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The LM49321 is an integrated audio sub-system designed for mono voice, stereo music cell phones connecting to base band processors with mono differential analog voice paths. Operating on a 3.3V supply, it combines a mono speaker amplifier delivering 520mW into an 8Ω load, a stereo headphone amplifier delivering 36mW per channel into a 32Ω load, and a mono ea.
an I2S serial interface for full range audio and an I2C or SPI compatible interface for control. The full range music path features an SNR of 85dB with up to 192kHz playback. Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal amount of external components.
Key Specifications
■ POUT LS, 8Ω, 3.3V, 1% THD+N
■ POUT HP, 32Ω, 3.3V, 1% THD+N
■ POUT Mono Earpiece, 32Ω
1% THD+N 55mW (typ) 0.6µA (typ) 85dB (typ) 520mW (typ) 36mW (typ)
■ Shutdown current
■ SNR (DAC + Amplifier)
Features
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18-bit stereo DAC with up to 192kHz samplin.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | LM4930 |
National Semiconductor |
Audio Subsystem |
|
| 2 | LM4930 |
Texas Instruments |
Audio Subsystem |
|
| 3 | LM4931 |
National Semiconductor |
Audio Subsystem |
|
| 4 | LM4931 |
Texas Instruments |
Audio Subsystem |
|
| 5 | LM4934 |
National Semiconductor |
3D Audio Sub-System |
|
| 6 | LM4935 |
National Semiconductor |
Audio Sub-System |
|
| 7 | LM49350 |
National Semiconductor |
High Performance Audio Codec Sub-System |
|
| 8 | LM49352 |
National Semiconductor Corporation |
Mono Class D Audio Codec Subsytem |
|
| 9 | LM4936 |
Texas Instruments |
Stereo 2W Audio Power Amplifiers |
|
| 10 | LM4936 |
National Semiconductor |
Stereo 2W Audio Power Amplifiers |
|
| 11 | LM4937 |
National Semiconductor |
Audio Sub-System |
|
| 12 | LM49370 |
National Semiconductor |
Audio Sub-System |
|