Cirrus Logic WM8904ECS/R

立体声音频2 / 2-40°C ~ 85°C

Overview

The WM8904ECS/R is a high performance, ultra low power stereo codec featuring stereo ground-referenced headphone amplifiers that incorporate a dual-mode charge pump architecture to optimize efficiency and power consumption during playback. The ground-referenced headphone and line outputs eliminate AC coupling capacitors, and both outputs include common mode feedback paths to reject ground noise. Control sequences for audio path setup can be pre-loaded and executed by an integrated control write sequencer to reduce software driver development and minimize pops and clicks. The analog input stage can be configured for single ended, or differential inputs. Up to three stereo microphone or line inputs may be connected. The input impedance is constant with PGA gain setting. A stereo digital microphone interface is provided, with a choice of two inputs. A dynamic range controller provides compression and level control to support a wide range of portable recording applications. Anti-clip and quick release features offer excellent performance in the presence of loud impulsive noises. ReTune™ Mobile 5-band parametric equalizer with fully programmable coefficients is integrated for optimization of speaker characteristics. Programmable dynamic range control is also available for maximizing loudness, protecting speakers from clipping and preventing premature shutdown due to battery droop.

Features

Tape & Reel (TR) Package
Embedded in the 36-UFBGA, WLCSP package
Operating temperature of -40°C~85°C
2 / 2 ADCs / DACs

Surface Mount Mounting Type

Applications

There are a lot of Cirrus Logic Inc.
WM8904ECS/R CODECs Interface ICs applications.

• Autonomous vehicles & robots
• Backstop gauging
• Ball screw positioning
• Converting
• Conveying
• Cut-to-length
• Filling
• Food & beverage
• Linear measurement
• Material handling