Features and Benefits
- 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).
- Smart Phones
- Tablet PCs
Product Lifecycle 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)
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.
- Smart Phones
- Tablet PCs
Features & 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
Documentation & 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.
Support & Discussions
Sample & Buy
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.