Analogue Audio; Digital Audio; Embedded Audio; Audio Routing - TANDBERG TT1260 Instruction Manual

B.3.2

Analogue Audio

The TT1260 supports level control of the audio outputs. Independent
control of each output of each stereo pair is provided via the User
Interface and remote interfaces.
Audio output connector type: 2 X 9 way female D-type
Output level: +18 dBm nominal clipping level. Selectable in range 12 to
+24 dBm.
Output impedance: 50 W (nominal).
Table B.5: Analogue Audio Performance Requirement
Parameter
Gain
Frequency response
Cross talk
Distortion
Noise
Phase
Lip sync delay
B.3.3

Digital Audio

Maximum data rate: 3.072 Mbit/s.
·
EBU Tech. 3250 Specification of the digital audio interface (the
AES/EBU interface), 2nd Edition 1992
·
AES Recommended Practice for Digital Audio Engineering – Serial
transmission format for two-channel linearly represented digital audio
data (Revision of AES3-1985, ANSI S4.40-1985)[1999-02-10 printing]
·
ANSI S4.40 – 1992 Recommended Practice for Digital Audio
Engineering – Serial Transmission Format for Two-Channel Linearly
Represented Digital Audio Data (AES 3)
B.3.4

Embedded Audio

Either or both of the stereo pairs selected for decoding by the Receiver can
be routed out via the SDI video output, as AES/EBU digital audio
embedded in the Ancillary Data Space, as defined in SMPTE 272M-1994.
The operational level of this standard supported is SMPTE 272M –A
(20-bit synchronous audio at sampling rates of 48kHz).
B.3.5

Audio Routing

The IRD supports the following routing of the stereo audio signal under
control of the User Interface and remote interfaces:
·
Normal stereo (left signal to left output, right signal to right output)
·
Left to both (left signal to left and right outputs)
Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Conditions
0 dBm input level
100 Hz - 15 kHz, 0 dBm input level
20 Hz - 20 kHz, 0 dBm input level
0 dB input level, 100 Hz
0 dB input level, 1 kHz
0 dB input level, 10 kHz
+8 dBm input level, 100 Hz
+8 dBm input level, 6.3 kHz
RMS
40 Hz to 15 kHz
Depends on synchroniser configuration
Technical Specification
Limit
±1 dB
±0.2 dB
+0.5 dB, -1 dB
-80 dB
-70 dB
-60 dB
-70 dB
-70 dB
-65 dB
±2°
±2ms
Page B-7