STAC9753A Datasheet | IDT

ATURES - - - - - - - - - - - - - - - - - - High Performance Σ∆ Technology AC’97 Rev 2.3 plaint 20-bit Full Duplex Stereo ADC & DACs Independent Sample Rates for ADC & DACs 5-Wire AC-Link Protocol pliance 20-Bit SPDIF Output Universal Jacks ™ Full Stereo Microphone Pre-Amp Internal Jack Sensing on Headphone & Line_Out Internal Microphone Input Sensing Digital PC Beep Option Extended AC’97 2.3 Paging Registers General Purpose I/Os and Crystal Elimination Circuit Headphone Drive Capability (50 m W per channel) Switchable Headphone Out (pins 39/41 or 35/36) 0d B, 10d B, 20d B and 30d B Microphone Boost Capability +3.3 V (STAC9753A) and +5 V (STAC9752A) Analog Power Supply Options Pin patible with STAC9750/52/66 - Reference Designs STAC9752A/9753A DESCRIPTION IDT's STAC9752A/9753A are general purpose 20-bit, full duplex, audio CODECs conforming to the analog ponent specification of AC'97 (Audio CODEC 97 ponent Specification Rev. 2.3). The STAC9752A/9753A incorporates IDT's proprietary Σ∆ technology. The AC’97 CODEC is designed to achieve a DAC SNR in excess of 94d B. The DACs, ADCs, and mixer are integrated with analog I/Os, which include four analog line-level stereo inputs, two analog line-level mono inputs, two stereo outputs, and one mono output channel. The STAC9752A/9753A includes digital input/output capability for support of modern PC systems, with an output that supports the SPDIF format. The STAC9752A/9753A is a standard 2-channel stereo CODEC. With IDT’s headphone drive capability, headphones can be driven with without an external amplifier. The STAC9752A/9753A may be used as a secondary CODEC, with the STAC9700/21/56/08/84/50/52 as the primary, in a multiple CODEC configuration conforming to the AC'97 Rev. 2.3 specification. This configuration can provide the true six-channel, AC-3 playback required for DVD applications. The STAC9752A/9753A municates via the five-wire AC-Link to any digital ponent of AC'97, providing flexibility in the audio system design....