LM4855LQ/NOPB
Active115-MW STEREO, 1.5-W MONO, ANALOG INPUT, CLASS-AB AUDIO AMPLIFIER
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LM4855LQ/NOPB
Active115-MW STEREO, 1.5-W MONO, ANALOG INPUT, CLASS-AB AUDIO AMPLIFIER
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Technical Specifications
Parameters and characteristics for this part
| Specification | LM4855LQ/NOPB |
|---|---|
| Features | Depop, Thermal Protection, Mute, SPI, Volume Control, Shutdown |
| Max Output Power x Channels @ Load | 0.115 W, 1.5 W |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | 1-Channel (Mono) with Stereo Headphones |
| Package / Case | 24-WFQFN Exposed Pad |
| Supplier Device Package | 24-WQFN (4x5) |
| Type | Class AB |
| Voltage - Supply [Max] | 5 V |
| Voltage - Supply [Min] | 2.6 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.29 | |
| Digi-Reel® | 1 | $ 2.29 | ||
| Tape & Reel (TR) | 1000 | $ 1.13 | ||
| 2000 | $ 1.05 | |||
| 5000 | $ 1.01 | |||
| 10000 | $ 0.97 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.90 | |
| 100 | $ 1.56 | |||
| 250 | $ 1.12 | |||
| 1000 | $ 0.85 | |||
Description
General part information
LM4855 Series
The LM4855 is an audio power amplifier system capable of delivering 1.1W (typ) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N and 115mW (typ) per channel of continuous average power into stereo 32Ω BTL loads with 0.5% THD+N, using a 5V power supply.
The LM4855 features a 32 step digital volume control and eight distinct output modes. The digital volume control and output modes are programmed through a three-wire SPI serial control interface, that allows flexibility in routing and mixing audio channels.
The LM4855 is designed for cellular phone, PDA, and other portable handheld applications. It delivers high quality output power from a surface-mount package and requires only six external components.
Documents
Technical documentation and resources