Orban Optimod-FM 8500 Digital Audio Processor

Technical indicators

* Frequency response ( bypass mode ; analog processing and transmission chain ) : According to ± 0.10 dB, 2.0 Hz - 15 kHz standard 50 μs or 75 μs pre-emphasis arc executive , left / right output and digital output can be user configured as level output or pre-emphasis output.

* Sampling frequency : 64 kHz to 512 kHz, depending on the processing may be.

* Noise: Noise baseline output gain settings based on the number of processors may be, the base will depend on the processor output noise gain setting ( excitation limit , AGC stimulate , inspire both the band and / or multi-band excitation ) , gate level , equalization and noise reduction , etc., and mainly consists of a set of dynamic range control to noise ratio of the 110dB of ultra- negative a / D converter , digital signal processing and dynamic range is 144dB.

* Total System Distortion : ( de-emphasis , 100% modulation )) <0.01% THD, 20 Hz - 1 kHz, 15 kHz when rising to <0.05%, <0.02% SMPTE IM distortion.

Total System Audio separation :> 55 dB, 20 Hz - 15 kHz; typically 60 dB.

* Polarization ( dual-band and bypass modes ) : maintain absolute polarity. Input port output port corresponding to the anode of the anode signal signal .

Delay

* FM analog processing delay can be removed : 16.2 seconds ( maximum ) when the sampling frequency is 64kHz increments single sample can be adjusted to allow a delay and receiver HD Radio system analog and digital output terminal adaptation path .

* Minimum processing delay : processing structure in accordance with the circumstances. Standard 5-band delay is typically 17ms, 5 -band low latency is 13ms, 5 -band delay is over 3ms, depending on the selected cross structure , the two -band delay is 17 or 22ms. Depending on the selected cross- structured.

Analog audio input

* Configuration: Stereo

* Impedance :> 10 k Ω load impedance , electronically balanced . ( There is no jump when 600 Ω function selected in the I / O module has perforated pads , so that users install the 600 Ω termination. )

* Rated input level: from -4.0 to adjust to +13.0 dBu (VU) through software

* Maximum input level : +27 dBu

* l Connection: two XLR -type ports, negative , EMI suppression. Pin 1 chassis wire , pin 2 ( + ) , pin 3 electronically balanced , floating and symmetrical .

* A / D Conversion: 24 bit 128x sample rate delts sigma linear phase anti-aliasing filter.

* Filtering : RFI filtering, high-pass filter with 0.15Hz

Analog audio output

* Configuration: Stereo . Flat or pre-emphasized (at 50 μs or 75 μs),, selected by software . The output can be independently set to emit the analog FM signal processing, delay diversity processing the analog FM signal , or a digital radio signal processing latency monitoring signal .

* Sounds Impedance : 50 ohms , electronically balanced floating

* Load Impedance : 600 Ω or greater , balanced or unbalanced . Does not require a terminal , or by recommendation.

* Output Level : ( 100% peak modulation ) can adjust from -6 dBu to +24 dBu peak , 600 Ω or greater load can be adjusted through software .

* SNR : ≥ 90 dB, unweighted ( Bypass mode, de-emphasized , 20 Hz - 15 kHz wideband , referenced to 100 % modulation ) .

* Crosstalk : ≤ -70 dB, 20 Hz - 15 kHz.

* Distortion : ≤ 0.01% THD ( Bypass mode, de-emphasis ) 20 Hz - 15 kHz wideband

* Connection: two XLR -type male connector , EMI limits. Pin 1 chassis ground, pins 2 ( + ) , pin 3 electronically balanced , floating and symmetrical .

* A / D Conversion: 24 bit 128x oversampling

* Filtering : RFI filter

Digital audio input

* Configuration: to AES3 standard stereo , 24-bit resolution, stereo software selection , from left channel mono playback, playback right channel mono or full channel mono playback.

* Sampling frequency : automatic selection 32 , 44.1 , 48, 88.1 and 96Hz.

