Part LM4540
Description AC97 Codec
Manufacturer National Semiconductor
Size 298.51 KB
LM4540 Datasheet (PDF) Download
Pricing from 2.99 USD, available from Rochester Electronics and Verical.
🏠
National Semiconductor

LM4540 Overview

Key Specifications

Package: LQFP

Description

The LM4540 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 Σ∆ A/D and D/A converters, the LM4540 provides 90dB of dynamic range.

Key Features

  • Stereo 18-Bit Σ∆ A/D’s and D/A’s with 128X oversampling
  • National’s 3D Sound circuitry
  • Power management support
  • Digital Interface 3V and 5V compliant
LM4540 datasheet preview

Price & Availability

Seller Inventory Price Breaks Buy
Rochester Electronics 2121 25+ : 2.99 USD
100+ : 2.84 USD
500+ : 2.69 USD
1000+ : 2.54 USD		 View Offer
Verical 2121 106+ : 3.55 USD
500+ : 3.3625 USD
1000+ : 3.175 USD
10000+ : 2.9875 USD		 View Offer

Related Datasheets

Part Number Manufacturer Description
LM4548 Texas Instruments AC97 Rev2 Codec
LM4546 Texas Instruments AC97 Rev2 Codec
LM4546A Texas Instruments AC97 Rev2 Multi-Channel Audio Codec
LM4548A Texas Instruments AC97 Rev2 Multi-Channel Codec
LM4546B Texas Instruments Multi-Channel Audio Codec