Pci Audiodrive Notebook Solution Product Brief

THE ES1946 PCI AudioDrive solution implements a single-chip PCI Audio solution, providing high-quality Audio processing while maintaining full legacy DOS game compatibility. With a dynamic range over 80 dB, the ES1946 complies with the Microsoft PC 98 / PC 99 specifications and meets WHQL Audio requirements. The ES1946 forms a complete Audio subsystem on a single chip for notebook platforms. The ES1946 operates at 3.3V digital supply and 5V Analog supply. Combined with its built in Power Management support, the ES1946 is an ideal Audio solution for notebooks. The ES1946 includes an I 2 S Zoom Video port Interface that allows playback of MPEG Audio using the 16-bit stereo music DAC thus reducing the total Audio solution chip count. The ES1946 incorporates a Microcontroller ESFM music synthesizer, 16-bit stereo wave ADC and DAC 16-bit stereo music DAC MPU-401 UART mode serial port, I 2 S Zoom Video port, serial port Interface to external wavetable music synthesizer, dual game port, hardware master Volume Control direct memory access (DMA) control Logic with FIFO and PCI bus Interface Logic There are three stereo inputs (typically line- in, CD Audio and auxiliary line) and a mono Microphone input. The ES1946 also incorporates Spatializer VBX technology, provided by Desper Products, Inc., a subsidiary of Spatializer Audio Laboratories, Inc. This processor expands the stereo sound field emitted by two speakers to create a resonant 3D sound environment. The ES1946 integrates the ESS Technology field-proven hardware design for DOS game compatibility with hardware FM synthesis (ESFM synthesis) and three methods for legacy Audio control interface: PC PCI distributed DMA, and transparent DMA (TDMA). TDMA requires no sideband signals from PC core Logic chipsets in addition to the standard PCI 2.2 bus. TDMA is compatible with the Intel Pentium, Pentium II, and Celeron chipsets as well as standard PCI add-in cards. By Unkown
ES1946 's PackagesES1946 's pdf datasheet
ES1946S LQFP




ES1946 Pinout, Pinouts
ES1946 pinout,Pin out
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