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The LM4546B is an audio codec for PC systems which is fully PC99 compliant and performs the analog intensive functions of the AC '97 Rev 2.1 architecture. Using 18-bit Sigma-Delta ADCs and DACs, the LM4546B provides 90 dB of Dynamic Range. The LM4546B was designed specifically to provide a high quality audio path and provide all analog functionality in a PC.
1
•2 AC '97 Rev 2.1 Compliant
• High Quality Sample Rate Conversion from 4
kHz to 48 kHz in 1 Hz Increments
• Multiple Codec Support
• Texas Instruments' 3D Sound Stereo
Enhancement Circuitry
• Advanced Power Management Support
• Digital 3.3V and 5V Supply Options
• Extended Temperature: −40°C ≤ TA ≤ 85°C
APPLICATIONS
• Desktop PC Audio Systems on PCI Cards, AMR Cards, or with Motherboard Chips Sets Featuring AC Link
• Portable PC Systems as on MDC Cards, or with a Chipset or Accelerator Featuring AC Link
• General and Multi-channel Audio Frequency Systems
• Automotive Telematics
KEY SPECIFICA.
LM4546B - National Semiconductor
The LM4546B is an audio codec for PC systems which is fully PC99 compliant and performs the analog intensive functions o.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | LM4546 |
National Semiconductor |
AC97 Codec |
|
| 2 | LM4546 |
Texas Instruments |
AC97 Rev2 Codec |
|
| 3 | LM4546A |
Texas Instruments |
AC97 Rev2 Multi-Channel Audio Codec |
|
| 4 | LM4546A |
National Semiconductor |
2 Multi-Channel Audio Codec |
|
| 5 | LM4540 |
National Semiconductor |
AC97 Codec |
|
| 6 | LM4543 |
National Semiconductor |
AC97 Codec |
|
| 7 | LM4545 |
National Semiconductor |
AC97 Codec |
|
| 8 | LM4548 |
National Semiconductor |
AC97 Codec |
|
| 9 | LM4548 |
Texas Instruments |
AC97 Rev2 Codec |
|
| 10 | LM4548A |
Texas Instruments |
AC97 Rev2 Multi-Channel Codec |
|
| 11 | LM4548A |
National Semiconductor |
2 Multi-Channel Audio Codec |
|
| 12 | LM4549 |
National Semiconductor |
AC97 Codec |
|