MAX3082ECSA+

MAX3082ECSA+ is a single chip, low power, logic family interface device with various voltage options and various line drivers and receivers. It has a wide variety of applications ranging from servers, routers and Class 1, Class 2 and Class 3 Ethernet cards to low power and space-constrained applications. This application field and working principle are discussed below.

Applications

MAX3082ECSA+ is primarily used for applications that require high performance, low power and small sized interfaces between an internal logic family and/or external logic families. The device can be used as both an input buffer and output driver. Applications include:

• Class 1, Class 2 and Class 3 Ethernet cards
• Routers
• Servers
• Broadcom modules
• Low power applications
• Space-constrained applications
• Logic family conversion applications
• Device interfacing

The MAX3082ECSA+ can be used for accessing the external memory and 10/100/1000BASE-T and 100/1000BASE-X Ethernet ports. It is also well suited for various other applications requiring logic family conversion. It supports various logic voltage levels and contains two differential pairs of line drivers and receivers. The device is compatible with the popularly used I2C system.

Working Principle

The MAX3082ECSA+ has two differential line driver pairs and two differential line receiver pairs. It also has two I2C system bus interface signals. The differential receiver pairs provide the input data while the differential driver pairs send data to the external interfaces.

The MAX3082ECSA+ provides a logic voltage range of 2.5V up to 3.3V typically and a maximum logic voltage of 4.5V (3.3V is the most commonly used voltage level). It also has an on-board temperature induced noise filter and a power supply dose assess control circuit. The device is powered by a single supply.

When the device is used as an input buffer, the data received is latched into an internal D flip-flop and can be directly written to the system I/O register by an I2C clock pulse. When the device is used as an output driver, the data stored in the register can be read by an I2C clock pulse and then latched into an internal D flip-flop. The data is then output to the external interface. The high-impedance buffer circuit detects a high-low transition and provides an input to the D flip-flop.

The MAX3082ECSA+ is also equipped with an over-voltage/under voltage (OV/UV) fault detection circuit. This circuit monitors the logic levels at its input to detect any fault conditions. If a fault condition is detected, the circuit stops the supply voltage to the device. This ensures that the MAX3082ECSA+ is protected from any damage due to power supply issues.

The MAX3082ECSA+ is ideal for providing a low power, high performance interface between an internal logic family and an external logic family. It is an efficient device for 10/100/1000BASE-T and 100/1000BASE-X Ethernet ports, routers and servers. It is also useful for low power and space-constrained applications.