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MAX13335E
Dual Automotive Differential Audio Receivers with I²C Control and Diagnostics
Programmable Gain Audio Input Amplifiers with I²C Control and Full Automotive Grade Diagnostics Capability
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Key Features
Applications/Uses
Parametric specs for Audio Amp/Line Driver/Receiver ICs
| VSUPPLY (V) | 5 |
| Input Type | Differential |
| # Channels | 2 |
| Adjustable Gain (dB) | -14 to +16 |
| PSRR (dB) (min) | -80 |
| CMRR (dB) (typ) | 80 |
| SNR (dB) | 104.8 |
| Interface | I2C |
| CLOAD Drive Capability | 300pF |
| Oper. Temp. (°C) | -40 to +105 |
| Budgetary Price (See Notes) | 2.32 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | Dual Automotive Differential Audio Receivers with I²C Control and Diagnostics | Jan 15, 2018 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Audio Amp/Line Driver/Receiver ICs
| VSUPPLY (V) | 5 |
| Input Type | Differential |
| # Channels | 2 |
| Adjustable Gain (dB) | -14 to +16 |
| PSRR (dB) (min) | -80 |
| CMRR (dB) (typ) | 80 |
| SNR (dB) | 104.8 |
| Interface | I2C |
| CLOAD Drive Capability | 300pF |
| Oper. Temp. (°C) | -40 to +105 |
| Budgetary Price (See Notes) | 2.32 |
Key Features
- +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
Applications/Uses
- Automotive Telematics
- Connectivity Modules
- Radio Head Units
- RSA/RSE
Description
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.
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.
Technical Docs
| Data Sheet | Dual Automotive Differential Audio Receivers with I²C Control and Diagnostics | Jan 15, 2018 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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