21ic Maxim introduces the MAX98089, a highly integrated stereo audio codec that improves audio performance and prevents damage to speakers. An easy-to-use graphical user interface (GUI) greatly simplifies product design. To minimize the number of discrete components required for the solution, the device integrates a jack detect function to detect peripheral insertion, extraction, and button operations. In idle mode, the DAC-to-headphone path consumes only 5.6mW, which is 15% lower than competing solutions, extending battery life. The MAX98089 features easy-to-use, low-power, high-quality, and small-size wafer-level packaging (WLP), making it ideal for portable multimedia applications such as tablets, netbooks, and mobile phones.
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The MAX98089 uses Maxim's proprietary FlexSoundTM audio technology to optimize signal level and frequency response while minimizing distortion and power dissipation at the output. This technology improves the performance of the speaker and prevents damage to the speaker. FlexSound audio technology combines a complete toolkit to improve speaker sound and voice transmission performance. The easy-to-use GUI is used to evaluate and optimize the MAX98089's 5-band parametric equalization, automatic level control (ALC), speaker drift suppression, speaker power rejection, and speaker distortion (THD) suppression. Software examples for Linux and other operating system platforms are also available to increase application flexibility. To take full advantage of the MAX98089's ADC dynamic range and improve speech conversion performance, the device also provides automatic gain control (AGC) and noise gating to optimize the level of the microphone input signal.
The MAX98089 dramatically reduces the number of external discrete components required by most competing solutions. The device integrates a Class H stereo headphone amplifier and a dual-mode charge pump. This architecture eliminates the bulky output capacitance and helps eliminate clicks and pops when turning on, off, and changing volume. The ground detection circuit can reduce the output noise caused by the ground loop current. The low EMI, stereo Class D speaker amplifier provides filterless amplification for both speakers, and the two integrated amplifiers provide the performance required for today's applications without the need for discrete amplifiers.
The MAX98089 is available in a space-saving (3.8mm x 3.8mm, 0.4mm ball pitch), 63-bump WLP package or 7mm x 7mm, 56-pin TQFN package. The device operates over the -40°C to +85°C extended temperature range.
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