CobraNet Audio Networking Processor Series

With CobraNet® technology, Audio manufacturers can now easily incorporate digital audio networking technology into their product designs. CobraNet technology from Cirrus Logic is available in the new CS1810xx Silicon Series, featuring three highly integrated ICs that provide 2, 8 or 16 simultaneous channels of audio input and output at either 48 kHz or 96 kHz sample rates. The Silicon Series includes the key CobraNet circuitry needed to integrate high-quality, cost-effective audio networking capability into a wide range of products. The CS1810xx provides multiple 16-, 20- or 24-bit audio connections across an Ethernet network. In fact, two-way audio control and monitoring is possible at any point along the network. In conjunction with an external VCXO, the ICs deliver a studio-grade, low-jitter clock source and the CS1810xx also supports dual-Ethernet connections for mission-critical applications. Featuring a high-speed parallel host port interface, the CS1810xx allows optional connection to a host processor as well as offering Ethernet-based control, monitoring and management via industry standard SNMP. Firmware can be easily updated over Ethernet using TFTP or via the host interface. Additional control and monitoring functions are also provided by the innovative, built-in Asynchronous or packet-bridge functions. Available on low-cost ICs without expensive licensing or royalty fees, the de-facto industry standard CobraNet technology can be easily integrated into new and existing networked-audio applications. Examples of these applications include facility audio distribution, paging stations, power amplifiers, intercoms, audio snakes, signal processors, mixing consoles, self-powered loudspeakers, ceiling speakers, microphone pre-amplifiers, media servers and stand-alone A/D and D/A interfaces.

Features

  • Silicon Series supports 2, 8 or 16 bi-directional audio channels
  • Reduces power consumption
  • Reduces cost
  • Reduces design effort
  • Supports 96 and 48 kHz sampling rates
  • Selectable latency of 1.33, 2.66 or 5.33 ms across network
  • 32-bit synchronous serial digital audio I/O
  • Ethernet control
  • Parallel host control
  • Asynchronous serial control transport
  • Supports FLASH memories and Ethernet controllers
  • Complies fully with Power-Over-Ethernet (POE) standards
  • Supports low-jitter external audio clock oscillator
  • Available in 144-pin LQFP; lead-free assembly

Parametric Specifications

Processor Dual 32-bit
Per Core Speed (MIPS) 120
Serial Audio In 2 (CS181002)
8 (CS181012)
16 (CS181022)
Serial Audio Out 2 (CS181002)
8 (CS181012)
16 (CS181022)
Package 144 LQFP

Technical Documents

CobraNet Networked Digital Audio Technology

May 30, 2006, 0173-0506-PB : 786 Kb

CobraNet Programmer's Reference Manual

Feb 16, 2006, DS651PM25 : 873 Kb

CS1810xx Product Bulletin

Oct 6, 2004, 0090-1004-PB-LP : 136 Kb

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Comprehensive Solutions