MAX9867ETJ+T

MAX9867ETJ+T is an ultra-low power stereo audio codec designed for portable consumer devices such as mobile phones and portable gaming consoles. The device features stereo differential microphone inputs that can be connected to either analogue or digital microphones. The single-ended line inputs, with a configurable preamplifier, can be sent to the ADC for record or routed directly to the headphone amplifier for playback. An auxiliary ADC path can be used to track any DC voltage. The stereo headphone amplifiers support differential, single-ended, and capacitorless output configurations. Using the capacitorless output configuration, the device can output 10mW into 32ohm headphones. Comprehensive click-and-pop circuitry suppresses audible clicks and pops during volume changes and startup or shutdown. Applications include cell phones, portable gaming devices, portable navigation devices, portable multimedia players, wireless headsets.

• Stereo digital microphone input support, stereo analogue differential microphone inputs
• Stereo headphone amplifiers: differential, single-ended, or capacitorless
• Voiceband filter with a stopband attenuation greater than 70dB
• 1.65V to 3.6V digital interface supply voltage
• I²S/TDM-compatible digital audio bus
• Supply voltage range from 1.65 to 1.95V (PVDD, DVDD, AVDD)
• Shutdown supply current is 1µA analogue (AVDD + PVDD), TA=+25°C
• Gain error is 1% DC accuracy, measured with respect to full-scale output
• 32 TQFN-EP package
• Temperature range from -40°C to +85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party