CS5346

CS5346 103-dB, 192-kHz, Stereo Audio ADC with 6:1 Input Mux ADC Features  Multi-bit Delta–Sigma Modulator  103 dB Dynamic Range  -95 dB THD+N  Stereo 6:1 Input Multiplexer  Programmable Gain Amplifier (PGA) – ± 12 dB Gain, 0.5-dB Step Size – Zero-crossing, Click-free Transitions  Stereo Microphone Inputs – +32 dB Gain Stage – Low-noise Bias Supply  Up to 192 kHz 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 Compatible 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 kHz. A 6:1 stereo input multiplexer is included for selecting between line-level and microphone-level inputs. The microphone input path includes a +32 dB gain stage and a low-noise bias voltage supply. The PGA is available for line or microphone inputs and provides gain/attenuation of ±12 dB in 0.5 dB 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 kHz to 192 kHz in either Slave or Master Mode. Integrated...