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MAX97003 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX97003 Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 48 page  MAX97003 High-Efficiency, Low-Noise Audio Subsystem ����������������������������������������������������������������� Maxim Integrated Products 1 General Description The MAX97003 audio subsystem combines a mono speaker amplifier with a stereo headphone amplifier. The headphone and speaker amplifiers have independent volume and on/off controls. The four inputs are configu- rable as two differential or four single-ended inputs. To minimize output noise, both the headphone and speaker outputs utilize a downward expander/noise gate to attenuate noise when no desired input signal is present. The speaker output incorporates an adjustable dynamic range compressor (DRC) and distortion limiter to protect the speaker and maximize loudness. This allows high gain for low-level signals without compromising the qual- ity of large signals. All controls are performed using the two-wire I2C inter- face. The IC operates in the extended -40NC to +85NC temperature range, and is available in the 2.0mm x 2.4mm, 20-bump WLP package (0.4mm pitch). Applications Cell Phones Portable Media Players Features S 2.7V to 5.5V Speaker Supply Voltage S 1.8V Headphone Supply Voltage S 1.0W Speaker Output (VPVDD = 4.2V, ZSPK = 8I + 68µH, 1% THD+N) S 32mW/Channel Headphone Output (RHP = 32I) S Active Emissions Limiting for Enhanced EMI Reduction S Efficient Class H Headphone Amplifier S Ground-Referenced Headphone Outputs S Headphone Ground Sense S 2 Stereo Single-Ended/Mono Differential Inputs S Integrated Expander/Noise Gate for Low Output Noise S Integrated DRC (Speaker Outputs) S Integrated Distortion Limiter (Speaker Outputs) S Extensive Click-and-Pop Reduction Circuitry S TDMA Noise Free S 2.0mm x 2.4mm, 20-Bump WLP Package (0.4mm Pitch) Simplified Block Diagram 19-6044; Rev 0; 9/11 Ordering Information appears at end of data sheet. For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX97003.related. STEREO/ MONO INPUT STEREO/ MONO INPUT CLASS D AMPLIFIER CHARGE PUMP POWER SUPPLY 1.8V BATTERY CONTROL I2C HEADPHONE GROUND SENSE LIMITER DRC AND EXPANDER EXPANDER VOLUME VOLUME CLASS H AMPLIFIER MAX97003 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. |
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