AAC-3390
I.R.T. Communications Pty Ltd | www.irtcommunications.com
Page 6 of 11
Revision 04
TECHNICAL SPECIFICATIONS
Inputs:
Analogue inputs:
Number
2 channels – one stereo pair.
Type
> 30 kΩ balanced analogue audio.
Input coupling
AC
Input level setting
+24 dBu for 0 dBFS digital signal.
Input connector
Removable screw terminal block and Krone LSE IDC in parallel.
Reference input:
Type
1 x 110 Ω balanced terminating;
and
1 x 75 Ω unbalanced terminating.
Selected by links on module PCB.
Format
AES3-1992 standard.
Input level
200 mVp-p minimum.
Input cable length
> 500 m Belden (8281).
> 200 m 110 Ω (AES digital high quality shielded pair).
Outputs:
AES/EBU:
Rear panel type ZAC-3390
2 x 75 Ω unbalanced >1 Vp-p.
or
Rear panel type ZAC-3391
2 x 110 Ω balanced >3 Vp-p.
Front panel monitoring
1 x 75 Ω unbalanced >1 Vp-p.
Format
AES3-1992 standard.
Performance:
Sample rate
48 kHz internal rate, or as set by external reference.
Output signal rise and fall times
< 20 ns.
Frequency response
+/-0.05 dB 20 Hz to 20 kHz.
THD + N
-95 dB, 20 Hz – 20 kHz @ -4 dBFS.
Inter-channel crosstalk
-100 dB (20 Hz – 20 kHz).
Linearity
+/-0.5 dB at –90 dBFS.
Power Requirements:
Voltage
28 Vac CT (14-0-14) or
±
16 Vdc
Power consumption
3.5 VA.
Connectors:
Unbalanced
BNC.
Balanced
Removable screw terminal blocks.
Other:
Temperature range
0 - 50° C ambient.
Mechanical
Suitable for mounting in IRT 19" rack chassis with input, output and power
connections on the rear panel.
Finish:
Front panel
Grey background, black lettering & red IRT logo.
Rear assembly
Detachable silk-screened PCB with direct mount connectors to Eurocard and
external signals.
Dimensions
6 HP x 3 U x 220 mm IRT Eurocard.
Due to our policy of continuing development, these specifications are subject to change without notice.
