Описание
The CS5346 integrates an analog multiplexer, programmablegain amplifier, and stereo audio analog-to-digitalconverter. The CS5346 performs stereo analog-to-digital(A/D) conve rsion of 24-bit serial values at sa mplerates up to 192 kHz.A 6:1 stereo input multiplexer is included for selectingbetween line-level and microphone-level inputs. Themicrophone input path includes a +32 dB gain stageand a low-noise bias voltage supply. The PGA is availablefor line or microphone inputs and providesgain/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 theserial audio interface at rates from 8 kHz to 192 kHz ineither Slave or Master Mode.Integrated level translators allow easy interfacing betweenthe CS5346 and other devices operating over awide range of logic levels.The CS5346 is available in a 48-pin LQFP package inCommercial (-40° to +85° C) grade. The CDB5346 CustomerDemonstration board is also available for deviceevaluation and implementation suggestions.
- 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
