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AudioScience ASI6722

PCI-E 2 record, 4/6 play/2 out, Analog&Digital, MPEG Layer2/3/PCM


The ASI6722 is a professional low profile PCI-Express sound card designed for use in radio broadcast automation. Providing up to 6 play streams that are mixed to 2 balanced stereo outputs and 4 record streams fed from 2 balanced stereo inputs, the ASI6722 feature AudioScience’s unique “anything to anywhere” mixing and routing. The ASI6722 provides both balanced analog and AES/EBU inputs and outputs. The maximum analog input and output level is +24dBu. A choice of uncompressed PCM, MPEG layer 2 and MP3 is available for both recording and playback. All compression is handled by an on-board floating point DSP, allowing the host computer to focus on other tasks. Functionality includes MRX multi-rate mixing technology which allows streams of different sample-rates and formats to be mixed digitally. TSX time scaling allows compression/expansion of any or all playback streams in real time with no change in pitch. For emerging surround sound applications, SSX2 mode allows multichannel streams of up to 8 channels to be played, recorded and mixed.

Main Features:
• 4 or 6 stereo/mono streams of playback into 2 stereo outputs
• 4 stereo or 8 mono streams of record from 2 stereo inputs
• PCM, MPEG-L2 and MP3 formats with sample rates to 96kHz
• MRX technology supports mixing of multiple formats and rates
• TSX time scaling by up to +/-20%
• SSX2 mode for multichannel record, playback and mixing
• Balanced stereo analog I/O with levels to +24dBu
• 24bit ADC and DAC with 110dB DNR and 0.0015% THD+N
• AES/EBU I/O with sample rate converters on all inputs
• Dedicated AES/EBU and Word clock Sync input
• Low profile short length PCI card format (6.6 inches/168mm)
• Up to 8 cards in one system
• Windows and Linux software drivers available

• Type: Balanced
• Connector: 68pin VHDCI
• Input Level: -10 to +24dBu in 0.5dBu steps
• Input Impedance: 10K ohms
• A/D converter: 24bit Over sampling
• Output Level: -10 to +24dBu in 0.5dBu steps
• D/A converter: 24bit Over sampling
• Output Impedance: 50ohms
• Load Impedance: 600ohms or greater
• Dynamic Range: >=110dB (record or play)
• THD+N: =<-96dB (0.0015%) (record or play)
• Frequency Response: 20Hz to 20kHz +0/-0.1dB and 20Hz to 40kHz +0/-3dB
• Inter-channel Phase: <0.1 degrees (record or play)
• Inter-channel Crosstalk: >110dB (record or play)
• Type: AES/EBU (EIAJ CP-340 Type I / IEC-958 Professional)
• Input/Output Impedance: 110 ohms
• Connector: 68pin VHDCI
• Sample Rates: 32, 44.1, 48, 88.2, and 96kHz with sample rate converters on inputs
• Internal (Adapter): 32, 44.1, 48, 88.2, and 96kHz
• AES/EBU Sync In: 32, 44.1, 48, 88.2, and 96kHz on dedicated AES/EBU input
• Word In/Out: 32, 44.1, 48, 88.2, and 96kHz
• DSP: Texas Instruments TMS320DM8147 floating point DSP @ 600MHz
• Memory: 64MB
Audio Formats:
 • 8 bit unsigned PCM
 • 16 bit signed PCM
 • 32 bit floating point PCM
 • MPEG-1 Layer 2
 • MPEG-1 Layer 3 (MP3) (MPEG Layer-3 audio coding technology licensed from Fraunhofer IIS and THOMSON multimedia)
• Isolation: 2000VRMS
• Input Drive: 4mA typical with internal 5V supply and internal 1K current limiting resistor
• Isolation: 1500VRMS between relay contacts and coil
• Contact Rating: Up to 220VDC/250VAC and 2A, 60W maximum
• Bus: X1 PCI-Express.
• Dimensions: PCI half-height form factor – 5.4" x 2.75" x 0.6" (138mm x 70mm x 15mm)
• Weight: 8 oz (227g) max
• Operating Temperature: 0C to 70C
• Power Requirements: +3.3V@1.5A +12V @ 300mA
• Analog: CBL4022 (XLR) or CBL4004 (Centronics)
• AES/EBU+GPIO: CBL4122 (XLR) or CBL4104 (Centronics)

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