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