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The CS4624 is a high-performance, 128-pin, PCI audio accelerator. With the added legacy compatibility modes, the CS4624 enables real mode DOS compatibility within PCI-only audio subsystems. This device, combined with application and driver software, provides a complete system solution for hardware acceleration of Windows 95™ DirectSound, DirectSound3D®, DirectInput™, and wavetable synthesis. WDM drivers provide support for Windows 98 and Windows 2000™, and XP™. The CS4624 is based on the Cirrus Logic Stream Processor (SP) DSP core. The SP core is optimized for digital audio processing and is powerful enough to easily handle complex signal processing tasks. The SP core is supported by a bus mastering PCI interface and a built-in dedicated DMA engine with hardware scatter/gather support. These support functions ensure extremely efficient transfer of audio data streams to/from host-based memory buffers, providing a system solution with maximum performance and minimal host CPU loading.
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- AC `97 2.1 Link CODEC, PC 99, and PCI 2.1 compliant interface
- 255 MIPs SLIMD DSP architecture
- DirectSound® 3D positional audio with EAX and A3D positional standards and acoustic echo cancellation for NetMeeting™
- Unlimited-voice wavetable synthesis with effects, + DLS and 10-band graphic equalization
- 4-channel output capability
- High-quality hardware sample rate conversion (90+ dB)
- Legacy support for PC/PCI, DDMA, and CCLS
- 96-stream DMA interface with hardware scatter/gather
- Secondary AC `97 1.0/2.1 link CODEC interface for multi-channel and digital docking support
- Asynchronous digital serial interface (ZV port)
- S/PDIF digital input and output interfaces (PCM, AC3 5.1)
- MPU-401 MIDI input/output interface
- 3.3V power supply (5V tolerant I/O)
- Package: 128-pin TQFP
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