PDF 
| Part Number(s) (NSID) |
Top View | Type | Pins | MSL Rating | Peak Reflow | RoHS Status |
CAD Symbols | Models | Package Marking Format |
|---|---|---|---|---|---|---|---|---|---|
| LM4838GR |
MICRO-ARRAY | 49 | Detail | Download | N/A |
NS UZXYTT L4838GR |
|||
| LM4838MTEX/NOPB LM4838MTEX |
 |
TSSOP EXP PAD | 28 | 1 1 |
260 260 |
Detail | Download | N/A |
NSUZXYTT LM4838MTE |
| LM4838MTX/NOPB LM4838MTX |
 |
TSSOP | 28 | 3 3 |
260 235 |
Detail | Download | N/A |
NSUZXYTT LM4838MT |
| • | DC Volume Control Interface |
| • | System Beep Detect |
| • | Stereo switchable bridged/single-ended power amplifiers |
| • | Selectable internal/external gain and bass boost |
| • | "Click and pop" suppression circuitry |
| • | Thermal shutdown protection circuitry |
Description
The LM4838 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4
with less than 1.0% THD or 2.2W into 3 with less than 1.0% THD.
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.
|
PO at 1% THD+N |
|
|
into 3 |
2.2W (typ) |
|
into 4 |
2.0W (typ) |
|
into 8 |
1.1W (typ) |
|
Single-ended mode - THD+N at 85mW into 32 |
1.0%(typ) |
|
Shutdown current |
0.7µA (typ) |
| • | Portable and Desktop Computers |
| • | Multimedia Monitors |
| • | Portable Radios, PDAs, and Portable TVs |
Diagrams
Typical Application
|
Block Diagram
|
Typical Performance  source：ShenZhen henlito electronic co.,ltd.
web:www.henlito.com |
