CS5346 Datasheet | Cirrus Logic

Features  Multi-bit Delta- Sigma Modulator  103 d B Dynamic Range  -95 d B THD+N  Stereo 6:1 Input Multiplexer  Programmable Gain Amplifier (PGA) - ± 12 d B Gain, 0.5-d B Step Size - Zero-crossing, Click-free Transitions  Stereo Microphone Inputs - +32 d B Gain Stage - Low-noise Bias Supply  Up to 192 k Hz Sampling Rates  Selectable 24-bit, Left-justified or I²S Serial Audio Interface Formats System Features  Power-down Mode  +5 V Analog Power Supply, Nominal  +3.3 V Digital Power Supply, Nominal  Direct Interface with 3.3 V to 5 V Logic Levels  Pin patible with CS5345 (- See Section 2 for details.) General Description The CS5346 integrates an analog multiplexer, programmable gain amplifier, and stereo audio analog-to-digital converter. The CS5346 performs stereo analog-to-digital (A/D) conversion of 24-bit serial values at sample rates up to 192 k Hz. A 6:1 stereo input multiplexer is included for selecting between line-level and microphone-level inputs. The microphone input path includes a +32 d B gain stage and a low-noise bias voltage supply. The PGA is available for line or microphone inputs and provides gain/attenuation of ±12 d B in 0.5 d B steps. The output of the PGA is followed by an advanced 5thorder, multi-bit delta-sigma modulator and digital filtering/decimation. Sampled data is transmitted by the serial audio interface at rates from 8 k Hz to 192 k Hz in either Slave or Master Mode. Integrated level translators allow easy interfacing between the CS5346 and other devices operating over a wide range of logic levels. The CS5346 is available in a 48-pin LQFP package in mercial (-40° to +85° C) grade. The CDB5346 Customer Demonstration board is also available for device evaluation and implementation suggestions. Please refer to “Ordering Information” on page 38 for plete details. 3.3 V to 5 V I²C/SPI Control Data Interrupt Overflow Reset Serial Audio Output Level Translator Level Translator PCM Serial Interface 3.3 V Register Configuration High...