Description:The Intersil ISL8484 device is a low ON-resistance, low voltage, bidirectional, dual single-pole/double-throw (SPDT) analog switch designed to operate from a single +1. 65V to +4. 5V supply. Targeted applications include battery powered equipment that benefit from low rON (0. 29Ω) and fast switching speeds (tON = 40ns, tOFF = 20ns). The digital logic input is 1. 8V logic-compatible when using a single +3V supply. With a supply voltage of 4. 2V and logic high voltage of 2. 85V at both logic inputs, the part
Renesas provides a recommended PCB layout in the application note AN1995, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize EMI.
The ISL8484IUZ can be configured using the SPI interface to set the baud rate, data format, and other parameters. Renesas provides a configuration guide in the datasheet and application notes, and also offers a software development kit (SDK) to simplify the configuration process.
The maximum cable length supported by the ISL8484IUZ depends on the baud rate and cable characteristics. As a general guideline, Renesas recommends a maximum cable length of 10 meters at 100 Mbps and 5 meters at 1000 Mbps. However, the actual cable length may be longer or shorter depending on the specific application and environment.
The ISL8484IUZ has built-in common-mode voltage rejection and electromagnetic interference (EMI) filtering to ensure reliable data transmission in noisy environments. The device also has a high common-mode voltage range of ±15 kV to protect against electrostatic discharge (ESD) and other voltage transients.
The power consumption of the ISL8484IUZ depends on the operating mode and data rate. In general, the device consumes around 150 mW in active mode and 10 μW in shutdown mode. To reduce power consumption, engineers can use the device's low-power modes, adjust the baud rate, and optimize the PCB design to minimize power losses.
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ISL8484IUZ Overview
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