
Cirrus Logic
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 kHz.
A/D Features
♦ Multi-Bit Delta Sigma Modulator
♦ 104 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 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-Compatible with CS4245