General Description

The CS43L22 is a highly integrated, low power stereo DAC with headphone and Class D speaker amplifiers. The CS43L22 offers many features suitable for low power, portable system applications.

FEATURES

♦ 98 dB Dynamic Range (A-wtd)

♦ 88 dB THD+N

♦ Headphone Amplifier - GND Centered

– No DC-Blocking Capacitors Required

– Integrated Negative Voltage Regulator

– 2 x 23 mW into Stereo 16 Ω @ 1.8 V

– 2 x 44 mW into Stereo 16 Ω @ 2.5V

♦ Stereo Analog Input Passthrough Architecture

– Analog Input Mixing

– Analog Passthrough with Volume Control

♦ Digital Signal Processing Engine

– Bass & Treble Tone Control, De-Emphasis

– PCM Input w/Independent Vol Control

– Master Digital Volume Control and Limiter

– Soft-Ramp & Zero-Cross Transitions

♦ Programmable Peak-Detect and Limiter

♦ Beep Generator w/Full Tone Control

– Tone Selections Across Two Octaves

– Separate Volume Control

– Programmable On and Off Time Intervals

– Continuous, Periodic, One-Shot Beep Selections