MAXIM Manuals (Industrial)

MAX97001 is a mono audio subsystem that combines a mono speaker amplifier with a stereo headphone amplifier and an analog DPST switch. It features independent volume control and on/off control for the headphone and speaker amplifiers. The 4 inputs can be configured as 2 differential inputs or 4 single-ended inputs. The MAX97001 is designed for maximum efficiency, with a low-power Class D speaker amplifier and a dual-mode charge pump for the headphone amplifier. The speaker amplifier includes a distortion limiter to automatically reduce volume level during excessive clipping. Control is performed using the 2-wire I2C interface.

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The MAX97003 is a high-efficiency, low-noise audio subsystem that 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 can be configured 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 quality of large signals. All controls are performed using the two-wire I2C interface. The IC operates in the extended -40°C to +85°C temperature range, and is available in the 2.0mm x 2.4mm, 20-bump WLP package (0.4mm pitch). Applications include cell phones and portable media players.

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The MAX9703/MAX9704 mono/stereo Class D audio power amplifiers provide Class AB amplifier performance with Class D efficiency, conserving board space and eliminating the need for a bulky heatsink.

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MAX9715 is the second generation of Maxim's high efficiency Class D audio power amplifier, providing up to 2.8W per channel into a 4Ω speaker with a 5V supply.

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The MAX9708 is a single/stereo, Class D audio power amplifier from MAXIM that delivers up to 2 x 21W of output power in stereo mode to an 8Ω load and 1 x 42W of output power in mono mode to a 4Ω load, while offering up to 87% efficiency. The MAX9708 provides Class AB amplifier performance with the benefits of Class D efficiency, eliminating the need for a bulky heatsink and conserving power. The MAX9708 operates from a single +10V to +18V supply, driving the load in a BTL configuration. The MAX9708 offers two modulation schemes: a fixed-frequency modulation (FFM) mode, and a spread-spectrum modulation (SSM) mode that reduces EMI-radiated emissions. The MAX9708 can be synchronized to an external clock from 600kHz to 1.2MHz. A synchronized output allows multiple units to be cascaded in the system. Features include fully differential inputs, comprehensive click-and-pop suppression, and four selectable-gain settings (22dB, 25dB, 29.5dB, and 36dB). A pin-programmable thermal flag provides seven different thermal warning thresholds. Short-circuit and thermal-overload protection prevent the device from being damaged during a fault condition. The MAX9708 is available in 56-pin TQFN (8mm x 8mm x 0.8mm) and 64-pin TQFP (10mm x 10mm x 1.4mm) packages, and is specified over the extended -40°C to +85°C temperature range. Applications include LCD TVs, PDP TVs, Automotive and PC/HiFi Audio Solutions.

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The MAX9709 is a Class D audio power amplifier from Texas Instruments. It offers high efficiency, low power consumption, and high output power.

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The MAX9741 stereo Class D audio power amplifier provides Class AB amplifier performance with Class D efficiency, conserving board space and eliminating the need for a bulky heatsink. Using a high-efficiency Class D architecture, it delivers 12W continuous output power into 8Ω loads. Proprietary modulation and switching schemes render the traditional Class D EMI suppression output filter unnecessary. The MAX9741 offers two modulation schemes: a fixed-frequency mode (FFM), and a spread-spectrum mode (SSM) that reduces EMI-radiated emissions. The device utilizes a fully differential architecture, a full bridged output, and offers comprehensive click-and-pop suppression. The MAX9741 features high 80dB PSRR, low 0.1% THD+N, and SNR in excess of 100dB. Short-circuit and thermal-overload protection prevent the device from being damaged during a fault condition. The MAX9741 is available in a 56-pin TQFN (8mm x 8mm x 0.8mm) package. The MAX9741 is specified over the extended -40°C to +85°C temperature range.

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The MAX9742 is a 16W, Class D stereo amplifier from MAXIM that operates from a single or dual supply. The maximum output power is 2 x 16W into a 4Ω load and the input impedance is fully differential. The MAX9742 features a variety of protection functions, including short-circuit and thermal overload protection. It is also available in a space-saving 36-pin TQFN package.

