MAX20328

PRODUCTION

MUX Switch for USB Type-C Audio Adapter Accessories

OVP and Surge Protected Audio Accessory Switch for USB Type-C

Data Sheet (Rev. 3) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.80

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Overview

Versatile and Flexible Switch Configurations
- High-Speed USB Data or Audio Switch Paths
- Automatic Impedance Detection in Audio Configurations
- Full Manual Switch Control
- Beyond-the-Rails™ Signal Capability
Overvoltage Protected Data and Audio Channels
- Two Separate OVLO Blocks
- OVLO Threshold Programmable to 3.37V, 4.00V, 4.70V, or 5.00V
Negative Voltage Capable Audio Channel
- ±5V Audio Signals (Limited by Positive OVLO Threshold)
- -100dB THD+N
- -100dB PSRR at 217Hz
High ESD and Surge-Protected USB Type-C Contacts
- ±12kV HBM
- ±25V Surge Capable on USB Type-C Pins
Minimal Solution size
- 5 x 5 Array, 0.4mm Pitch 2.31mm x 2.31mm WLP

The MAX20328/MAX20328A/MAX20328B are USB Type-C audio interface ICs for use in portable devices. As USB Type-C and USB power delivery (PD) make a high-voltage charging solution readily available, the data and SBU lines are at risk of shorting to a high bus voltage, risking permanent damage to the portable device. USB 2.0 data lines also need protection when multiplexed with analog audio signals that vary from positive to negative voltages. The devices can detect a CC pin connection event to disable the microphone bias and eliminate pop up noise when an audio accessory is attached.

The MAX20328/MAX20328A/MAX20328B come in a 5 x 5 array, 25-bump, 0.4mm pitch, 2.31mm x 2.31mm wafer-level package (WLP).

Applications

Phablets
Smart Phones
Tablet PCs

Part Models: 2
1ku List Price: Starting From $1.80

Documentation

Data Sheet 1

MAX20328-MAX20328B: MUX Switch for USB Type-C Audio Adapter Accessories Data Sheet (Rev.3) 02/28/2020

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. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX20328EWA+	25-WLCSP-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX20328EWA+T	25-WLCSP-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX20328/MAX20328A/MAX20328B

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Features and Benefits

Automatic MIC/GND Orientation Detection
- MIC Line Bias Check Safeguards Against Shorting MIC to GND
3.5mm Audio Jack for Testing with Audio Signals
Onboard USB Receptacles for Passing and Measuring Data Signals
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX20328A evaluation kit (EV kit) is a fully assembled and tested circuit for evaluating theMAX20328/ MAX20328A/MAX20328B MUX switch for USB-C audio adapter applications. The device features automatic MIC-GND orientation and headphone impedance detection, Beyond-the-Rails™ signal capability, and surge protection on pins attached to the USB-C connector. This EV kit enables fast and easy evaluation of the MAX20328/ MAX20328A/MAX20328B switches in USB-C audio applications.

The EV kit is populated with MAX20328A. The MAX20328, MAX20328A, and MAX20328B are pin-to-pin and register compatible. Users can install their own MAX20328 for evaluation.

Applications

Phablets
Smart Phones
Tablet PCs

Resources

MAX20328AEVKIT ODB File - Design Files
1/1/0001

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