @
48 kHz sample rate (scales up or down depending
on actual sample rate)
Downmix:
Functions: 5.1 to stereo, stereo to mono
5.1 to Stereo: LS @ –3 dB summed with L
RS @ –3 dB summed with R
C @ –6 dB summed with L and R
LFE @ –6 dB summed with L and R (if enabled)
C, LFE, LS, and RS monitor outputs mute
Stereo to Mono: L @ –3 dB summed with R
@ –3 dB to C
L, R, LS, RS, and LFE monitor outputs mute (for a
surround input this results in the C output being the
sum of L @ –3 dB, R @ –3 dB, C @ –3 dB, LFE @
–3 dB (if enabled), LS @ –6 dB, and RS @ –6 dB)
Control Console Interface:
Type: RS-485, 115.2 Kbit/s, 8-1-N
Polling Interval: 50 milliseconds
Power: 12 volts DC, 500 milliamperes maximum
Connector: 9-pin D-subminiature female (DE-9F)
Dolby E Metadata Input:
Type: RS-485/RS-422
Data Rate/Format: 115.2 Kbit/s, 8-N-1
Connector: 9-pin D-subminiature female (DE-9F),
shared with remote control inputs
Remote Control Inputs: 3
Functions: remote mute all, remote dim, remote
auxiliary stereo monitor output on/off
Type: +5 V logic, activates on closure to system
common
Connector: 9-pin D-subminiature female (DE-9F),
shared with metadata input