MAX9792 MAXIM [Maxim Integrated Products], MAX9792 Datasheet
MAX9792
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MAX9792 Summary of contents
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... The MAX9791 combines a stereo 2W Class D power amplifier, a stereo 180mW DirectDrive amplifier, and a 120mA low-dropout (LDO) linear regu- lator in a single device. The MAX9792 combines a mono 3W Class D power amplifier, a stereo 180mW DirectDrive headphone amplifier, and a 120mA LDO linear regulator in a single device. ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ABSOLUTE MAXIMUM RATINGS Supply Voltage (AVDD, PVDD, HPVDD to GND)........................-0.3V to +6.0V GND to PGND, CPGND ......................................................±0.3V CPVSS, C1N to GND ............................................-6. 0.3V HPL, HPR to CPVSS ...........................................-0.3V ...
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... L (MAX9792) P OUT R = 4Ω L (MAX9791) THD 1kHz 8Ω +25°C (MAX9791) A (Note 3Ω L (MAX9792 8Ω 500mW 1kHz (Note 4) L OUT R = 4Ω 500mW 1kHz (Note 4) L OUT 4.5V to 5.5V, T AVDD PVDD f = 217Hz, 200mV P-P PSRR f = 1kHz, 200mV P 10kHz, 200mV ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ELECTRICAL CHARACTERISTICS (continued 5V, V AVDD PVDD HPVDD GND wise specified 20kΩ 12dB), R IN1 VSPKR unless otherwise noted. Typical ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ELECTRICAL CHARACTERISTICS (continued 5V, V AVDD PVDD HPVDD GND wise specified 20kΩ 12dB), R IN1 VSPKR unless otherwise noted. Typical ...
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... R = 3Ω -3dBFS IN -20 -30 - -50 RMS -60 -70 - 707mV RMS -90 -100 0.01 0 100 FREQUENCY (kHz) TOTAL HARMONIC DISTORTION + NOISE vs. OUTPUT POWER (MAX9792 SPEAKER MODE) 100 R = 3Ω 6kHz 1kHz 0.1 0. 100Hz 0.001 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 OUTPUT POWER (W) 6 _______________________________________________________________________________________ = ...
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... LEFT -50 -60 -70 -80 RIGHT -90 -100 0.1 10 0.01 1 FREQUENCY (kHz) = ∞, unless oth 1µ 1µF. R LDO L = 470nF 1µF, measurement BW IN1 IN2 COM EFFICIENCY vs. OUTPUT POWER (MAX9792 SPEAKER MODE) 110 100 R = 8Ω 100 0 0.5 1.0 1 ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ( 5V, V AVDD PVDD HPVDD GND erwise specified 20kΩ (A IN1 VSPKR = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ( 5V, V AVDD PVDD HPVDD GND erwise specified 20kΩ (A IN1 VSPKR = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ( 5V, V AVDD PVDD HPVDD GND erwise specified 20kΩ (A IN1 VSPKR = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ( 5V, V AVDD PVDD HPVDD GND erwise specified 20kΩ (A IN1 VSPKR = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ( 5V, V AVDD PVDD HPVDD GND erwise specified 20kΩ (A IN1 VSPKR = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ( 5V, V AVDD PVDD HPVDD GND erwise specified 20kΩ (A IN1 VSPKR = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ( 5V, V AVDD PVDD HPVDD GND erwise specified 20kΩ (A IN1 VSPKR = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers ( 5V, V AVDD PVDD HPVDD GND erwise specified 20kΩ (A IN1 VSPKR = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers PIN NAME 1 SPKR_INL Left-Channel Speaker Amplifier Input 2 HP_INR Right-Channel Headphone Amplifier Input 3 HP_INL Left-Channel Headphone Amplifier Input 4 COM Common-Mode Voltage Sense Input 5 GND Signal Ground. ...
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... The MAX9791 combines a stereo 2W Class D power amplifier, a stereo 175mW DirectDrive headphone amplifier, and a 120mA LDO linear regulator in a single device. The MAX9792 combines a mono 3W Class D power amplifier, a stereo 175mW DirectDrive head- phone amplifier, and a 120mA LDO linear regulator in a single device. ...
