Product Summary

The MAX9700BETB mono class D audio power amplifier provides class AB amplifier performance with class D efficiency, conserving board space and extending battery life. Using a class D architecture, the MAX9700BETB delivers 1.2W into an 8Ω load while offering efficiencies above 90%. A patented, low-EMI modulation scheme renders the traditional class D output filter unnecessary. The MAX9700BETB offers two modulation schemes: a fixedfrequency (FFM) mode, and a spread-spectrum (SSM) mode that reduces EMI-radiated emissions due to the modulation frequency. Furthermore, the MAX9700BETB oscillator can be synchronized to an external clock through the SYNC input, allowing the switching frequency to be user defined. Applications of the MAX9700BETB are: Cellular Phones, PDAs, MP3 Players, Portable Audio.

Parametrics

MAX9700BETB absolute maximum ratings: (1)VDD to GND: 6V; (2)PVDD to PGND: 6V; (3)GND to PGND: -0.3V to +0.3V; (4)All Other Pins to GND: -0.3V to (VDD + 0.3V); (5)Continuous Current Into/Out of PVDD/PGND/OUT: ±600mA; (6)Continuous Input Current (all other pins): ±20mA; (7)Junction Temperature: +150℃; (8)Operating Temperature Range: -40℃ to +85℃; (9)Storage Temperature Range: -65℃ to +150℃; (10)Lead Temperature (soldering, 10s): +300℃.

Features

MAX9700BETB features: (1)Optional External SYNC Input; (2)Simple Master-Slave Setup for Stereo Operation; (3)94% Efficiency; (4)Low 0.01% THD+N; (5)High PSRR (72dB at 217Hz); (6)Integrated Click-and-Pop Suppression; (7)Low Quiescent Current (4mA); (8)Short-Circuit and Thermal-Overload Protection; (9)Available in Thermally Efficient, Space-Saving Packages.

Diagrams

MAX9700BETB block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX9700BETB+T
MAX9700BETB+T

Maxim Integrated Products

Audio Amplifiers 1.2W L-EMI Filterles Class D Audio Amp

Data Sheet

0-2050: $0.29
2050-2500: $0.29
MAX9700BETB-T
MAX9700BETB-T

Maxim Integrated Products

Audio Amplifiers

Data Sheet

Negotiable