max9768betgt Maxim Integrated Products, Inc., max9768betgt Datasheet
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max9768betgt Summary of contents
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Rev 1; 3/08 General Description The MAX9768 mono 10W Class D speaker amplifier provides high-quality, efficient audio power with an inte- grated volume control function. The MAX9768 features a 64-step dual-mode (analog or digitally programmable) volume control and mute ...
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Mono Class D Speaker Amplifier with Volume Control ABSOLUTE MAXIMUM RATINGS PV to PGND........................................................-0.3V to +16V GND ..............................................................-0.3V to +4V DD SCLK, SDA/VOL to GND ..........................................-0.3V to +4V FB, SYNCOUT ............................................-0. BOOT_ to OUT_........................................................-0.3V ...
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ELECTRICAL CHARACTERISTICS (continued) (PV = 12V 3.3V, GND = PGND = 0V ∞, unless otherwise noted. C between OUT+ and OUT SSM mode. Filterless modulation mode (see the Functional Diagram/Typical Application Circuit ...
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Mono Class D Speaker Amplifier with Volume Control ELECTRICAL CHARACTERISTICS (continued) (PV = 12V 3.3V, GND = PGND = 0V ∞, unless otherwise noted. C between OUT+ and OUT SSM mode. ...
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ELECTRICAL CHARACTERISTICS (continued) (PV = 12V 3.3V, GND = PGND = 0V ∞, unless otherwise noted. C between OUT+ and OUT SSM mode. Filterless modulation mode (see the Functional Diagram/Typical Application Circuit ...
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Mono Class D Speaker Amplifier with Volume Control ELECTRICAL CHARACTERISTICS (continued) (PV = 12V 3.3V, GND = PGND = 0V ∞, unless otherwise noted. C between OUT+ and OUT SSM mode. ...
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V = 3.3V = GND = PGND = 0V OUT+ and OUT 8Ω, unless otherwise noted spread-spectrum modulation mode.) TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY ...
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Mono Class D Speaker Amplifier with Volume Control (PV = 12V 3.3V = GND = PGND = 0V OUT+ and OUT 8Ω, unless otherwise noted spread-spectrum modulation mode.) EFFICIENCY vs. ...
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V = 3.3V = GND = PGND = 0V OUT+ and OUT 8Ω, unless otherwise noted spread-spectrum modulation mode.) POWER-SUPPLY REJECTION RATIO ( vs. FREQUENCY ...
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Mono Class D Speaker Amplifier with Volume Control (PV = 12V 3.3V = GND = PGND = 0V OUT+ and OUT 8Ω, unless otherwise noted spread-spectrum modulation mode.) WIDEBAND OUTPUT ...
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PIN NAME 1, 2 OUT+ Positive Speaker Output Speaker Amplifier Power-Supply Input. Bypass with a 1µF capacitor to ground. DD Positive Speaker Output Boost Flying-Capacitor Connection. Connect a 0.1µF ceramic capacitor 4 BOOT+ between BOOT+ and OUT+. ...
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Mono Class D Speaker Amplifier with Volume Control 0.47μF 20kΩ (SHOWN IN ANALOG VOLUME CONTOL MODE Detailed Description The MAX9768 10W, Class D audio power amplifier with spread-spectrum modulation provides a ...
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Operating Modes Fixed-Frequency Mode The MAX9768 features two fixed-frequency modes: 300kHz and 360kHz. Connect SYNC to GND to select 300kHz switching frequency; leave SYNC unconnected to select 360kHz switching frequency. The frequency spectrum of the MAX9768 consists of the fundamental ...
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Mono Class D Speaker Amplifier with Volume Control Filterless Modulation/PWM Modulation The MAX9768 features two output modulation schemes: filterless modulation or classic PWM, selec- table through SCLK when the device is in analog mode (ADDR2 and ADDR1 = GND, ...
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Hard Current Limit When the output current exceeds the hard current limit, 2.5A (typ), the MAX9768 disables the outputs and initi- ates a startup sequence. This startup sequence takes 220ms for the MAX9768 and 15ms for the MAX9768B. The shutdown ...
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Mono Class D Speaker Amplifier with Volume Control SDA t SU,DAT t LOW SCL t HIGH t HD,STA t R START CONDITION Figure 3. 2-Wire Serial-Interface Timing Diagram One data bit is transferred during each SCL cycle. The data ...
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Table 3. Slave Address Block SA7 (MSB) SA6 1 0 Table 4. Slave Address ADDR2 ADDR1 write to the MAX9768 includes transmission of a START condition, the slave address with the ...
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Mono Class D Speaker Amplifier with Volume Control Table 5. Data Byte Format (MSB Table 6. Speaker Volume Levels ...
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Table 6. Speaker Volume Levels (continued ...
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Mono Class D Speaker Amplifier with Volume Control Applications Information Filterless Class D Operation The MAX9768 can be operated without a filter and meet common EMC radiation limits when the speaker leads are less than approximately 10cm. Lengths beyond ...
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Inductor-Based Output Filters Some applications will use the MAX9768 with a full inductor-/capacitor-based (LC) output filter. This is common for longer speaker lead lengths, and to gain increased margin to EMC limits. Select the PWM output mode and use fixed-frequency ...
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Mono Class D Speaker Amplifier with Volume Control AUDIO INPUT IN MAX9768 Figure 9. Setting Gain The MAX9768 has different supplies for each portion of the device, allowing for the optimum combination ...
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Pin Configuration TOP VIEW SHDN 19 MUTE 20 PGND 21 MAX9768 PGND 22 ADDR2 23 + ADDR1 TQFN (4mm × 4mm) ______________________________________________________________________________________ 10W Mono Class D Speaker ...
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Mono Class D Speaker Amplifier with Volume Control (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.) 24 ______________________________________________________________________________________ Package Information ...
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For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ 10W Mono Class D Speaker Amplifier with Volume Control Package Information (continued) 25 ...
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... Maxim reserves the right to change the circuitry and specifications without notice at any time. 26 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products Heaney Revision History DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc. PAGES CHANGED — 24, 25 ...