The PCM5142PW is a monolithic CMOS stereo Digital-to-analog Converter with additional support circuitry. The PCM514x uses the latest generation of TIs advanced segment-DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. It integrates a fully programmable miniDSP core, allowing developers to integrate filters, dynamic range controls, custom interpolators and other differentiating features. The PCM514x provides 2.1VRMS 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 1kR. The integrated PLL on the device removes the requirement for a system clock, allowing a 3-wire I²S connection and reducing system EMI.
DESCRIPTION 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. FEATURES • Programmable miniDSP • Market-Leading Low Out-of-Band Noise • Selectable Digital-Filter Latency and Performance • No DC Blocking Capacitors Required • Integrated Negative Charge Pump • Internal Pop-Free Control For Sample-Rate Changes Or Clock Halts • Intelligent Muting System; Soft Up or Down Ramp and Analog Mute For 120dB Mute SNR With Popless Operation • Integrated High-Performance Audio PLL With BCK Reference To Generate SCK Internally • Accepts 16-, 24-, And 32-Bit Audio Data APPLICATIONS • A/V Receivers • DVD, BD Players • HDTV Receivers • Applications Requiring 2VRMS Audio Output