PRODUCT OVERVIEW
●The AD1819B SoundPort Codec is designed to meet all requirements of the Audio Codec ’97, Component Specification, Revision 1.03, © 1996, Intel Corporation, found at www.Intel.com. In addition, the AD1819B supports multiple codec configurations (up to three per AC-Link), a DSP serial mode, variable sample rates, modem sample rates and filtering, and built-in Phat Stereo 3D enhancement.
●The AD1819B is an analog front end for high performance PC audio, modem, or DSP applications. The AC’97 architecture defines a 2-chip audio solution comprising a digital audio controller, plus a high quality analog component that includes Digital-to-Analog Converters (DACs), Analog-to-Digital Converters (ADCs) mixer and I/O.
●The main architectural features of the AD1819B are the high quality analog mixer section, two channels of Σ∆ ADC conversion, two channels of Σ∆ DAC conversion and Data Direct Scrambling (D2S) rate generators. The AD1819B’s left channel ADC and DAC are compatible for modem applications supporting irrational sample rates and modem filtering requirements.
●AC’97 FEATURES
● Fully Compliant AC’97 Analog I/O Component
● 48-Terminal LQFP Package
● Multibit SD Converter Architecture for Improved S/N Ratio >90 dB
● 16-Bit Stereo Full-Duplex Codec
● Four Analog Line-Level Stereo Inputs for Connection from LINE, CD, VIDEO, and AUX
● Two Analog Line-Level Mono Inputs for Speakerphone and PC BEEP
● Mono MIC Input Switchable from Two External Sources
● High Quality CD Input with Ground Sense
● Stereo Line Level Output
● Mono Output for Speakerphone
● Power Management Support
●ENHANCED FEATURES
● Support for Multiple Codec Communications
● DSP 16-Bit Serial Port Format
● Variable 7 kHz to 48 kHz Sampling Rate with 1 Hz Resolution
● Supports Modem Sample Rates and Filtering
● Phat™ Stereo 3D Stereo Enhancement
● VHDL and Verilog Models of Serial Port Available
