Certain specifications are presented here to assure the engineer that they are reasonable, to help plan the installation, and make certain comparisons with other processing equipment.
Performance
Specifications apply for measurements from analog left/right input to stereo composite output and to FM analog left/right output.
Frequency Response (Bypass Mode;
Analog Processing Chain): Follows
standard 50µs or 75µs pre-emphasis curve
±0.10 dB, 2.0 Hz - 15 kHz. Analog left/right
output and Digital output can be user
configured for flat or pre-emphasized
output.
Sample Rate: 64 kHz to 512
kHz, depending on processing being
performed.
Noise: Output noise floor
will depend upon how much gain the processor
is set for (Limit Drive, AGC Drive, Two-Band
Drive, and/or Multi-Band Drive), gating
level, equalization, noise reduction, etc.
It is primarily governed by the dynamic
range of the A/D converter, which has a
specified over-load-to-noise ratio of 110
dB. The dynamic range of the digital signal
processing is 144 dB.
Total System Distortion
(de-emphasized, 100% modulation):
<0.01% THD, 20 Hz - 1 kHz, rising to <0.05%
at 15 kHz. <0.02% SMPTE IM Distortion.
Total System Separation:
>55 dB, 20 Hz - 15 kHz; 60 dB typical.
Polarity (Two-Band and Bypass
Modes): Absolute polarity
maintained. Positive-going signal on input
will result in positive-going signal on
output.
Installation
Delay
Defeatable Analog FM Processing
delay: 16.2 seconds (maximum),
adjustable in one-sample increments at 64
kHz sample rate to allow the delays of the
analog and digital paths in the HD Radio
system to be matched at the receiver output.
Minimum Processing Delay:
Processing structure dependent. Typically 17
ms for normal latency 5-band, 13 ms for
low-latency 5-band, 3 ms for
ultra-low-latency 5-band, and 17 or 22 ms
for 2-band, depending on crossover structure
chosen.
Analog Audio Input
Configuration: Stereo.
Impedance: >10kΩ load
impedance, electronically balanced .
Nominal Input Level:
Software adjustable from -4.0 to +13.0 dBu
(VU).
Maximum Input Level: +27
dBu.
No jumper selection available for 600Ω.
Through-hole pads are available on I/O
module for user-installed 600Ω termination.
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.
Filtering: RFI filtered,
with high-pass filter at 0.15 Hz.
Analog Audio Output
Configuration: Stereo.
Flat or pre-emphasized (at 50 microseconds
or 75 microseconds), software-selectable.
Source Impedance: 50Ω,
electronically balanced and floating.
Load Impedance: 600Ω or
greater, balanced or unbalanced. Termination
not required, or recommended.
Output Level (100% peak modulation):
Adjustable from -6 dBu to +24 dBu peak, into
600Ω or greater load, software-adjustable.
Signal-to-Noise: >= 90 dB
unweighted (Bypass mode, de-emphasized, 20
Hz –- 15 kHz bandwidth, referenced to 100%
modulation).
Crosstalk: < -70 dB, 20
Hz–15 kHz.
Distortion: < 0.01% THD
(Bypass mode, de-emphasized) 20 Hz–15 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.
Digital Audio Input
Configuration: Stereo
per AES3 standard, 24 bit resolution,
software selection of stereo, mono from
left, mono from right or mono from sum.
Sampling Rate: 32 kHz, 44.1
kHz, 48 kHz, 88.1 kHz, and 96 kHz
automatically selected.
Connector: XLR-type,
female, EMI-suppressed. Pin 1 chassis
ground, pins 2 and 3 transformer balanced
and floating, 110 impedance.
Input Reference Level:
Variable within the range of -30 dBFS to -10
dBFS.
J.17 De-emphasis:
Software-selectable.
Filtering: RFI filtered.
Digital Audio Outputs
Configuration: Two
outputs, each stereo per the AES3 standard.
The outputs can be independently set to emit
the analog FM processed signal or the
low-delay monitor signal. The FM processed
signal can be configured in software as flat
or pre-emphasized to the chosen processing
pre-emphasis (50µs or 75µs). Each output can
apply J.17 pre-emphasis if desired.
Sample Rate: Internal free
running at 32 kHz, 44.1 kHz, 48 kHz, 88.1
kHz, or 96 kHz, selected in software. Can
also be synced to the AES3 SYNC input or the
AES3 digital input at 32 kHz, 44.1 kHz, 48
kHz, 88.1 kHz, and 96 kHz, as configured in
software.
Word Length: Software
selected for 24, 20, 18, 16 or 14-bit
resolution. Optionally, first-order highpass
noise-shaped dither can be added; dither
level is automatically adjusted
appropriately for the word length.
Connector: XLR-type, male,
EMI-suppressed. Pin 1 chassis ground, pins 2
and 3 transformer balanced and floating,
110Ω impedance.
Output Level (100% peak modulation):
-20.0 to 0.0 dBFS software controlled.
Filtering: RFI filtered.
Digital Sync Input
Configuration: Used for
synchronization of either or both AES3
signals to an external reference provided at
this input.
Sampling Rate: 32 kHz, 44.1
kHz, 48 kHz, 88.1 kHz, and 96 kHz,
automatically selected.
Connector: XLR-type,
female, EMI-suppressed. Pin 1 chassis
ground, Pins 2 and 3 transformer balanced
and floating, 110Ω impedance.
Filtering: RFI filtered.
Composite Baseband Output
Configuration: Two
outputs, each with an independent
software-controlled output level control,
output amplifier and connector.
