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