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Technical Specifications
Parameters and characteristics for this part
| Specification | LM48861TMX/NOPB |
|---|---|
| Max Output Power x Channels @ Load | 24 mW |
| Max Output Power x Channels @ Load [custom] | 2 |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | Headphones, 2-Channel (Stereo) |
| Package / Case | DSBGA, 12-WFBGA |
| Supplier Device Package | 12-DSBGA |
| Type | Class AB |
| Voltage - Supply [Max] | 2.8 V |
| Voltage - Supply [Min] | 1.2 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 494 | $ 0.61 | |
Description
General part information
LM48861 Series
The LM48861 is a single supply, ground-referenced stereo headphone amplifier. Part of TI's PowerWise product family, the LM48861 consumes only 3mW of power, yet still provides great audio performance. The ground-referenced architecture eliminates the larger DC blocking capacitors required by traditional headphone amplifier's saving board space and reducing cost.
The LM48861 features common-mode sensing that corrects for any differences between the amplifier ground and the potential at the headphone return terminal, minimizing noise created by any ground mismatches.
The LM48861 delivers 22mW/channel into a 32Ω load with <1% THD+N with a 1.8V supply. Power supply requirements allow operation from 1.2V to 2.8V. High power supply rejection ratio (PSRR), 83dB at 217Hz, allows the device to operate in noisy environments without additional power supply conditioning. A low power shutdown mode reduces supply current consumption to 0.01µA.
Documents
Technical documentation and resources
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