MAX9701 MAXIM [Maxim Integrated Products], MAX9701 Datasheet
MAX9701
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MAX9701 Summary of contents
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... The MAX9701 features high 80dB PSRR, less than 0.1% THD+N, and SNR in excess of 88dB. Short-circuit and thermal-overload protection prevent the device from being damaged during a fault condition. The MAX9701 is available in 24-pin thin QFN-EP (4mm x 4mm x 0.8mm), 20-pin TSSOP, and 20-bump UCSP™ (2mm x 2.5mm x 0.6mm) packages. The MAX9701 is specified over the extended -40° ...
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Filterless, Stereo Class D Audio Power Amplifier ABSOLUTE MAXIMUM RATINGS V to GND.............................................................................. ..........................................................-0.3V to +0. PGND .........................................................................6V DD GND to PGND .......................................................-0.3V to +0.3V All Other Pins to GND.................................-0.3V to ...
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Filterless, Stereo Class D Audio ELECTRICAL CHARACTERISTICS (continued) = SHDN = 3.3V, GND = PGND = 0V, SYNC = 0V (FFM), gain = 6dB (GAIN1 = 0, GAIN2 = 1 OUT+ and OUT-, ...
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Filterless, Stereo Class D Audio Power Amplifier = SHDN = 3.3V, GND = PGND = 0V, SYNC = TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 4Ω ...
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Filterless, Stereo Class D Audio = SHDN = 3.3V, GND = PGND = 0V, SYNC = TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER 100 8Ω L ...
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Filterless, Stereo Class D Audio Power Amplifier = SHDN = 3.3V, GND = PGND = 0V, SYNC = CROSSTALK vs. FREQUENCY - 300mW OUT - 8Ω L -50 -60 ...
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... WIDEBAND OUTPUT SPECTRUM (FFM MODE) 0 RBW = 10kHz -10 INPUT AC GROUNDED -20 -30 -40 -50 -60 -70 -80 -90 -100 1k 10k FREQUENCY (Hz) TURN-ON/TURN-OFF RESPONSE SHDN MAX9701 OUTPUT 10ms/div _______________________________________________________________________________________ Typical Operating Characteristics (continued) (SSM), gain = 6dB (GAIN1 = 0, GAIN2 = 1)). DD 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 1k 100k ...
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Filterless, Stereo Class D Audio Power Amplifier PIN TSSOP TQFN UCSP B1 A4 ...
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... R IN INL- 470nF R IN INR+ 470nF R IN INR- V BIAS GAIN1 GAIN GAIN2 CONTROL SHDN _______________________________________________________________________________________ Power Amplifier Functional Diagram 0.1µ SYNC_OUT OUTL+ CLASS D MODULATOR OUTL- AND H-BRIDGE OUTR+ CLASS D MODULATOR OUTR- AND H-BRIDGE V BIAS BIAS GENERATOR MAX9701 GND PGND 9 ...
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... ON(MIN OUT+ OUT- Figure 1. MAX9701 Outputs with an Input Signal Applied Detailed Description The MAX9701 filterless, stereo class D audio power amplifier features several improvements to switch-mode amplifier technology. The MAX9701 offers class AB per- formance with class D efficiency, while occupying mini- mal board space. A unique, filterless modulation ...
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... ON(MIN OUT_+ OUT_- Figure 2. MAX9701 Outputs with an Input Signal Applied (SSM Mode) Operating Modes Fixed-Frequency (FFM) Mode The MAX9701 features two fixed-frequency modes. Connect SYNC to GND to select a 1.1MHz switching fre- quency. Leave SYNC unconnected to select a 1.4MHz switching frequency. The frequency spectrum of the ...
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... SYNC idling. When no signal is present at the input of the MAX9701, the amplifiers will output an in-phase square wave as shown in Figure 4. Because the MAX9701 drives the speaker differentially, the two outputs cancel each other, resulting in no net idle mode voltage across the speaker, minimizing power consumption. ...
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... Any parasitic resistance in the filter components results in a loss of power, lowering the efficiency. ______________________________________________________________________________________ The MAX9701 does not require an output filter. The device relies on the inherent inductance of the speaker coil and the natural filtering of both the speaker and the human ear to recover the audio component of the square-wave output ...
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... Single-Ended Input The MAX9701 can be configured as a single-ended input amplifier by capacitively coupling either input to GND, and driving the other input (Figure 6). The input amplifier can accept DC-coupled inputs that are biased within the amplifier’ ...
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... MAX9701 configured as a mid-/high-frequency amplifier and the MAX9700 configured as a mono bass amplifier. Input capacitors (C frequency according to the following equation: Output Filter where R MAX9701. The 10µF capacitors on the output of the MAX9701 ensure a two-pole highpass filter. Power Amplifier 10µF 8Ω 10µF 8Ω ...
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... High-output trace resistance decreases the power delivered to the load. Large output, supply, and GND traces allow more heat to move from the MAX9701 to the air, decreasing the thermal imped- ance of the circuit. The MAX9701 thin QFN-EP package features an exposed thermal pad on its underside. This pad lowers the package’ ...
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... CODEC 2.2kΩ 0.1µF IN+ IN- GND 0.1µF µCONTROLLER ______________________________________________________________________________________ Power Amplifier System Diagram V DD 10µF 0.1µF 0.1µ 470nF INR+ MAX9701 OUTR+ 470nF INR- OUTR- 470nF INL- OUTL- 470nF INL+ OUTL+ GAIN1 GAIN2 SHDN SYNC GND PGND SHDN 1µF ...
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... OUTL OUTR PGND 6 13 PGND TQFN TRANSISTOR COUNT: 5688 PROCESS: BiCMOS Pin Configurations TOP VIEW MAX9701 INL- SHDN OUTL+ PV OUTL GND INL+ SYNC PGND GND SYNC C V INR+ GAIN1 PGND DD _OUT ...
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Filterless, Stereo Class D Audio (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Power Amplifier Package Information PACKAGE OUTLINE, TSSOP 4.40mm BODY 1 ...
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Filterless, Stereo Class D Audio Power Amplifier (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 20 ______________________________________________________________________________________ Package Information (continued) PACKAGE OUTLINE, 12, 16, ...
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Filterless, Stereo Class D Audio (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, www.maxim-ic.com/packages Maxim cannot assume responsibility for use of any circuitry other than ...