CS4265 104 dB, 24-Bit, 192 kHz Stereo Audio CODEC D/A Features A/D Features Multi-Bit Delta Sigma Modulator Multi-Bit Delta Sigma Modulator 104 dB Dynamic Range 104 dB Dynamic Range -90 dB THD+N -95 dB THD+N Up to 192 kHz Sampling Rates Stereo 2:1 Input Multiplexer Programmable Gain Amplifier (PGA) Single-Ended Analog Architecture 12 dB Gain, 0.5 dB Step Size Volume Control with Soft Ramp Zero Crossing, Click-Free Transitions 0.5 dB Step Size Pseudo-Differential Stereo Line Inputs Zero Crossing, Click-Free Transitions Stereo Microphone Inputs Popguard Technology +32 dB Gain Stage Minimizes the Effects of Output Transients Low-Noise Bias Supply Filtered Line-Level Outputs Up to 192 kHz Sampling Rates Selectable Serial Audio Interface Formats Left-Justified up to 24-bit Selectable Serial Audio Interface Formats IS up to 24-bit Left-Justified up to 24-bit Right-Justified 16-, 18-, 20-, and 24-bit IS up to 24-bit High-Pass Filter or DC Offset Calibration Selectable 50/15 s De-Emphasis 1.8 V to 5 V 3.3 V to 5 V 3.3 V to 5 V Volume Interpolation Multibit Switched Capacitor Left DAC Output DAC and Filter Control Filter Modulator Serial Mute Audio Mute Control Control Input Volume Interpolation Multibit Switched Capacitor Right DAC Output Control Filter Modulator DAC and Filter Serial Audio Output IEC60958-3 Transmitter Transmitter Output Internal Voltage Mic Bias Microphone Bias 2 Reference I C Control Data High Pass Low-Latency Multibit +32 dB PGA Filter Anti-Alias Filter Oversampling Mic Input ADC 1 & 2 Reset +32 dB MUX Multibit Stereo Low-Latency High Pass Oversampling PGA Line Input Anti-Alias Filter Filter ADC Copyright Cirrus Logic, Inc. 2012 AUG 12 (All Rights Reserved) DS657F3 CS4265 System Features General Description Synchronous IEC60958-3 Transmitter The CS4265 is a highly integrated stereo audio CO- Up to 192 kHz Sampling Rates DEC. The CS4265 performs stereo analog-to-digital 75 Drive Capability (A/D) and digital-to-analog (D/A) conversion of up to 24-bit serial values at sample rates up to 192 kHz. Serial Audio Data Input Multiplexer A 2:1 stereo input multiplexer is included for s electing Internal Digital Loopback between line-level or microphone-level inputs. The mi- Supports Master or Slave Operation crophone input path includes a +32 dB gain stage and Mute Output Control a low noise bias voltage supply. The PGA is available Power-Down Mode for line or microphone inputs and provides gain or atten- Available for A/D, D/A, CODEC, Mic uation of 12 dB in 0.5 dB steps. Preamplifier The output of the PGA is followed by an advanced 5th- +3.3 V to +5 V Analog Power Supply order, multi-bit delta sigma modulator and digital filter- ing/decimation. Sampled data is transmitted by the +3.3 V to +5 V Digital Power Supply serial audio interface at rates from 4 kHz to 192 kHz in Direct Interface with 1.8 V to 5 V Logic Levels either Slave or Master Mode. Supports IC Control Port Interface The D/A converter is based on a 4th-order multi-bit delta sigma modulator with an ultra-linear low-pass filter and offers a volume control that operates with a 0.5 dB step size. It in corporates selectable soft ramp and zero crossing transition functions to eliminate clicks and pops. Standard 50/15s de-emphasis is availa ble for a 44.1 kHz sample rate for compatibility with digital audio programs mastered using the 50/15s pre-emphasis technique. Integrated level translators allow easy interfacing be- tween the CS4265 and other devices operating over a wide range of logic levels. The CS4265 is available in a 32-pin QFN package for both Commercial (-10 to +70 C) and Automotive (-40 to +105 C) grade. The CDB4265 is also available for device evaluation and implementation suggestions. Please refer to Ordering Information on page 57 for complete details. 2 DS657F3