GENERAL DESCRIPTION

The CS43L21 is a highly integrated, 24-bit, 96 kHz, low power stereo DAC. Based on multi-bit, delta-sigma modulation, it allows infinite sample rate adjustment between 4 kHz and 96 kHz. The DAC offers many features suitable for low power, portable system applications.

FEATURES

♦ 98 dB Dynamic Range (A-wtd)

♦ -86 dB THD+N

♦ Headphone Amplifier - GND Centered

– On-Chip Charge Pump Provides -VA_HP

– No DC-Blocking Capacitor Required

– 46 mW Power Into Stereo 16 Ω @ 1.8 V

– 88 mW Power Into Stereo 16 Ω @ 2.5 V

– -75 dB THD+N

♦ Digital Signal Processing Engine

– Bass & Treble Tone Control, De-Emphasis

– PCM Mix w/Independent Vol Control

– Master Digital Volume Control and Limiter

– Soft Ramp & Zero Cross Transitions

♦ Beep Generator

– Tone Selections Across Two Octaves

– Separate Volume Control

– Programmable On & Off Time Intervals

– Continuous, Periodic or One-Shot Beep Selections

♦ Programmable Peak-Detect and Limiter

♦ Pop and Click Suppression

APPLICATIONS

♦ Portable Audio Players

♦ MD Players

♦ PDAs

♦ Personal Media Players

♦ Portable Game Consoles

♦ Smart Phones

♦ Wireless Headsets