LM4845ITL/NOPB

$2.34

Description：AUDIO AMPLIFIER, 3 FUNC, PBGA25
Series：*
Mfr：National Semiconductor
Package：Bulk

SKU:7d59227b6987 Category: Audio Amplifiers Brand: National Semiconductor

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Product introduction

LM4845ITL/NOPB is listed in the Audio Amplifiers range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is AUDIO AMPLIFIER, 3 FUNC, PBGA25. Review the specifications below when checking this part for your BOM.

Audio Amplifiers specifications for LM4845ITL/NOPB

Description：AUDIO AMPLIFIER, 3 FUNC, PBGA25
Series：*
Mfr：National Semiconductor
Package：Bulk
Type：-
Output Type：-
Max Output Power x Channels @ Load：-
Voltage - Supply：-
Features：-
Mounting Type：-
Supplier Device Package：-
Package / Case：-
Operating Temperature：-
Grade：-
Qualification：-

Audio Amplifiers datasheet and documents for LM4845ITL/NOPB

LM4845ITL/NOPB

Audio Amplifiers Overview

The LM4845ITL/NOPB is an output capacitor-less audio subsystem featuring a programmable National 3D enhancement. It delivers 500mW continuous average power into an 8Ω bridged-tied load (BTL) with 1% THD+N, or 25mW per channel into stereo 32Ω single-ended loads from a 3.3V supply. The device operates on a single supply voltage ranging from 2.7V to 5.5V. It includes a 32-step digital volume control and eight distinct output modes programmed via I²C or SPI interfaces.

Audio Amplifiers Feature Summary

Integrates programmable National 3D enhancement for audio processing
Supports mono BTL, stereo SE, and OCL output configurations
Features 32-step digital volume control accessible via digital interface

Audio Amplifiers Applications

Cellular phone audio systems
Personal Digital Assistant (PDA) audio circuits
Portable handheld electronic devices

Audio Amplifiers Procurement Notes

Verify the specific suffix ITL against the manufacturer's current datasheet to confirm package type and lead-free status. Ensure the ordering code matches the exact pinout and thermal requirements for the target PCB layout. Cross-reference the NOPB designation to confirm compliance with environmental standards as defined in the official documentation.

Audio Amplifiers Selection Notes

Select this component when designing portable audio applications requiring high efficiency without output capacitors. It is suitable for systems needing flexible channel routing through I²C or SPI controls. Consider the seven external components required in OCL mode for minimal board space utilization.

Audio Amplifiers Part Context

This part belongs to the LM4845 family of audio subsystems manufactured by National Semiconductor, now Texas Instruments. It is designed specifically for low-voltage portable electronics where space and power efficiency are critical constraints.