Low Voltage, Stereo CODEC with Headphone Amplifier

The CS42L50 is a highly integrated, 24-bit, 96 kHz, audio CODEC.

This device is based on Delta-Sigma modulation, allowing infinite adjustment of the sample rate between 8 kHz and 100 kHz simply by changing the master clock frequency.

The CS42L50 contains a 2:1 stereo MUX, programmable analog gain control, and digital attenuation on the analog inputs. The output D/A converters include digital bass, treble boost, dynamic range compression, limiting, mixing, volume control, and de-emphasis.

The CS42L50 operates from a 1.8 to 3.3V supply. These features are ideal for portable MP3 and mini-disc recorders, CD and DVD recorders, digital camcorders, and other portable systems that require extremely low power consumption in a minimal amount of space.

• 24-bit conversion / 96 kHz sample rate
• 96 dB ADC/DAC dynamic range at 3V supply
• -88/-85 dB ADC/DAC THD+N
• Microphone/line input amplifier with up to 32 dB of gain
• 2:1 stereo MUX
• Digital volume control on inputs and outputs
  • 96 dB attenuation, 1 dB step size
• Digital bass and treble boost on outputs
  • Selectable corner frequencies
• Dynamic range compression and limiting
• De-emphasis for 32 kHz, 44.1 kHz, and 48 kHz
• Headphone amplifier
  • 26 mW power output into 16 W load @ 3V supply
  • -80 dB THD+N
  • 34 dB analog attenuation and mute
• ATAPI mixing functions
• 1.8 to 3.3V supply
• 19 mW playback power consumption @ 1.8V
• Package: 28-pin CASON