Description

The CS42L51C is a highly integrated, 24-bit, 96 kHz, low power stereo CODEC. It is suitable for low power, portable system applications. The CODEC is based on multi-bit, delta-sigma modulation, allowing for infinite sample rate adjustment between 4 kHz and 96 kHz.

Specifications and features

• 24-bit Converters
• 4 kHz to 96 kHz Sample Rate
• Multi-bit Delta Sigma Architecture
• Low Power Operation:
  • Stereo Playback: 12.93 mW @ 1.8 V
  • Stereo Record and Playback: 20.18 mW @ 1.8 V
• Variable Power Supplies:
  • 1.8 V to 2.5 V Digital & Analog
  • 1.8 V to 3.3 V Interface Logic
• Power Down Management: ADC, DAC, CODEC, MIC Pre-Amplifier, PGA
• Software Mode (I²C & SPI™ Control)
• Hardware Mode (Stand-Alone Control)
• Digital Routing/Mixes:
  • Analog Out = ADC + Digital In
  • Digital Out = ADC + Digital In
  • Internal Digital Loopback
  • Mono Mixes
• Flexible Clocking Options:
  • Master or Slave Operation
  • High-Impedance Digital Output Option (for easy MUXing between CODEC and Other Data Sources)
  • Quarter-Speed Mode - (i.e. Allows 8 kHz Fs while maintaining a flat noise floor up to 16 kHz)

Application Scenarios

The CS42L51C CODEC is commonly used in the following applications:

• HDD & Flash-Based Portable Audio Players
• MD Players/Recorders
• PDAs
• Personal Media Players
• Portable Game Consoles
• Digital Voice Recorders
• Digital Camcorders
• Digital Cameras
• Smart Phones

Comparison

- Highly integrated

- Low power consumption

- Wide sample rate adjustment range

- No specific disadvantages have been reported for this model.