DESCRIPTIONS AND OVERVIEW

CM102-A+/102S+ series is a highly integrated single chip for USB stereo speakers application. Minimum external components are needed for building an USB speaker system, which makes CM102-A+/102S+ a simple and very cost-effective solution. Since no driver is necessary for audio playback on all major OS. CM102-A+/102S+ provides a truly plug-and-play feature for external digital audio playback.

FEATURES

● USB 2.0 Full Speed Compatible and USB IF Certification

● USB audio device class specification v1.0 Compatible

● USB bus powered 500mA operation with suspend mode support

● USB audio function topology has 1 input terminal, 1 output terminal, and 1 feature unit

● Embedded high performance 16 bit stereo audio DAC

● Embedded Digital Control Power Amplifier for Speaker Driving

● Embedded power on reset block and Power amplifier enable / disable control pin

● Embedded X2 Modulation for Higher Audio Quality

● Embedded Anti-Pop Circuit with Internal Feedback Structure

● Embedded 5V to 3.3V Regulator with Voltage Level Detector for Single 5V External Power Supply

● Alternate zero bandwidth setting for releasing bandwidth on USB bus during inactive operation

● Single 12MHz crystal input with on-chip PLL and embedded USB transceiver

● Support Dynamic Range Control (DRC) Feature to Provide a Better Listen Experience

● Volume control input with simple external VR circuit

● Isochroous transfer using adaptive synchronization with internal PLL

● High performance 16-Bit Stereo, 48 / 44.1 KHz Sampling Rate for Audio Playback

● 3.3V IO with 5V tolerance; 3.3V core logics design

● GPIO pin for application specific usage

● Support S/PDIF output interface

● LED Indicator Pin During Playback

● Compatible with Win 98SE / Win ME / Win 2000 / Win XP, and Mac OS 9 / OS X without additional driver

● USB Software Drive Xear 3D Sound Technology With HRTF 3D, EAXTM, Speaker Shifter and Virtual 7.1CH effects for free bundle

● Compact 18 pin PDIP and SOP package