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MAX9750 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX9750 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 30 page General Description The MAX9750/MAX9751/MAX9755 combine a stereo, 2.6W audio power amplifier and stereo DirectDrive 110mW headphone amplifier in a single device. The headphone amplifier uses Maxim’s patented DirectDrive architecture that produces a ground-referenced output from a single supply, eliminating the need for large DC- blocking capacitors, saving cost, space, and component height. A high 90dB PSRR and low 0.01% THD+N ensures clean, low-distortion amplification of the audio signal. The MAX9750 features an analog volume control, and a BEEP input. The MAX9751 features a 2:1 input multiplexer, allowing multiple audio sources to be selected. All devices feature a single-supply voltage, a shutdown mode, logic- selectable gain, and a headphone sense input. Industry- leading click-and-pop suppression eliminates audible transients during power and shutdown cycles. The MAX9750/MAX9751/MAX9755 are offered in space- saving, thermally efficient 28-pin thin QFN (5mm x 5mm x 0.8mm) and 28-pin TSSOP-EP packages. Both devices have thermal-overload and output short-circuit protec- tion, and are specified over the extended -40°C to +85°C temperature range. Applications Notebook PCs Flat-Panel TVs Tablet PCs PC Displays Portable DVD LCD Projectors Features ♦ No DC-Blocking Capacitors Required—Provides Industry’s Most Compact Notebook Audio Solution ♦ PC2001 Compliant ♦ 5V Single-Supply Operation ♦ Class AB 2.6W Stereo BTL Speaker Amplifiers ♦ 110mW DirectDrive Headphone Amplifiers ♦ High 90dB PSRR ♦ Low-Power Shutdown Mode ♦ Industry-Leading Click-and-Pop Suppression ♦ Low 0.01% THD+N at 1kHz ♦ Short-Circuit and Thermal Protection ♦ Selectable Gain Settings ♦ Analog Volume Control (MAX9750) ♦ Beep Input with Glitch Filter (MAX9750) ♦ 2:1 Stereo Input MUX (MAX9751) ♦ ±8kV ESD-Protected Headphone Driver Outputs ♦ Available in Space-Saving, Thermally Efficient Packages 28-Pin Thin QFN (5mm x 5mm x 0.8mm) 28-Pin TSSOP-EP 2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers ________________________________________________________________ Maxim Integrated Products 1 Ordering Information 19-3006; Rev 0; 1/04 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. PART TEMP RANGE PIN- PACKAGE MAXIMUM GAIN (dB) MAX9750AETI* † -40°C to +85°C 28 Thin QFN 13.5 MAX9750AEUI* † -40°C to +85°C 28 TSSOP-EP** 13.5 MAX9750BETI* † -40°C to +85°C 28 Thin QFN 19.5 MAX9750BEUI* † -40°C to +85°C 28 TSSOP-EP** 19.5 MAX9750CETI † -40°C to +85°C 28 Thin QFN 10.5 MAX9750CEUI* † -40°C to +85°C 28 TSSOP-EP** 10.5 MAX9751ETI* † -40°C to +85°C 28 Thin QFN 10.5 MAX9751EUI* † -40°C to +85°C 28 TSSOP-EP** 10.5 MAX9755AETI* † -40°C to +85°C 28 Thin QFN 10.5 MAX9755AEUI* † -40°C to +85°C 28 TSSOP-EP** 10.5 *Future product—contact factory for availability. **EP = Exposed Paddle. †Lead-free package. VOL BEEP MAX9750 Simplified Block Diagrams Simplifed Block Diagrams continued at end of data sheet. |
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