Overview

Features and Benefits

  • +3.3V or +5V Operation
  • +28V to -16V Tolerant Inputs
  • Wide Common-Mode Input Range (-5V to +11.5V)
  • Fully Differential Inputs Up to 7VRMS
  • Quasi-Differential Inputs Up to 3.5VRMS
  • Audio Presence Detection
  • Jack Sense Detection
  • Diagnostic Capability
  • Programmable Gain with Zero-Crossing Detection
  • I2C Control Interface
  • Automotive Grade ESD Protection
    • ISO 10605 ±15kV Air Gap
    • ±8kV Contact Discharge

Product Details

The MAX13335E/MAX13336E are high-fidelity stereo audio input amplifiers designed for automotive applications requiring audio-level detection and/or jack sensing capability.

The devices feature a dual-channel, low-noise, programmable gain amplifier that accepts fully differential and quasi-differential input signals with diagnostics capability controlled through an I²C interface. The devices' audio receiver can also pair with the MAX13325/MAX13326 audio transmitter to form a complete differential audio link in automotive systems.

Each channel of the device features high common-mode rejection ratio (CMRR) (80dB), enabling the recovery of audio signals in the presence of large common-mode noise in automotive environments. An integrated programmable gain amplifier is adjustable from -14dB to +16dB (MAX13335E) and -22dB to +8dB (MAX13336E) with zero-crossing detection to provide an optimum output-signal level and limit zip noise. The external flexible diagnostic inputs can be configured to perform jack sense functions or to detect short-to-battery, short-to-ground, open load, and shorts between channels.

The audio inputs are protected against ISO 10605 ±15kV Air Gap and ±8kV Contact Discharge ESD pulses. Both devices have a -40°C to +105°C operating temperature range, and are available in a 16-pin QSOP package.

Applications

  • Automotive Telematics
  • Connectivity Modules
  • Radio Head Units
  • RSA/RSE

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

Software Development

Product Recommendations

MAX13335E Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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