Analog Devices Inc./Maxim Integrated MAX14585AEVB+T

Overview

MAX14585AEVB+T from Maxim Integrated is a 10-pin UTQFN evaluation board for the MAX14585A dual-channel Hi-Speed USB (480Mbps) and audio analog switch, supporting negative-swing signals down to –1.8V on the ANO_ path and featuring 28V-tolerant VBUS detection (VB input). It enables seamless automatic switching between USB and audio paths in portable devices such as smartphones and tablets.

For engineers reviewing the MAX14585AEVB+T datasheet, MAX14585AEVB+T pinout, MAX14585AEVB+T application, or MAX14585AEVB+T equivalent, this evaluation kit provides verified layout, signal integrity validation, and functional demonstration of the MAX14585A IC's USB/audio multiplexing, VBUS-triggered auto-selection, and low-distortion analog pass-through under real-world supply and thermal conditions.

Technical Context

The MAX14585AEVB+T is a dedicated evaluation platform for the MAX14585A DPDT analog/USB switch IC. It implements the full functional configuration shown in the MAX14585A typical operating circuit - including VCC bypassing (0.1µF), VB pull-up network, AOR control logic, and COM/UNC/ANO routing - with impedance-controlled 45Ω single-ended / 90Ω differential USB traces and optimized ground plane partitioning.

It supports both power modes: normal operation from 2.7V–5.5V VCC and dead-battery fallback when VB ≥ 4.5V powers the device. The board validates key performance metrics including 960MHz bandwidth, <0.04% THD+N, ±15kV HBM ESD robustness on COM pins, and sub-120µs turn-on/turn-off timing across temperature (–40°C to +85°C).

Key Specifications

Availability

MAX14585AEVB+T is available at Aetrix Electronics and suitable for smartphone reference design, tablet audio-USB mux qualification, and portable device ESD robustness testing requiring stable component supply and pre-validated PCB layout.

Supply support for MAX14585AEVB+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and high-reliability ICs for industrial, automotive, communications, and consumer applications.

The MAX14585AEVB+T belongs to Maxim's interface & signal-path evaluation kit product line, engineered to accelerate design-in of high-speed analog/USB multiplexers in space-constrained portable electronics with stringent ESD and signal-integrity requirements.

FAQ

What is the primary function of the MAX14585AEVB+T?

The MAX14585AEVB+T is an evaluation board specifically designed to demonstrate and validate the MAX14585A dual-pole/double-throw (DPDT) switch IC. It enables engineers to verify real-world performance of Hi-Speed USB (480Mbps) and audio signal multiplexing, including VBUS-triggered auto-switching, negative-signal handling down to –1.8V, and ±15kV HBM ESD robustness - all using the exact 10-pin UTQFN package and layout guidelines specified for production use of the MAX14585A.

Does the MAX14585AEVB+T include the MAX14585A IC?

Yes, the MAX14585AEVB+T includes one mounted MAX14585A IC in its 10-pin UTQFN package (top mark "AAZ"). The board is fully assembled and tested, with all required passive components - including 0.1µF VCC bypass capacitor, VB pull-up network, and proper grounding - pre-installed to replicate the recommended operating circuit from the MAX14585A datasheet.

How does the MAX14585AEVB+T support dead-battery operation validation?

The MAX14585AEVB+T enables verification of the MAX14585A's dead-battery mode by allowing direct application of ≥4.5V to the VB pin while VCC is unpowered or grounded. When VB exceeds 4.5V, the MAX14585A self-powers from VB and maintains full functionality - including USB/audio switching and signal integrity - which the MAX14585AEVB+T validates via accessible test points and routed signal paths matching the IC's absolute maximum ratings and electrical characteristics.

Can the MAX14585AEVB+T be used to evaluate THD+N and bandwidth performance?

Yes, the MAX14585AEVB+T provides SMA connectors and impedance-matched 90Ω differential / 45Ω single-ended trace routing for accurate measurement of THD+N (<0.042%) and –3dB bandwidth (960MHz) on both UNC_ and ANO_ channels. Its layout adheres to Maxim's signal-integrity guidelines, enabling direct oscilloscope or network analyzer connection to validate audio fidelity and USB eye diagram compliance per the MAX14585A's published AC performance specifications.

Is the MAX14585AEVB+T RoHS-compliant and lead-free?

Yes, the MAX14585AEVB+T uses RoHS-compliant materials and lead-free assembly throughout. The "+T" suffix in the part number confirms tape-and-reel packaging with lead(Pb)-free/RoHS-compliant construction, and the MAX14585A IC itself carries the "+" designation per Maxim's package coding, indicating full compliance with EU RoHS Directive 2011/65/EU and JEDEC J-STD-609 standards.