
Maxim Integrated
General Description
The MAX9736A/B/D 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/D deliver 2 x 6W into 8Ω loads or 1 x 12W into a 4Ω load.
These 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.
FEATUREs
♦ Wide 8V to 28V Supply Voltage Range
♦ Spread-Spectrum Modulation Enables Low EMI Solution
♦ Passes CE EMI Limits with Low-Cost Ferrite Bead/Capacitor Filter
♦ Low BOM Cost
♦ High 67dB PSRR at 1kHz Reduces Supply Cost
♦ 88% Efficiency Eliminates Heatsink
♦ Thermal and Output Current Protection
♦ < 1µA Shutdown Mode
♦ Mute Function
♦ Space-Saving, 32-Pin TQFN Packages, 7mm x
7mm x 0.8mm (MAX9736A/B), 5mm x 5mm x 0.8mm (MAX9736D)
APPLICATIONs
LCD/PDP/CRT Monitors
LCD/PDP/CRT TVs
MP3 Docking Stations
Notebook PCs
PC Speakers
All-in-One PCs