CSRA6620

CSRA6620

DDFA amplifier technology controller and feedback processor

Qualcomm CSRA6620 and Qualcomm DDFA are products of Qualcomm Technologies, Inc., and/or its subsidiaries.

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Product Brief

Product Brief

DDFA amplifier technology

DDFA digital amplifier technology is designed to combine the power advantages of class D amplifiers with the high performance of traditional linear amplifiers, engineered to perfectly balance efficiency and audio quality to help deliver a superior listening experience.

Features

  • DDFA Digital PWM modulator

  • Analog feedback processor

  • Integrated microcontroller and OTP Memory

  • Power management unit with single input power supply

  • Configurable DSP

  • Cascade mode with four CSRA6620 combined for up to 8 channels output.

  • AD and BD modulation options with support for discrete and monolithic output stages

Specifications

General Audio

Audio Technology: Qualcomm® DDFA™ amplifier technology

Noise floor modulation: <2dB (-60dBFS to 0dBFS)

Residual noise: 35μVrms @ 1Khz

Signal-To-Noise Ratio: 113dB, A-wt, 20Hz to 20Khz

Stereo Crosstalk: -103dB @ 1Khz

Input Sample Rate: Up to 384 KHz

Audio Playback

Playback Dynamic Range: Up to 113dB, 20Hz to 20Khz

Total Harmonic Distortion + Noise (THD+N), Playback: 20Hz to 20Khz, < 0.002%

Interface

Supported Interfaces: I²C, SPI

Package

Package Type: QFN

Pitch: 0.4mm Pitch

Package Size: 9 x 9 mm

    Compare related products.

    Product
    CSRA6620
    CSRA6640
    Noise floor modulationResidual noiseSignal-To-Noise RatioStereo CrosstalkInput Sample RatePlayback Dynamic RangeTotal Harmonic Distortion + Noise (THD+N), PlaybackPackage TypePitchPackage Size
    <2dB (-60dBFS to 0dBFS)
    35μVrms @ 1Khz
    20Hz to 20Khz
    A-wt
    113dB
    -103dB @ 1Khz
    Up to 384 KHz
    Up to 113dB
    20Hz to 20Khz
    20Hz to 20Khz
    < 0.002%
    QFN
    0.4mm Pitch
    9 x 9 mm
    <2dB (-60dBFS to -1dBFS)
    < 35μVrms (AD modulation)
    >112dB (AD 400kHz modulation, A-wt, 1kHz, 0dBFS)
    -103dB @ 1Khz
    Up to 384 KHz
    Up to 113dB
    20Hz to 20Khz
    20Hz to 20Khz
    < 0.002%
    QFN
    0.4mm Pitch
    9 x 9 x 0.9 mm

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