max97200 Maxim Integrated Products, Inc., max97200 Datasheet
max97200
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max97200 Summary of contents
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... Rev 1; 3/10 Low-Power, Low-Offset, Dual Mode, Class H General Description The MAX97200 is a 45mW Class H headphone amplifier that runs from a single low 1.8V supply voltage and employs Maxim’s second-generation DirectDrive The MAX97200 features a Dual ModeK internal charge pump to generate the power rails for the amplifier. The charge-pump output can be QPVIN/2 or QPVIN depend- ing on the amplitude of the output signal ...
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Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier ABSOLUTE MAXIMUM RATINGS PVIN or PVDD to PGND .......................................-0.3V to +2.2V GND to PGND ......................................................-0.3V to +0.3V PVSS to PGND .....................................................-2.2V to +0.3V OUT_ and IN_ to GND ............. (PVSS - ...
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... L OUT 16I 10mW 1kHz (Note 4) L OUT 10kI 1V 1kHz (Note 4) L OUT IN V Inputs grounded, A-weighted, MAX97200B N SNR A-weighted, MAX97200B R = 32I, peak L Into shutdown voltage, A-weighted samples/second, Out of shutdown MAX97200B R = 16I, 1kHz 5mW TALK L ...
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Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued 1.8V 0V, V PVIN PGND GND Typical values are +25NC) (Note 2) A PARAMETER SYMBOL DIGITAL INPUT (SHDN) Input ...
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Low-Power, Low-Offset, Dual Mode, Class 1.8V 0V, V PVIN PGND GND unless otherwise noted.) OUTPUT POWER vs. LOAD RESISTANCE 10% THD + THD + N ...
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... SUPPLY MODE SWITCHING R = 16I L 20ms/div 6 ______________________________________________________________________________________ Typical Operating Characteristics (continued) = 1.8V 1FF 10FF, both channels driven in phase, T SHDN MAX97200 toc16 PVDD PVSS TURN-OFF RESPONSE MAX97200 toc18 400µs/div TURN-ON RESPONSE MAX97200 toc17 OUTPUT SHDN 400µs/div OUTPUT SHDN = +25NC, A ...
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... Power Ground. Connect to GND. C1 INL Left Audio Input C2 INR Right Audio Input C3 PVDD Positive Charge-Pump Output. Bypass to PGND with 1FF. C4 PVIN Main Power-Supply Connection. Bypass to PGND with 10FF. _______________________________________________________________________________________ TOP VIEW MAX97200 OUTR PVSS C1N C1P B OUTL SHDN GND PGND ...
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... Maxim’s second-generation DirectDrive architecture uses a charge pump to create an internal negative sup- ply voltage. This allows the headphone outputs of the MAX97200 to be biased at GND while operating from a single supply (Figure 1). Without a DC component, there is no need for the large DC-blocking capacitors. Instead ...
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... The reduced power-supply voltage is good for idle conditions or low-signal level conditions into a head- phone. Class H Operation The MAX97200’s internal Class H amplifier uses a class AB output stage with multiple, discreet power supplies. This result’s in two power-supply differentials of 1.8V and 3.6V generated from a single 1.8V external supply. The ...
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... PVDD and PGND. Connect a 1FF capacitor between PVSS and PGND. RF Susceptibility Improvements to both layout and component selec- tion can decrease the MAX97200 susceptibility to RF noise and prevent RF signals from being demodulated into audible noise. Trace lengths should be kept below ¼ of the wavelength of the RF frequency of interest. ...
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... Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier Simplified Functional Diagram 1.8V C4 10µF PVIN C4 MAX97200 R FB PVDD INL C1 B1 OUTL R IN INR C2 A1 OUTR R IN PVSS SHDN PVSS CHARGE GND B3 PUMP PGND PVDD C1N C1P C3 1µF C1 1µ ...
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Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show ...
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... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2010 Maxim Integrated Products © DirectDrive Headphone Amplifier DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc. Revision History PAGES CHANGED — 2 ...