LM4938MH/NOPB
ActiveSTEREO 2W AUDIO POWER AMPLIFIERS WITH DC VOLUME CONTROL AND SELECTABLE GAIN
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LM4938MH/NOPB
ActiveSTEREO 2W AUDIO POWER AMPLIFIERS WITH DC VOLUME CONTROL AND SELECTABLE GAIN
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Technical Specifications
Parameters and characteristics for this part
| Specification | LM4938MH/NOPB |
|---|---|
| Features | Shutdown, Mute, Volume Control, Thermal Protection, Depop, Bass Boost |
| Max Output Power x Channels @ Load | 2.2 W, 92 mW |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -20 °C |
| Output Type | 2-Channel (Stereo) with Stereo Headphones |
| Package / Case | 28-PowerTSSOP |
| Package / Case [custom] | 4.4 mm |
| Package / Case [custom] | 0.173 " |
| Supplier Device Package | 28-HTSSOP |
| Type | Class AB |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 480 | $ 1.67 | |
| Texas Instruments | TUBE | 1 | $ 2.56 | |
| 100 | $ 2.12 | |||
| 250 | $ 1.52 | |||
| 1000 | $ 1.15 | |||
Description
General part information
LM4938 Series
The LM4938 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.
Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4938 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 LM4938 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.
Documents
Technical documentation and resources