PDF
| Part Number(s) (NSID) |
Top View | Type | Pins | MSL Rating | Peak Reflow | RoHS Status |
CAD Symbols | Models | Package Marking Format |
|---|---|---|---|---|---|---|---|---|---|
| LM4844TL/NOPB |
 |
MICRO SMD | 30 | 1 | 260 | Detail | Download | N/A |
XYTT I GF3 |
| • | Stereo speaker amplifier |
| • | Stereo OCL headphone amplifier |
| • | Independent Left, Right, and Mono volume controls |
| • | National 3D enhancement |
| • | I |
| • | Ultra low shutdown current |
| • | Click and Pop Suppression circuit |
| • | 10 distinct output modes |
Description
The LM4844 is an integrated audio sub-system designed for stereo cell phone applications. Operating on a 3.3V supply, it combines a stereo speaker amplifier delivering 495mW per channel into an 8Ω load and a stereo OCL headphone amplifier delivering 33mW per channel into a 32Ω load.
It integrates the audio amplifiers, volume control, mixer, power management control, and National 3D enhancement all into a single package. In addition, the LM4844 routes and mixes the stereo and mono inputs into 10 distinct output modes. The LM4844 is controlled through an I
Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal amount of external components.
The LM4844 is available in a very small 2.5mm x 2.9mm 30-bump micro SMD (TL) package.
| 495mW (typ) | |
| 33mW (typ) | |
| 0.1μA (typ) |
| • | Cell Phones |
| • | PDAs |
| • | Portable Gaming Devices |
| • | Internet Appliances |
| • | Portable DVD, CD, AAC, and MP3 Players |
Diagrams
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Block Diagram
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Typical Performance  |
web:www.henlito.com
