CS4272 24-Bit, 192 kHz Stereo Audio CODEC D/A Features A/D Features High Performance High Performance 114 dB Dynamic Range 114 dB Dynamic Range -100 dB THD+N -100 dB THD+N Up to 192 kHz Sampling Rates Up to 192 kHz Sampling Rates Differential Analog Architecture Differential Analog Architecture Multi-bit Delta Sigma Conversion Volume Control with Soft Ramp High-pass Filter or DC Offset Calibration 1 dB Step Size Low-Latency Digital Anti-alias Filtering Zero Crossing Click-free Transitions Automatic Dithering of 16-bit Data Selectable Digital Filters Fast and Slow Roll Off Selectable Serial Audio Interface Formats Left Justified up to 24-bit ATAPI Mixing Functions 2 I S up to 24-bit Selectable Serial Audio Interface Formats Left Justified up to 24-bit System Features 2 I S up to 24-bit Direct Interface with 5V to 2.5V Logic Levels Right Justified 16-, 18-, 20-, and 24-Bit Internal Digital Loopback Control Output for External Muting On-chip Oscillator Selectable 50/15 s De-emphasis Stand-Alone or Control Port Functionality 2.5 V to 5 V 3.3 V to 5 V 5 V Hardware or Left and 2 Internal Voltage Internal External I C/SPI Right Mute Reference Oscillator Mute Control Control Data Controls Register / Hardware Configuration Reset Selectable Left Volume Switched Capacitor Modulator Interpolation Differential Control DAC and Filter Filter Output Selectable Right Serial Volume Switched Capacitor Modulator Interpolation Differential DAC and Filter Audio Control Filter Output Input Serial Multibit Left Audio High Pass Filter & Low-Latency Oversampling Differential Output DC Offset Calibration Anti-Alias Filter ADC Input Multibit Right High Pass Filter & Low-Latency Oversampling Differential DC Offset Calibration Anti-Alias Filter ADC Input Copyright Cirrus Logic, Inc. 2005 Cirrus Logic, Inc. AUGUST 05 (All Rights Reserved) www.cirrus.com DS593F1 Level Translator Level Translator PCM Serial Interface / Loopback MixerCS4272 Stand-Alone Mode Feature Set General Description System Features The CS4272 is a high-performance, integrated audio CODEC. The CS4272 performs stereo analog-to-digital Serial Audio Port Master or Slave Operation (A/D) and digital-to-analog (D/A) conversion of up to Internal Oscillator for Master Clock 24-bit serial values at sample rates up to 192 kHz. D/A Features The D/A offers a volume control that operates with a Auto-mute on Static Samples 1 dB step size. It incorporates selectable soft ramp and 44.1 kHz 50/15 s De-emphasis Available zero crossing transition functions to eliminate clicks and Selectable Serial Audio Interface Formats pops.Left Justified up to 24-bit 2I S up to 24-bit The D/As integrated digital mixing functions allow a va- riety of output configurations ranging from a channel A/D Features swap to a stereo-to-mono downmix. Automatic Dithering for 16-bit Data High-pass Filter Standard 50/15 s de-emphasis is available for sam- Selectable Serial Audio Interface Formats pling rates of 32, 44.1, and 48 kHz for compatibility with digital audio programs mastered using the 50/15 s pre-Left Justified up to 24-bit 2 emphasis technique.I S up to 24-bit Integrated level translators allow easy interfacing be- Software Mode Feature Set tween the CS4272 and other devices operating over a System Features wide range of logic levels. Serial Audio Port Master or Slave Operation An on-chip oscillator eliminates the need for an external Internal Oscillator for Master Clock crystal oscillator circuit. This can reduce overall design Internal Digital Loopback Available cost and conserve circuit board space. The CS4272 au- tomatically uses the on-chip oscillator in the absence of D/A Features an applied master clock, making this feature easy to Selectable Auto-mute use. Selectable Interpolation Filters Selectable 32-, 44.1-, and 48-kHz De-emphasis Independently addressable high-pass filters are avail- Filters able for the right and left channel of the A/D. This allows Configurable ATAPI Mixing Functions the A/D to be used in a wide variety of applications Configurable Volume and Muting Controls where one audio channel and one DC measurement Selectable Serial Audio Interface Formats channel is desired.Left Justified up to 24-bit The CS4272s wide dynamic range, negligible distor- 2I S up to 24-bit tion, and low noise make it ideal for applications such asRight Justified 16, 18, 20, and 24-bit A/V receivers, DVD-R, CD-R, digital mixing consoles, effects processors, set-top box systems, and automo- A/D Features tive audio systems. Selectable Dithering for 16-bit Data Selectable High-pass Filter or DC Offset Calibration Selectable Serial Audio Interface FormatsLeft Justified up to 24-bit 2I S up to 24-bit Ordering Information Product Description Package Pb-Free Grade Temp Range Container Order Tube CS4272-CZZ Commercial -10 to +70C Tape & Reel CS4272-CZZR 24-Bit, 192 kHz 28-pin CS4272 YES Stereo Audio CODEC TSSOP Tube CS4272-DZZ Automotive -40 to +85 C Tape & Reel CS4272-DZZR CDB4272 CS4272 Evaluation Board No - - - CDB4272 2 DS593F1