6-2
TECHNICAL DATA
ORBAN MODEL 9300
High-Pass Filter:
Constrained by user settable fifth-order “quasi-elliptical” highpass filter to
50, 60, 70, 80, 90, or 100 Hz. All filters have equal-ripple (Chebychev-like) passbands
and a 25 Hz notch for transmitter protection.
Channel Configuration:
Processing is monophonic.
Installation
Analog Audio Input
Configuration:
Stereo (Configurable to drive the processing selection with mono from left,
mono from right, or mono from sum).
Impedance:
>10k
load impedance, electronically balanced
.
Nominal Input Level:
Software adjustable from –4.0 to +13.0 dBu (VU).
Maximum Input Level:
+27 dBu.
Connectors:
Two XLR-type, female, EMI-suppressed. Pin 1 chassis ground, Pins 2 (+) and
3 electronically balanced, floating and symmetrical.
A/D Conversion:
24 bit 128x oversampled delta sigma converter with linear-phase anti-
aliasing filter. Converter outputs 64 kHz sample rate, which the 9300 then decimates to
32 kHz in DSP using an ultra-high-quality image-free synchronous sample rate con-
verter.
Filtering:
RFI filtered, with high-pass filter at 0.15 Hz (–3 dB).
Analog Audio Output
Configuration:
Two monophonic outputs, capable to driving two transmitters. The two out-
puts have independent level controls.
Source Impedance:
351
(includes the third-order output EMI suppression network), elec-
tronically balanced and floating. The user can specify the output impedance in software
to calibrate the output level accurately into a bridging or 600
load.
Load Impedance:
600
or greater, balanced or unbalanced. Termination not required or
recommended.
Output Level
(100% peak modulation): Adjustable from –6 dBu to +24 dBu peak, into 600
or greater load, software-adjustable.
Polarity:
When the P
OLARITY
control (located in the active System Preset) is set to P
OSITIVE
,
a positive-going signal at pin 2 of the XLR-type connector corresponds to positive modu-
lation.
Signal-to-Noise:
>= 90 dB unweighted (Bypass mode, de-emphasized, 20 Hz–9.5 kHz
bandwidth, referenced to 100% modulation).
Distortion:
<= 0.01% THD (Bypass mode, de-emphasized) 20 Hz–9.5 kHz bandwidth.
Connectors:
Two XLR-type, male, EMI-suppressed. Pin 1 chassis ground, Pins 2 (+) and 3
electronically balanced, floating and symmetrical.
D/A Conversion:
24 bit 128x oversampled.
Filtering:
RFI filtered.
1
No jumper selection available for 600
. Through-hole pads are available on I/O module for user-
installed 600
termination.
Summary of Contents for OPTIMOD-AM 9300
Page 1: ...Operating Manual OPTIMOD AM 9300 Digital Audio Processor Version 2 0 Software...
Page 7: ...Operating Manual OPTIMOD AM 9300 Digital Audio Processor Version 2 0 Software...
Page 178: ...3 46 OPERATION ORBAN MODEL 9300...
Page 200: ......
Page 221: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 21...
Page 222: ...6 22 TECHNICAL DATA ORBAN MODEL 9300 CONTROL BOARD PARTS LOCATOR...
Page 228: ...6 28 TECHNICAL DATA ORBAN MODEL 9300...
Page 229: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 29 I O DSP BOARD LEFT AND RIGHT ANALOG INPUTS...
Page 230: ...6 30 TECHNICAL DATA ORBAN MODEL 9300 I O DSP BOARD ANALOG OUTPUTS...
Page 231: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 31...
Page 238: ...6 38 TECHNICAL DATA ORBAN MODEL 9300 FRONT VIEW REAR VIEW FRONT PANEL PARTS LOCATOR DIAGRAM...