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The MAX9768 mono 10W Class D speaker amplifier provides high-quality, efficient audio power with an integrated volume control function. The MAX9768 features a 64-step dual-mode (analog or digitally programmable) volume control and mute function.

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MAX9736A/B/D is a high-performance, high-efficiency Class D amplifier that can operate from 8V to 28V and provide up to 88% efficiency.

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The MAX9744 is a 20W stereo Class D audio power amplifier that provides Class AB amplifier performance with Class D efficiency. It features single-supply operation, adjustable gain, shutdown mode, a SYNC output, speaker mute, and industry-leading click-and-pop suppression. The MAX9744 features a 64-step dual-mode (analog or digital), programmable volume control and mute function. It operates from a 4.5V to 14V single supply and can deliver up to 20W per channel into a 4Ω speaker with a 14V supply. The MAX9744 offers two modulation schemes: a fixed-frequency modulation mode that allows one of several preset switching frequencies to be selected, and a spread-spectrum modulation mode that helps to reduce EMI-radiated emissions. The MAX9744 features high 75dB PSRR, low 0.04% THD+N, and SNR in excess of 90dB. Robust short-circuit and thermal-overload protection prevent device damage during a fault condition.

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MAX9830 is a mono 2W D-class amplifier from MAXIM, which provides AB-class audio performance and D-class efficiency. It uses active edge rate and overshoot control circuitry to greatly reduce EMI. The filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional D-class devices. These features reduce application component count. MAX9830's industry-leading 1.6mA at 5V, 1.2mA at 3.6V, quiescent current extends battery life in portable applications. MAX9830 is available in an 8-pin TDFN (2mm x 2mm x 0.8mm) and is specified over the extended -40°C to +85°C temperature range.

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The MAX98302 is a 2.4W Class D stereo amplifier from MAXIM that offers Class AB audio performance with Class D efficiency. It has five selectable gain settings (6dB, 9dB, 12dB, 15dB and 18dB) set by a single gain-select input (GAIN).

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The MAX98400A/MAX98400B are high-performance, thermally efficient stereo, high-power, Class D amplifiers

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The MAX98300 is a mono 2.6W Class D amplifier that provides Class AB audio performance with Class D efficiency. It offers five selectable gain settings controlled by a single gain-select input. The device features active emissions-limiting edge-rate and overshoot control circuitry, reducing EMI. It also utilizes a patented filterless spread-spectrum modulation scheme, eliminating the need for output filtering found in traditional Class D devices. The MAX98300 has industry-leading low quiescent current of 0.78mA at 3.7V or 1.1mA at 5V, extending battery life in portable applications. It is available in an 8-pin TDFN-EP (2mm x 2mm x 0.8mm) and a 9-bump (1.2mm x 1.2mm) WLP package.

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MAX98303 is a high-efficiency stereo 3.1W Class D amplifier from Maxim that offers five selectable gain settings (6dB, 9dB, 12dB, 15dB, and 18dB) set by a single gain-select input (GAIN).

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The MAX98304 mono 3.2W Class D amplifier provides Class AB audio performance with Class D efficiency. This device offers five selectable gain settings (0dB, 3dB, 6dB, 9dB, and 12dB) set by a single gain-select input (GAIN). Active emissions-limiting, edge-rate, and overshoot control circuitry greatly reduces EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices. These features reduce application component count. The IC's 0.95mA at 3.7V (1.2mA at 5V) quiescent current extends battery life in portable applications. The IC is available in a 9-bump (1.0mm x 1.0mm) WLP with 0.3mm pitch that is specified over the extended -40NC to +85NC temperature range.

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MAX13301 is a 4-channel automotive Class D audio amplifier from Maxim Integrated Products. It provides up to 80W at 10% THD+N per channel into 4Ω when operating from a 24V supply. The device includes integrated diagnostics to check for output short circuits, output over-current, and thermal overload.

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The MAX98306 is a stereo 3.7W Class D amplifier that combines Class AB audio performance with Class D efficiency. It offers five selectable gain settings and features excellent EMI performance, low quiescent current, and thermal/overcurrent protection.

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