LM4545 Datasheet - National Semiconductor

LM4545, AC97 Codec

LM4545 AC ’97 Codec with Stereo Headphone Amplifier and National 3D Sound PRELIMINARY July 1999 LM4545 AC ’97 Codec with Stereo Headphone Amplifier .
The LM4545 is an audio codec for PC systems which performs the analog-intensive function of the Analog Codec ’97 Rev 1.

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Datasheet Details

Part number:

LM4545

Manufacturer:

National Semiconductor

File Size:

327.51 KB

Description:

AC97 Codec

Features

* full duplex stereo A/D’s and D/A’s and an analog mixer with 4 stereo and 3 mono inputs, each of which has separate gain, attenuation and mute control. In addition, the LM4545 provides a stereo headphone amplifier with an independent gain control and National’s 3D Sound stereo enhancement technology.

Applications

* n Desktop PC Audio Systems n Portable PC Audio Systems n Mobile PC Audio Solutions Block Diagram DS100069-1 FIGURE 1. LM4545 Block Diagram © 1999 National Semiconductor Corporation DS100069 www. national. com Absolute Maximum Ratings (Note 3) If Military/Aerospace specified devices are required

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