LM4548 - Texas Instruments

LM4548 AC97 Rev2 Codec

The LM4548 is an audio codec for PC systems which is fully PC98 compliant and performs the analog intensive functions of the AC97 Rev2 architecture. Using 18-bit Sigma-Delta A/D's and D/A's, the LM4548 provides 90dB of Dynamic Range. The LM4548 was designed specifically to provide a high quality audio path and provide all analog functionality in a PC audio s.

Features

1
•2 AC'97 Rev2 Compliant
• TI's 3D Sound Circuitry
• High Quality Sample Rate Conversion (SRC) from 4kHz to 48kHz in 1Hz Increments.
• Multiple Codec Support
• True Line Level Output with Volume Control in Addition to Standard Line Out
• Advanced Power Management Support
• Digital 3V and 5V Compliant APPLICATIONS
• Desktop PC Audio Systems
• Portable PC Systems
• Mobile PC Systems KEY SPECIFICATIONS
• Analog Mixer Dynamic Range: 97 dB (typ)
• D/A Dynamic Range: 89 dB (typ)
• A/D Dynamic Range: 90 dB (typ) DESCRIPTION The LM4548 is an audio codec for PC systems which is fully PC98 compliant a.