Source Impedance: 0 voltage
source or 75Ω, jumper-selectable.
Single-ended, floating over chassis ground.
Load Impedance: 37Ω or
greater. Termination not required or
recommended.
Maximum Output Level: +12.0
dBu (8.72 Vpp).
Minimum Output Level: -12
dBu (0.55 Vpp) for 0.5 dB adjustment
resolution.
Pilot Level: Adjustable
from 6.0% to 12.0%, software controlled.
Pilot Stability: 19 kHz,
±0.5 Hz (10 degrees to 40 degrees C).
D/A Conversion: 24-bit
Signal-to-Noise Ratio: <=
-85 dB (Bypass mode, de-emphasized, 20 Hz -
15 kHz bandwidth, referenced to 100%
modulation, unweighted).
Distortion: <= 0.02% THD
(Bypass mode, de-emphasized, 20 Hz - 15 kHz
bandwidth, referenced to 100% modulation,
unweighted).
Stereo Separation: At 100%
modulation = 3.5Vpp, > 60 dB, 30 Hz - 15
kHz. At 100% modulation = 1.0 - 8.0 Vpp, >
55 dB, 30 Hz - 15 kHz.
Crosstalk-Linear: <= -80
dB, main channel to sub-channel or
sub-channel to main channel (referenced to
100% modulation).
Crosstalk-Non-Linear: <=
-80 dB, main channel to sub-channel or
sub-channel to main channel (referenced to
100% modulation).
38 kHz Suppression: >= 70
dB (referenced to 100% modulation).
76 kHz & Sideband Suppression:
>= 80 dB (referenced to 100% modulation).
Pilot Protection: -60 dB
relative to 9% pilot injection, ±250 Hz (up
to 2 dB composite limiting drive).
Subcarrier Protection (60-100 kHz):
>= 70 dB (referenced to 100% modulation;
with up to 2 dB composite limiting drive;
measured with 800 line FFT analyzer using
"maximum peak hold" display).
57 kHz (RDS/RBDS) Protection:
-50 dB relative to 4% subcarrier injection,
±2.0 kHz (up to 2 dB composite processing
drive).
Connectors: Two BNC,
floating over chassis ground, EMI
suppressed.
Maximum Load Capacitance:
0.047µF (0Ω source impedance). Maximum cable
length of 100 feet / 30 meters
RG-58A/U.
Filtering: RFI filtered.
Subcarrier (SCA) Inputs
Configuration:
Subcarrier inputs sum into composite
baseband outputs before digitally controlled
composite attenuator.
Impedance: >600Ω
SCA Sensitivity (Both Inputs):
Variable from 220 mV pp to >10 V pp to
produce 10% injection. Sensitivity is
adjustable by an internal PC-board-mounted
trim pot.
Connectors: Two BNC,
unbalanced and floating over chassis ground,
EMI suppressed.
19 kHz Pilot Reference:
SCA2 input jack can be jumpered to provide a
19 kHz pilot reference output or to serve as
a second SCA input.
Remote Computer Interface
Supported Computer and Operating
System: IBM-compatible PC running
Microsoft Windows® 2000 (SP3 or higher) or
XP.
Configuration: TCP/IP
protocol via direct cable connect, modem, or
Ethernet interface. Suitable null modem
cable for direct connect is supplied. Modem
and other external equipment is not
supplied.
Serial Connectors: RS-232
port (3) DB-9 male, EMI-suppressed. Serial
Connector 1 uses PPP to provide for direct
or modem connection to the 8500 PC Remote
application. Serial Connector 2 supports
communication to a computer or remote
control system via simple ASCII commands for
administration and recalling presets. Serial
Connector 3 is reserved for future
developments.
Ethernet Connector: Female
RJ45 connector for 10-100 Mbps networks
using CAT5 cabling. Native rate is 100 Mbps.
Provides for connection to the 8500 PC
Remote application through either a network,
or, using a crossover Ethernet cable,
directly to a computer.
Ethernet Networking Standard:
TCP/IP.
Remote Control (GPI) Interface
Configuration: Eight (8)
inputs, opto-isolated and floating.
Voltage: 6 - 15V AC or DC,
momentary or continuous. 9VDC provided to
facilitate use with contact closure.
Connector: DB-25 male,
EMI-suppressed.
Control: User-programmable
for any eight of user presets, factory
presets, bypass, test tone, stereo or mono
modes, analog input, digital input.
Filtering: RFI filtered.
Power
Voltage: 100-132 VAC or
200-264 VAC, switch-selected on the rear
panel, 50-60 Hz, 50 VA.
Connector: IEC,
EMI-suppressed. Detachable 3-wire power cord
supplied.
Grounding: Circuit ground
is independent of chassis ground' can be
isolated or connected with a rear panel
switch.
Safety Standards: ETL
listed to UL standards, CE marked.
Environmental
Operating Temperature:
32 to 122 F / 0 to 50 C for all operating
voltage ranges.
Humidity: 0-95% RH,
non-condensing.
Dimensions (W x H x D): 19"
x 1.75" x 14.25" / 48.3 cm x 4.4 cm x 36.2
cm. One rack unit high.
Humidity: 0-95% RH,
non-condensing.
RFI / EMI: Tested according
to Cenelec procedures. FCC Part 15 Class A
device.
Shipping Weight: 19 lbs /
8.7 kg
Warranty
Two Years, Parts and Service: Subject to the limitations set forth in Orban's Standard Warranty Agreement.
