LM4838LQ/NOPB
ObsoleteIC AMP CLASS AB STER 2.2W 28WQFN
LM4838LQ/NOPB
ObsoleteIC AMP CLASS AB STER 2.2W 28WQFN
Description
General part information
LM4838 Series
The LM4838 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω with less than 1.0% THD or 2.2W into 3Ω with less than 1.0% THD (see Notes below).
Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4838 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.
The LM4838 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.
Technical Specifications
Parameters and characteristics for this part
| Specification | LM4838LQ/NOPB |
|---|---|
| Channels | 2 |
| Features | Mute, Depop, Shutdown, Thermal Protection, Volume Control |
| Load Impedance | 3 Ohm, 32 Ohm |
| Maximum Output Power (per Channel) | 2.2 W, 95 mW |
| Mounting Type | Surface Mount |
| Operating Temperature (Max) | 85 °C |
| Operating Temperature (Min) | -40 °C |
| Output Type | 2-Channel (Stereo) with Stereo Headphones |
| Package / Case | 28-WFQFN Exposed Pad |
| Package Length | 5 mm |
| Package Name | 28-WQFN |
| Package Width | 5 mm |
| Type | Class AB |
| Voltage - Supply (Maximum) | 5.5 V |
| Voltage - Supply (Minimum) | 2.7 V |
Pricing
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