Cirrus Logic CS53L21-CNZ

АЦП, аудио324 b96kСерийный1.65V ~ 1.89V, 2.37V ~ 2.63V-10°C ~ 70°CПоверхностный монтаж32-VFQFN Exposed Pad

Overview

The CS53L21-CNZ is a highly integrated, 24-bit, 96 kHz, low power stereo audio A/D converter (ADC). Based on multibit, Delta Sigma modulation, it allows infinite sample rate adjustment between 4 kHz and 96 kHz and offers many features suitable for low power, portable-system applications. The ADC input path allows independent channel control of a number of features. An input multiplexer selects between line-level or microphone-level inputs for each channel. The microphone input path includes a selectable programmable-gain pre-amplifier stage and a low noise MIC bias voltage supply. A PGA is available for line or microphone inputs and provides analog gain with soft ramp and zero cross transitions. The ADC also features a digital volume attenuator with soft ramp transitions. A programmable ALC and Noise Gate monitor the input signals and adjust the volume levels appropriately. The Signal Processing Engine (SPE) controls left/right channel volume mixing, channel swap and channel mute functions. All volume-level changes may be configured to occur on soft ramp and zero cross transitions. In addition to its many features, the CS53L21-CNZ operates from a single, low-voltage analog and digital core power supply, making this ADC ideal for applications such as portable audio players, digital microphones, digital voice recorders, voice recognition systems and audio/video capture cards.

Features

Applications

• Cell Phones
• Digital Multimeters, PLC's (Programming Logic Controllers)
• RADAR processing, digital oscilloscopes
• CMOS Image sensors for mobile applications
• Medical Instrumentation and medical imaging
• Music recording
• Digital signal processing
• Scientific instruments
• Rotary encoder
• Displaying