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A/D Converters

CS5312B

High-performance 2-channel analog-to-digital converter
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CS5312B Overview

The CS5312B is part of a new series of pro-audio converters aimed at giving cost-effective transparent audio conversion. All within one device that is easy to use and provides system level cost savings. The CS5312B is a high-performance, 32-bit resolution, two-channel ADC. The CS5312B supports differential analog input and 32-bit digital output via the audio serial port (ASP) at sample rates up to 384 kHz. The CS5312B uses a 5th-order, multibit sigma-delta modulator followed by digital filtering and decimation. This provides a dynamic range of over 111 dB and THD+N below -107 dB all within a 25 mW/ch power budget. The device can be powered from a single rail and controlled by either hardware pins, I2C or SPI, making it both flexible and easy to integrate. This, together with Cirrus Logic’s analog gain feature, makes the CS5312B ideal for digital mixing consoles, DAW interfaces, effects processors, musical instruments and audio/video receivers.

Learn more about Cirrus Logic’s high-performance audio solutions.

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Product Features

  • High-performance two-channel ADC

    • Differential analog architecture

    • High-resolution 32-bit digital architecture

    • Low-latency digital filters and digital volume control

  • Crystal oscillator interface

  • Sample timing alignment across multiple devices

  • Virtual passive attenuation device (PAD)

  • Clip detection

  • Signal activity detection

  • Audio serial port (ASP) sample rates up to 384 kHz

    • I2S, left-justified, and TDM data formats

  • Hardware and software control modes

    • Hardware control with no host processor required

    • I2C control port up to 1 MHz

    • SPI control port up to 24 MHz

  • Single-supply operation at 3.3 V

  • Support for 1.8 V–3.3 V digital input/output

Parametric Specifications

Analog Input TypeDifferential
Channels In2
ADC Dynamic Range (dB)111
ADC THD+N (dB)-107
Sample Rate (kHz)384
Resolution (bits)32
Analog Power Supply (V)3.3
Digital Power Supply (V)3.3
Logic Power Supply (V)1.8-3.3
Target MarketPro Audio
Package40 QFN

Design Resources

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Evaluation Boards

  • CS5312B A/D Converter Evaluation Board (DC5312B-ADC)

    The DC5312B-ADC evaluates the Cirrus Logic CS5312B high-performance two-channel audio ADC. A daughter card for the CDB-PROAUDIO system, it provides a differential input buffer circuit and hardware or software control.

    Order SampleUser Guide
  • Pro Audio Evaluation System (CDB-PROAUDIO)

    Pro Audio Evaluation System (CDB-PROAUDIO)

    The CDB-PROAUDIO is the motherboard platform for evaluating Cirrus Logic high-performance ADC, DAC and codec devices. It provides analog and S/PDIF I/O, 8-channel USB streaming via the Jura module, and accepts device-specific daughter cards.

    Order SampleUser Guide
  • ETLUM2-SOM USB Control Audio Streaming Board

    ETLUM2-SOM USB Control Audio Streaming Board

    Order Sample

Software Packages

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