PCM5142 - 2V RMS DIRECTPATH 112dB Audio Stereo DAC with PCM interface and fully programmable miniDSP

The PCM514x devices are a family of monolithic CMOS-integrated circuits that include a stereo digital-to-analog converter and additional support circuitry in a small TSSOP package. The PCM514x uses the latest generation of TI’s advanced segment-DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter.

Members of the PCM514x family integrate a fully programmable miniDSP core, allowing developers to integrate filters, dynamic range controls, custom interpolators, and other differentiating features to their products.

The PCM514x provides 2.1-V_RMS ground centered outputs, allowing designers to eliminate DC-blocking capacitors on the output, as well as external muting circuits traditionally associated with single-supply line drivers.

The integrated line driver surpasses all other charge-pump-based line drivers by supporting loads down to 1 kΩ, allowing the PCM514x to drive up to 10 products in parallel, such as LCD TV, DVDR, and AV receivers.

The integrated PLL on the device removes the requirement for a system clock (commonly known as master clock), allowing a 3-wire I²S connection and reducing system EMI.

• Programmable miniDSP
• Market-Leading Low Out-of-Band Noise
• Selectable Digital-Filter Latency and Performance
• No DC Blocking Capacitors Required
• Integrated Negative Charge Pump
• Intelligent Muting System; Soft Up or Down Ramp
  and Analog Mute For 120-dB Mute SNR
• Integrated High-Performance Audio PLL with
  BCK Reference To Generate SCK Internally
• Accepts 16-, 20-, 24-, And 32-Bit Audio Data
• PCM Data Formats: I²S, Left-Justified, Right-
  Justified, TDM / DSP
• SPI or I²C Control
• Software or Hardware Configuration
• Automatic Power-Save Mode When LRCK And
  BCK Are Deactivated
• 1.8-V or 3.3-V Fail-Safe LVCMOS Digital Inputs
• Single Supply Operation:
  3.3-V Analog, 1.8-V or 3.3-V Digital
• Integrated Power-On Reset
• Small 28-pin TSSOP Package