LM4543

Features: ` Audio Codec '97 compliant` Stereo 18-Bit SD A/D's and D/A's with 128X oversampling` National's 3D Sound circuitry` Power management support` Digital Interface 3V and 5V compliantApplication· Desktop PC Audio Systems· Portable PC Audio Systems· Mobile PC Audio SolutionsSpecificationsSup...

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LM4543 Picture
SeekIC No. : 004395713 Detail

LM4543: Features: ` Audio Codec '97 compliant` Stereo 18-Bit SD A/D's and D/A's with 128X oversampling` National's 3D Sound circuitry` Power management support` Digital Interface 3V and 5V compliantApplicat...

floor Price/Ceiling Price

Part Number:
LM4543
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/26

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Product Details

Description



Features:

` Audio Codec '97 compliant
` Stereo 18-Bit SD A/D's and D/A's with 128X oversampling
` National's 3D Sound circuitry
` Power management support
` Digital Interface 3V and 5V compliant



Application

· Desktop PC Audio Systems
· Portable PC Audio Systems
· Mobile PC Audio Solutions



Specifications

Supply Voltage ....................6.0V
Storage Temperature .......−65°C to +150°C
Input Voltage .......... 
−0.3V to VDD +0.3V
ESD Susceptibility (Note 5) ..........   2500V
pins 27, 28....................   1500V
pin 3.........................  750V
ESD Susceptibility (Note 6) ...........  200V
pin 3 ......................... 100V
Junction Temperature ..............150°C
Soldering Information
TQFP Package
Vapor Phase (60 sec.) ..............215°C
Infrared (15 sec.) .................220°C
See AN-450 ²Surface Mounting and their Effects on
Product Reliability² for other methods of
soldering surface mount devices.
qJA (typ)-VBH48A ............... 74°C/W




Description

The LM4543 is an audio codec for PC systems which performs the analog-intensive function of the Analog Codec '97 Rev 1.03 architecture. Using 18-Bit SD A/D and D/A converters, the LM4543 provides 90dB of dynamic range.

The LM4543 was designed specifically to provide a high quality audio path and provide all analog functionality in a PC audio system. It 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 LM4543 provides National's 3D Sound stereo enhancement technology.

The LM4543 features AC-Link, a synchronous, fixed rate serial bus for connection to the digital AC '97 Controller. The separation of the analog and digital functions of the AC '97 architecture allows for system design flexibility and increasedoverall performance.




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