The MAX3420E contains the digital logic and analog circuitry necessary to implement a full-

 

speed USB peripheral compliant to USB specification rev 2.0. A built-in full-speed transceiver

 

features ±15kV ESD protection and programmable USB connect and disconnect. An internal

MAX3420

serial-interface engine (SIE) handles low-level USB protocol details such as error checking

and bus retries. The MAX3420E operates using a register set accessed by an SPI™

 

interface that operates up to 26MHz. Any SPI master (microprocessor, ASIC, DSP, etc.) can

 

add USB functionality by using the simple 3- or 4-wire SPI interface.

 

Additional information:

 

www.maxim-ic.com/MAX3420

 

 

 

The MAX4785–MAX4788 family of switches feature internal current limiting to prevent host

 

 

devices from being damaged due to faulty load conditions. These analog switches have a low

 

0.7Ω￿on-resistance and operate from a 2.3V to 5.5V input voltage range. They are available

 

with guaranteed 50mA and 100mA current limits, making them ideal for load-switching

MAX4788

applications.

 

 

 

Additional information:

 

www.maxim-ic.com/MAX4788

 

 

 

7 Navigation Menu

HFRD-34.0 is controlled through an easy-to-use navigation switch (up, down, left, right, and push to select) and LCD display. Through this menu-

Table 1. Navigation Menu Details

based interface, the user can set, save, and load configurations and control a variety of other features available in the reference design. The table below details the menu options available.

Menu*

Index

LCD Label

Action Taken by Pushing “Select” on Menu It em

 

 

 

 

 

 

 

MM

1

Configuration

Configuration Menu (CM) is opened

 

 

 

 

 

 

 

 

MM

2

Video Switch

Video Switch Menu (VSM) is opened

 

 

 

 

 

 

 

 

MM

3

Audio Switch

Audio Switch Menu (ASM) is opened

 

 

 

 

 

 

 

 

MM

4

USB Switch

USB Switch Menu (USM) is opened

 

 

 

 

 

 

 

 

MM

5

Audio Control

Audio Control Menu (ACM) is opened

 

 

 

 

 

 

 

 

MM

6

Advanced Ctrl

Advanced Control Menu (ADVM) is opened

 

 

 

 

 

 

 

CM

1

Load Config

Opens a menu to allow the user to load one of four saved

 

 

 

 

configurations.

 

 

 

 

 

 

 

CM

2

Save Config

Opens menu to allow the user to save the current configuration to

 

 

 

 

one of four memory locations. Saved configurations are retained

 

 

 

 

during power cycles.

 

 

Reference Design HFRD-34.0 (Rev.3, 05/08)

Maxim Integrated Products

 

 

 

 

Page 12 of 18

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Maxim HFRD-34.0 manual MAX3420, Navigation Menu
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HFRD-34.0 specifications

Maxim HFRD-34.0 is a cutting-edge device designed to meet the growing demands for high-performance performance in various industrial and commercial applications. With its state-of-the-art features and technology, the HFRD-34.0 aims to deliver enhanced efficiency, reliability, and versatility for users.

One of the standout features of the HFRD-34.0 is its advanced data processing capabilities. Equipped with a powerful microcontroller, it offers rapid data acquisition and analysis, ensuring real-time monitoring of critical parameters. This capability is essential for industries that require immediate responses to dynamic conditions, such as manufacturing, energy management, and environmental monitoring.

The device also benefits from its robust communication options. The HFRD-34.0 supports various protocols, including Modbus, CAN, and Ethernet, facilitating seamless integration with existing systems and enabling remote access and control. This connectivity is crucial for industries that rely on IoT (Internet of Things) technologies, as it enables users to gather insights from multiple devices and optimize operations.

In terms of durability, the HFRD-34.0 is built to withstand harsh environmental conditions. With a rugged housing and an IP65 rating for dust and water resistance, it can operate effectively in extreme temperatures and challenging environments. This resilience makes it an ideal choice for applications in oil and gas, mining, and other heavy industries.

Another key characteristic of the HFRD-34.0 is its energy efficiency. The device is designed to consume minimal power while delivering maximum output, making it environmentally friendly and cost-effective for users. Coupled with its intelligent power management features, the HFRD-34.0 ensures sustained performance without compromising energy consumption.

Additionally, the HFRD-34.0 features a user-friendly interface, making it accessible to operators with varying levels of technical expertise. The intuitive design allows for easy setup and configuration, minimizing downtime and enhancing operational efficiency.

In conclusion, the Maxim HFRD-34.0 is a versatile and resilient device that stands out for its advanced data processing, robust communication options, durability, energy efficiency, and user-friendly design. Its range of features positions it as a valuable asset for industries seeking to enhance their operational capabilities while embracing modern technological advancements.
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