* Connection: two XLR type connectors , positive , EMI suppression, Pin 1 chassis ground, pins 2 ( + ) , pin 3 transformer balanced and floating , 110 Ω impedance.

* Enter the basic level : changes in the range of -30 dBFS to -10 dBFS

* J.17 De- De-emphasis : software selection

* Filtering : RFI filter

Digital Audio Output

* Preparation : two outputs, each with AES3 stereo are standard . The output can be independently set to emit the analog FM signal processing, delay diversity processing the analog FM signal , or a digital radio signal processing latency monitoring signal . FM signal processing in software can be configured for flat or pre-emphasis to select pre-emphasis processing (50 μs or 75 μs). If desired, each of the output pre-emphasis can be applied J.17 .

* Sampling Frequency : software selection to 32 kHz, 44.1 kHz, 48 kHz, 88.1 kHz or 96 kHz internal free running . Depending on the software configuration can also be synchronized to 32 kHz, 44.1 kHz, 48 kHz, 88.1 kHz and 96 kHz AES3 sync input or AES3 digital input.

* Word Length : Software Select 24 , 20, 18 , 16 or 14 -bit resolution. Qualcomm may be increased noise type wave flutter , the level of which can be adjusted automatically according to the word length .

* Connection: two XLR -type female port , EMI suppression. Pin 1 chassis wire , pin 2 ( + ) , pin 3 power transformer balanced and floating , 110 Ω impedance

* Output Level ( 100% peak modulation ) : software control from -20.0 to 0.0 dBFS.

* Through the transmission of digital radio processing chain Frequency Response: For output sampling rate of 44.1kHz or more , from the input to the output of the frequency response of DR configuration is ± 0.10 dB, 2.0 Hz - 20 kHz; unchanged or with J. 17 pre-emphasis . The user can specify a low- pass filter bandwidth constraint to 15, 16, 17, 18 or 19 kHz.

* FM and HD output relative time delay between : Analog FM processing chain with respect to the processing chain for digital broadcasting output delay can be up to 16.2 seconds ( can be adjusted to increase the range of values within 15.6ms ) FM and DR process chain relative Once set the delay , the process of how the preset using either the delay remains constant.

* Filtering : RFI filter

Digital synchronization input

* Configuration: used to make either or both AES3 signals with the same signal at the input of an external reference .

* Sampling frequency : automatic selection 32 , 44.1 , 48, 88.1 and 96Hz.

* Connection: two XLR -type female port , EMI suppression. Pin 1 chassis wire , pin 2 ( + ) , pin 3 electronically balanced , floating , 110 Ω impedance

* Filtering : RFI filter

Composite baseband output

Configuration: two each with independent software controls the output level control , output amplifier output ports and connectors . * Audio Impedance: Jumper selectable 0 -volt source or 75 Ω, the end of the single-ended , floating in the chassis ground

* Load Impedance : 37 Ω or greater , no terminals, or as recommended

* Maximum Output Level : +12.0 dBu (8.72 Vp-p).

* The minimum output level : For a resolution of 0.5 dB adjustment -12 dBu (0.55 Vp-p)

* Pilot level : software control , adjustable from 6.0% to 12.0

* Pilot Stability : 19 kHz, ± 0.5 Hz (10 to 40 ° C).

* D / A -conversion : 24 bit

* SNR : ≤ -85 dB, ( Bypass mode, de-emphasized , 20 Hz - 15 kHz wideband , referenced to 100 % modulation , unweighted ) .

* Distortion : ≤ 0.02% THD ( Bypass mode, de-emphasized , 20 Hz - 15 kHz wideband , referenced to 100 % modulation , unweighted ) .

* Stereo separation: 100 % modulation = 3.5 Vp-p,> 60 dB, 30 Hz - 15 kHz. Modulation = 1.0 - 8.0 Vp-p,> 55 dB, 30 Hz - 15 kHz.

