Datasheet Details
- Part number
- LM4545
- Manufacturer
- National Semiconductor
- File Size
- 327.51 KB
- Datasheet
- LM4545_NationalSemiconductor.pdf
- Description
- AC97 Codec
LM4545 Description
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.
LM4545 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.
LM4545 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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