INT CS43131 130-dB, 32-Bit High-Performance DAC with Integrated Headphone Driver and Impedance Detection System Features Direct Stream Digital (DSD ) path Enhanced oversampling DAC architecture Up to 256Fs DSD 32-bit resolution Patented DSD processor Up to 384-kHz sampling rate On-chip 50-kHz filter to meet Scarlet Book Super Audio Compact Disk (SACD) recommendations Low clock jitter sensitivity Matched PCM and DSD analog output levels Auto mute detection Nondecimating volume control with 0.5-dB step size Integrated high performance, ground-centered stereo and soft ramp headphone outputs DSD and Pulse-code modulation (PCM) mixing for 130-dB dynamic range (A-weighted) alerts 115-dB total harmonic distortion + noise (THD+N) Dedicated DSD and DoP pin interface 110-dB interchannel isolation Serial audio input path Up to 2-V stereo output rms Programmable Hi-Fi digital filter Headphone power output Five selectable digital filter responses 30 mW per channel into 32 Low-latency Mode minimizes pre-echo 5 mW per channel into 600 110 dB of stopband attenuation Headphone detection Supports sample rates from 32 to 384 kHz Headphone DC and AC impedance measurement 2 I S, right-justified, left-justified, TDM, and Headphone plug-in detection DSD-over-PCM (DoP) interface Popguard technology eliminates pop noise Master or slave operation Integrated PLL Volume control with 0.5-dB step size and soft ramp Support for 11.2896-/22.5792-, 12.288-/24.576-, 9.6-/ 44.1 kHz deemphasis and inverting feature 19.2-, 12-/24-, and 13-/26-MHz system MCLK rates Alternate headphone input Reference clock sourced from XTI/MCLK pin 40-pin 5mm 5mm QFN or 42-ball CSP package options System clock output Applications Mono Mode (differential) support Smart phones, tablets, portable media players, laptops, 2 I C controlup to 1 MHz digital headphones, powered speakers, AVR, home Wideband Flatness Mode Support theater systems, Blu-ray/DVD/SACD players, and pro audio Interface Internal Analog Supply Supply (VD) Supply (VL) (VA,VCP) TSO Battery Supply +1.8V +1.8V FILT+ FILT- HPINA +1.8V (VP) FLYC VCP FLYP VCP FLYN VCP Interrupt Internal VCP FILT+ Digital LDOs Sources Voltage Charge Pump VCP FILT - Reference Digital Core FLYP VA FLYN VA -VA Interpolation VA PLL VCP FILT + CLKOUT Filter and Multibit Volume DAC and + Control Filter HPOUTA Modulator XTAL XTO OSC -VA VCP FILT- VA Interpolation XTI/MCLK VCP FILT+ Filter and Multibit DAC and SCLK1 Volume + ASP Filter Control HPOUTB Modulator LRCK1 -VA SDIN1 VCP FILT - DoP to DSDCLK/SCLK2 XSP/DSD DSD DSD DSDB/LRCK2 Engine Audio Processor Interface DSDA/SDIN2 HP Detect, HPREFA Popguard HP Impedance HPREFB Circuitry Detect and Register /Hardware HP DETECT Control Port Level Translator Measure Configuration SDA SCL HPINB ADR RESET Copyright Cirrus Logic, Inc. 20152017 DS1155F1 (All Rights Reserved) OCT 17 CS43131 General Description The CS43131 is a high-performance, 32-bit resolution, stereo audio DAC that supports up to 384-kHz sampling frequency with integrated low-noise ground-centered headphone amplifiers. The advanced 32-bit oversampled multibit modulator with mismatch shaping technology eliminates distortion due to on-chip component mismatch. Proprietary digital-interpolation filters support five selectable filter responses with pseudo-linear phase and ultralow latency to minimize pre-echos and ringing artifacts. An on-chip programmable filter is available for further response customization. Other features include volume control with 0.5-dB steps, wideband flatness mode support, and digital deemphasis for 44.1-kHz sample rate. The integrated ground-centered stereo headphone amplifiers are capable of delivering more than 30 mW into 32- load or 5 mW into 600- load per channel at full performance. It is also capable of generating 2 V on a 600- load. rms Proprietary headphone impedance detection enables wide-band impedance detection for further digital post-processing. An internal stereo audio switch with true bypass supports an alternate analog input path for interfacing with external audio sources to minimize the overall bill-of-materials cost and PCB area. The patented on-chip DSD processor preserves audio integrity by allowing signal processing such as volume control and 50-kHz Scarlet Book recommended filtering to be applied directly to the DSD stream without an intermediate decimation stage. Additional features like volume matching and channel mixing enable seamless transition between DSD and PCM playback paths. 2 The CS43131 accepts I S, right-justified, left-justified, and TDM-format PCM data at sample rates from 32 to 384 kHz. The 2 industry-standard high-speed I C interface capable of up to 1-MHz operation provides easy configuration control. An integrated PLL allows for maximum clocking flexibility in any system. Popguard technology eliminates output transients upon power-up or power-down events. The CS43131 is available in a commercial-grade 42-ball WLCSP or 40-pin QFN package for operation from 10C to +70C. 2 DS1155F1