MAX9860 Datasheet | Maxim Integrated

MAX9860 16-Bit Mono Audio Voice Codec General Description The MAX9860 is a low-power, voiceband, mono audio codec designed to provide a plete audio solution for wireless voice headsets and other mono voice audio devices. Using an on-chip bridge-tied load mono headphone amplifier, the MAX9860 can output 30m W into a 32Ω earpiece while operating from a single 1.8V power supply. Very low power consumption makes it an ideal choice for battery-powered applications. The MAX9860’s flexible clocking circuitry utilizes mon system clock frequencies ranging from 10MHz to 60MHz, eliminating the need for an external PLL and multiple crystal oscillators. Both the ADC and DAC support sample rates of 8k Hz to 48k Hz in either synchronous or asynchronous operation. Both master and slave timing modes are supported. Two differential microphone inputs are available with a user-programmable preamplifier and programmable gain amplifier. Automatic gain control with selectable attack/release times and signal threshold allows maximum dynamic range. A noise gate with selectable threshold provides a means to quiet the channel when no signal is present. Both the DAC and ADC digital filters provide full attenuation for out-of-band signals as well as a 5th order GSM-pliant digital highpass filter. A digital side tone mixer provides loopback of the microphones/ADC signal to the DAC/headphone output. Serial DAC and ADC data is transferred over a flexible digital I2S-patible interface that also supports TDM mode. Mode settings, volume control, and shutdown are programmed through a 2-wire, I2C-patible interface. The MAX9860 is fully specified over the -40°C to +85°C extended temperature range and is available in a lowprofile, 4mm x 4mm, 24-pin thin QFN package. Applications Audio Headsets Portable Navigation Device Mobile Phones Smart Phones Vo IP Phones Audio Accessories Pin Configuration and Typical Operating Circuit appear at end of data sheet. Features o 1.8V Single-Supply...