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... Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers Table 1. Windows Premium Mobile Vista Specifications vs. MAX9791/MAX9792 Specifications DEVICE TYPE REQUIREMENT THD+N Analog Line-Out Jack Dynamic range with signal (R = 10kΩ present 0.707V ) RMS Line output crosstalk THD+N Dynamic range with signal ...
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... Maxim’s patented DirectDrive architecture uses a charge pump to create an internal negative supply volt- age. This allows the headphone outputs of the MAX9791/MAX9792 to be biased at GND while operat- ing from a single supply (Figure 3). Without a DC com- ponent, there is no need for the large DC-blocking capacitors. Instead of two large (220µ ...
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... However often necessary to locate some jacks far from the audio device. The MAX9791/MAX9792 COM and SENSE inputs allow the headphone jack to be placed further away from the device without degrading crosstalk performance. ...
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... SPKR AND HP AMPS ENABLE Figure 7. Qualified BEEP Signal Timing ______________________________________________________________________________________ Figure 6. MAX9791/MAX9792 COM and SENSE Inputs Reduce Crosstalk time, connect SPKR_EN and HP_EN together, allowing a single logic voltage to enable either the speaker or the headphone amplifier as shown in Figure 8. The MAX9791/MAX9792 feature a low-power shutdown mode, drawing 0.1µ ...
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... Figure 8. Enabling Either the Speaker or Headphone Amplifier with a Single Control Pin Click-and-Pop Suppression The MAX9791/MAX9792 feature a common-mode bias voltage of 0V BIAS allows the MAX9791/MAX9792 to quickly turn on/off with no resulting clicks and pops. With the HDA CODEC outputs biased and the MAX9791/MAX9792 inputs sitting shutdown ...
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... Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers Setting Speaker Amplifier Gain External input resistors in conjunction with the internal feedback resistors (R ) set the speaker amplifier FSPKR gain of the MAX9791/MAX9792. Set gain by using resistor R as follows (Figure 9): IN1 ⎛ ⎞ Ω ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers INPUT COUPLING CAPACITOR-INDUCED THD+N vs. FREQUENCY (HEADPHONE MODE) -50 0603 10V X7R 10% 1μF -60 -70 0603 10V X5R 10% 1μF -80 0805 50V X7R 10% 1μF -90 0402 6.3V ...
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... Large output, supply, and GND traces also improve the power dissi- pation of the device. The MAX9791/MAX9792 thin QFN package features an exposed thermal pad on its underside. This pad lowers the package’s thermal resistance by providing a direct heat conduction path from the die to the printed circuit board ...
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... CPGND C1N CPVSS 11 SENSE 25 MAX9792A 26 10 HPL *EP HPR LDO_EN TQFN (4mm x 4mm x 0.75mm) *EP = EXPOSED PAD Simplified Block Diagrams (continued) SPEAKER SUPPLY HEADPHONE SUPPLY 4.5V TO 5.5V 2.7V TO 5.5V CLASS D AMP MAX9792A SPKR_EN HP_EN LDO_EN BEEP 4.75V LDO ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers C IN3 R IN3 C RIN1 IN1 SPKR_INL CIN1 RIN1 SPKR_INR C R IN3 IN3 C IN2 R IN2 HP_INL 3 C IN2 R IN2 HP_INR 2 4.5V TO 5.5V ...
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... SPKR_EN = 0, SPEAKER AMPLIFIER ENABLED HP_EN = 1, HEADPHONE AMPLIFIER ENABLED 28 ______________________________________________________________________________________ 4.5V TO 5.5V PVDD 17, 26 20kΩ MONO 28 CLASS D AMPLIFIER CONTROL 4 40.2kΩ LDO BLOCK 1, 5 20, 23 GND PGND MAX9792A Block Diagram 0.1μF MAX9792A MAX9792B 19, 24 OUT+ 18, 25 OUT- 40.2kΩ TO HPVDD 10 HPL TO CPVSS 9 HPR TO HPVDD 2.7V TO 5.5V 40.2kΩ 11 SENSE ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 28 TQFN-EP ______________________________________________________________________________________ Package Information PACKAGE CODE T2844-1 DOCUMENT NO. 21-0139 29 ...
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Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. ...