MAX9736/MAX9736A/MAX9736B pdf

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上传日期: 2009-01-22

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The MAX9736A/B Class D amplifiers provide high-performance,thermally efficient amplifier soluTIons. The MAX9736A delivers 2 x 15W into 8Ω loads, or 1 x 30W into a 4Ω load. The MAX9736B delivers 2 x 6W into 8Ω loads or 1 x 12W into a 4Ω load. These devices are pinfor-pin compaTIble, allowing a single audio design to work across a broad range of platforms, simplifying design efforts, and reducing PCB inventory. Both devices operate from 8V to 28V and provide a high PSRR, eliminaTIng the need for a regulated power supply. The MAX9736 offers up to 88% efficiency at 12V supply.
Pin-selectable modulaTIon schemes select between filterless modulation and classic PWM modulation.Filterless modulation allows the MAX9736 to pass CE EMI limits with 1m cables using only a low-cost ferrite bead and capacitor on each output. Classic PWM modulation is optimized for best audio performance when using a full LC filter.
A pin-selectable stereo/mono mode allows stereo operation into 8Ω loads or mono operation into 4Ω loads. In mono mode, the right input op amp becomes available as a spare device, allowing flexibility in system design.Comprehensive click-and-pop reduction circuitry minimizes noise coming into and out of shutdown or mute.Input op amps allow the user to create summing amplifiers,lowpass or highpass filters, and select an optimal gain.
The MAX9736A/B are available in 32-pin TQFN packages and specified over the -40°C to +85°C temperature range.


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