max9788 Maxim Integrated Products, Inc., max9788 Datasheet
max9788
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max9788 Summary of contents
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... Class AB devices without the EMI penalties commonly associated with Class D amplifiers. The MAX9788 is ideally suited to deliver the high out- put-voltage swing required to drive ceramic/piezoelec- tric speakers. The device utilizes fully differential inputs and outputs, comprehensive click-and-pop suppression, shutdown control, and soft-start circuitry ...
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Class G Ceramic Speaker Driver P-P ABSOLUTE MAXIMUM RATINGS (Voltages with respect to GND CPV .............................................................-0. ...............................................................-6V to +0. CPGND..................................................................-0.3V to +0.3V OUT+, OUT-...................................(SV SS IN+, IN-, ...
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P-P ELECTRICAL CHARACTERISTICS (continued) = SHDN = 3.6V, GND = CPGND = 0V CPV CC DD load connected between OUT+ and OUT-, Z Typical values are +25°C.) (Notes PARAMETER SYMBOL ...
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Class G Ceramic Speaker Driver P-P = SHDN = 3.6V, GND = CPGND = 0V CPV 1µF + 10Ω; load terminated between OUT+ and OUT-, unless otherwise stated Typical ...
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... A MIN MAX SHUTDOWN WAVEFORM MAX9788 toc11 SHDN 5V/div OUT+ - OUT- 500mV/div 10ms/div SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) SUPPLY CURRENT vs. OUTPUT VOLTAGE 1kHz OUTPUT VOLTAGE (V ) RMS MAX9788 toc12 6 ...
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... C1 = 4.7µ 10µF, FB unless otherwise noted. A MIN MAX WLP PACKAGE THERMAL DISSIPATION AND OUTPUT POWER vs. TEMPERATURE 3 RMS 3.0 OUTPUT POWER 2.5 2.0 1.5 PACKAGE THERMAL DISSIPATION 1.0 0.5 0 100k -40 -30 -20 - TEMPERATURE (°C) Pin Description FUNCTION . SS MAX9788 toc19 3 3.0 2.5 2.0 1.5 1.0 0 and SS ...
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... The Class G output stage and the inverting charge pump allow the MAX9788 to deliver a 14V swing two times greater than a traditional single- supply linear amplifier. Class G Operation The MAX9788 Class G amplifier is a linear amplifier that operates within a low (V to GND) and high ( supply range ...
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... Class G Ceramic Speaker Driver P-P Inverting Charge Pump The MAX9788 features an integrated charge pump with an inverted supply rail that can supply greater than 700mA over the positive 2.7V to 5.5V supply range. In the case of the MAX9788, the charge pump generates the negative supply rail (PV ...
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... Above 10kHz, the typical speaker impedance can be less than 16Ω. The MAX9788 is ideal for driving a capacitive ceramic speaker. The high charge-pump current limit allows for a flat frequency response out to 20kHz while maintaining high output voltage swings ...
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... Hold Capacitor (C2) The capacitive nature of the ceramic speaker results in very low impedances at high frequencies. To prevent the ceramic speaker from shorting the MAX9788 output at high frequencies, a series load resistor must be used. The output load resistor and the ceramic speaker create a lowpass filter. To set the rolloff frequency of ...
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... GND 18 (D3 WLP PACKAGE DEVICE SHOWN WITH A = 12dB V *SYSTEM-LEVEL REQUIREMENT TYPICALLY 10μF ______________________________________________________________________________________ V DD 0.1μF * 14, 22 (D1, D5) 1 (B2) 4 (A3) SHDN V CPV CC DD MAX9788 OUT+ + CLASS G OUTPUT OUT- - STAGE CHARGE PUMP CPGND C1P PV SV C1N (A1) 26 (B1) 3 (A2) 24 (C1) 15, 21 (C2, C4) C1 4.7μ ...
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... PAD. 12 ______________________________________________________________________________________ TOP VIEW (BUMP SIDE DOWN CPGND 20 OUT+ 19 N.C. B C1N 18 GND 17 N. OUT PROCESS: BiCMOS Pin Configurations MAX9788 CPV FB- C1P IN- DD SHDN FB+ IN GND OUT- OUT WLP Chip Information ...
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P-P (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ , Class G Ceramic Speaker Driver Package Information 13 ...
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Class G Ceramic Speaker Driver P-P (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 14 ______________________________________________________________________________________ Package Information (continued) ...
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P-P (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ , Class G Ceramic Speaker Driver Package Information (continued) 15 ...
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... Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc. Revision History PAGES CHANGED — ...