CM6542-USB (Type-C)超低功率音频单芯片

CM6542 电子元器件 C-MEDIA 封装QFN-48 USB (Type-C)超低功率音频单芯片

DESCRIPTION
The CM6542 is the new generation ultra-low-power
USB audio single chip designed especially for mobile
USB-C headset, audio adapter or dock applications. It
features cap-less/anti-pop headphone driver,
combo-jack swap & jack-detection, google buttons
detection, embedded oscillator, flash, tri-color LED
PWM driver, Digital EQ, DC-DC converter, etc., which
can fulfill cost-effective, low-power, and versatile USB
Type-C Audio accessories in a concise design for
Android smartphones, tablets, New iPad Pro(2018),
and PC. It also supports automatic power-down and
active modes switch when the 3.5mm headset is
unplugged or plugged-in to save the power
consumption in USB-C audio adapter/dongle
applications. Besides, it has google headset 4-button
in-line control detection and CTIA/OMTP typed
headset/headphone auto switch. The integrated
digital EQ and tri-color LED driver can bring more
differentiation to the USB-C audio accessories. Up-to
-96KHz/24bit codec support can facilitate Hi-Res Audio
products.

FEATURES
Supports complete power management with auto
power-down mode (no 3.5mm headset plug-in)
Ultra-low-power consumption design with internal
DC-DC converter (@USB5V) : 0A @ power-down;
12.7mA @standby; 19.1mA @active playback
Accepts USB 5V or 3.3V power supply
Embedded 8051 MCU with internal 512KB flash
Embedded oscillator for Crystal-less design
True Cap-less/zero-ground headphone driver with
patent applied anti-pop technology
Supports OMTP and CTIA 4-ring combo jack auto
switch and jack detection
Supports 4 in-line google buttons headset detection
Built-in 5-band parametric Equalizer for both
playback and recording
Integrated Tri-Color LED PWM driver
2-ch DACs w/ 97dB SNR; 1-ch ADC 89dB SNR
Up to 96KHz/24bit Hi-Res playback or recording
Built-in S/PDIF transmitter
USB2.0 Full-Speed and USB Audio Device Class 1.0
Small QFN-48 package (5x5 mm)