CS5345 Datasheet | Cirrus Logic

104 d B, 24-Bit, 192 k Hz Stereo Audio ADC A/D Features  Multi-Bit Delta Sigma Modulator  104 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 Serial Audio Interface Formats - Left-Justified up to 24-bit - I²S up to 24-bit  High-Pass Filter or DC Offset Calibration System Features  Power-Down Mode  +3.3 V to +5 V Analog Power Supply, Nominal  +3.3 V to +5 V Digital Power Supply, Nominal  Direct Interface with 1.8 V to 5 V Logic Levels  Pin-patible with CS4245 General Description The CS5345 integrates an analog multiplexer, programmable gain amplifier, and stereo audio analog-to-digital converter. The CS5345 performs stereo analog-to-digital (A/D) conversion of up to 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 4 k Hz to 192 k Hz in either Slave or Master Mode. Integrated level translators allow easy interfacing between the CS5345 and other devices operating over a wide range of logic levels. The CS5345 is available in a 48-pin LQFP package in mercial (-10° to +70° C) grade. The CDB5345 Customer Demonstration board is also available for device evaluation and implementation suggestions. Please refer to “Ordering Information” on page 43 for plete details. 1.8 V to 5 V I²C/SPI Control Data Interrupt...