LM4930LQ/NOPB
ActiveAUDIO SUBSYSTEM WITH STEREO HEADPHONE & MONO SPEAKER AMPLIFIERS
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LM4930LQ/NOPB
ActiveAUDIO SUBSYSTEM WITH STEREO HEADPHONE & MONO SPEAKER AMPLIFIERS
Technical Specifications
Parameters and characteristics for this part
| Specification | LM4930LQ/NOPB |
|---|---|
| Features | I2S, Depop, Microphone, DAC, Shutdown, Standby, PCM, Differential Inputs, Volume Control, Mute |
| Max Output Power x Channels @ Load | 27mW x 2 @ 32Ohm, 1W x 1 @ 8Ohm |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -30 °C |
| Output Type | 1-Channel (Mono) with Stereo Headphones |
| Package / Case | 44-WFQFN Exposed Pad |
| Supplier Device Package | 44-WQFN (7x7) |
| Type | Class AB |
| Voltage - Supply [Max] | 5.5 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 | $ 11.04 | |
| Digi-Reel® | 1 | $ 11.04 | ||
| Tape & Reel (TR) | 250 | $ 7.88 | ||
| 500 | $ 7.19 | |||
| 1250 | $ 6.26 | |||
| Texas Instruments | SMALL T&R | 1 | $ 8.45 | |
| 100 | $ 6.89 | |||
| 250 | $ 5.41 | |||
| 1000 | $ 4.59 | |||
Description
General part information
LM4930 Series
The LM4930 is an integrated audio subsystem that supports voice and digital audio functions. The LM4930 includes a high quality I2S input stereo DAC, a voice band codec, a stereo headphone amplifier and a high-power mono speaker amplifier. It is primarily designed for demanding applications in mobile phones and other portable devices.
The LM4930 features an I2S serial interface for full range audio, a 16-bit PCM bi-directional serial interface for the voice band codec and an two-wire interface for control. The full range music path features an SNR of 86dB with a 16-bit 48kHz input. The stereo DAC can also be used while the voice codec is in use. The headphone amplifier delivers 25mWRMSto a 32Ω single-ended stereo load with less than 0.5% distortion (THD+N) when AVDD= 3V. The mono speaker amplifier delivers up to 330mW into an 8Ω load with less than 1% distortion when AVDD= 3V.
The LM4930 employs advanced techniques to reduce power consumption, to reduce controller overhead and to eliminate click and pop. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. It is, therefore, ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.
Documents
Technical documentation and resources
