Audio Codec 1ADC / 2DAC 24-Bit 65-Pin FBGA T/R

The CS42L73 is a highly integrated, low-power, audio and telephony CODEC for portable applications such as smartphones and ultra mobile personal computers. The CS42L73 features a flexible clocking architecture, allowing the device to use reference clock frequencies of 6, 12, 24, 13, 26, 19.2, or 38.4 MHz, or any standard audio master clock. As many as two reference/master clock sources may be connected; either one can be selected to drive the internal clocks and processing rate of the CS42L73. Thus, multiple master clock sources within a system can be dynamically activated and de-activated to minimize system-level power consumption.

• Stereo analog-to-digital converter (ADC)
• Dual analog or digital mic support
• Dual mic bias generators
• Four digital-to-analog converters (DACs) coupled to five outputs
  • Ground-centered stereo headphone amp.
  • Ground-centered stereo line output
  • Mono ear speaker amplifier
  • Mono 1-W speakerphone amplifier
  • Mono speakerphone line output for stereo speakerphone expansion
• Three serial ports with asynchronous sample rate converters
• Digital audio mixing and routing