* Linear Crosstalk : ≤ -80 dB, main frequency bands or sub- bands to the secondary to the primary frequency ( referenced to 100 % modulation )

* Nonlinear Crosstalk : ≤ -80 dB, main frequency bands or sub- bands to the secondary to the primary frequency ( referenced to 100 % modulation )

* 8 kHz band suppression : ≥ 70 dB ( referenced to 100 % modulation )

* 76 kHz & frequency suppression : ≥ 80 dB ( referenced to 100 % modulation )

* Pilot Protection :-60db corresponding 9% pilot launch of ± 250 Hz ( up to 2dB composite driver )

* Load wave protection (60-100kHz) ≥ 70dB ( referenced to 100 % modulation , the composite limit driving up 2Db; using the peak value of the control limit of 800 linear separator measurement )

* 57 kHz (RDS / RBDS) Protection :-50dB corresponds to 4% subcarrier transmitter , ± 2.0 kHz ( composite handle driving up to 2dB)

* Large Load Capacitance : 0.047μF (0Ω source impedance ) . RG-59A / U cable should be up to 100 feet or 30 meters

* Connectors: Two BNC, floating in the chassis ground , EMI suppressed.

* Filtering : RFI filter

Subcarrier (SCA) Input

* Configuration: subcarrier input port blend composite baseband output port , and then with complex digital attenuator control connection .

* Impedance :> 600 Ω

* SCA sensitivity ( two inputs ) : from 220 mV pp to > 10 V pp to 10% reduction in emissions. Built-in PC platform dresser adjustable sensitivity.

* Connectors: Two BNC, floating in the chassis ground , EMI suppressed.

* 19 kHz pilot reference : SCA2 input jack can be connected across the 19 kHz to provide a pilot reference input or as a second SCA input port.

Remote Computer Interface

* Support of computers and operating systems : Run Microsoft Windows ® 2000 (SP3 or higher ), XP,

* Configuration: connection , a modem , or Ethernet TCP / IP protocol via direct cable control .

* Serial Connector : RS232 serial port (3) DB-9 connector, male, EMI suppressed. Serial connector 1 Use ppp, to provide direct or modem connection 8500PC remote control applications , the serial connector 2 to the computer or communications support remote control system via simple ASCII commands to manage and restore the default . The serial connector 3 is reserved for future use.

* Ethernet port : RJ45 female socket for use CAT5 cable 10-100 Mbps local frequency is 100Mbps, providing connection or direct connection to the computer via the network and remote PC 8500 devices .

* Ethernet standards : TCP / IP.

Remote Control Interface (GPI)

* Configuration: 8 outputs , optically isolated , floating

* Voltage : 6 - 15 V AC or DC, momentary or continuous voltage , 9 VDC interface provides easy operation.

* Connection : DB-25 male connector , EMI suppression

* Control : The user can program any of eight user presets , factory presets , bypass , test tone , stereo or mono mode, the analog input, digital output

Tally Output

* Configuration : NPN open collector

* The maximum voltage : 30 V DC, reverse polarity protection

* Maximum current : 30 mA

Power

* Voltage : 100 - 132 VAC or 200 - 264 VAC, switch on the rear panel to select ,50-60 Hz, 50 VA.

* Connection : IEC, EMI suppression. Provide detachable 3-wire power cord

* Ground : Ground line independent of chassis ground , can be separated from the rear panel control keys or assembled together

* Safety Standard : ETL certification system under standard UL , CE standards.

Environment

* Operating temperature : All operating voltage range of 32到122 ° F / 0 to 50 °

* Temperature : 0 - 5% RH, non- refrigerated

* Dimensions (W x H x D): 19 "x 5.25" x 15.5 "/ 48.3 cm x 13.34 cm x 39.4 cm display temperature indicates the penetration of the rack , front to back total depth is 17.75" / 45.1 cm , three racks high .

* RFI / EMI: Cenelec procedures performed in accordance with procedures

* Shipping Weight : 19 lbs / 8.7 kg