PCA9509PDP,118

Delay Time:	--
Base Part Number:	PCA9509
Supplier Device Package:	8-TSSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 85°C
Current - Supply:	3mA
Voltage - Supply:	3 V ~ 5.5 V
Capacitance - Input:	2pF
Signal Conditioning:	--
Series:	--
Number of Channels:	1
Data Rate (Max):	400kHz
Output:	2-Wire Bus
Input:	2-Wire Bus
Applications:	I²C
Type:	Buffer, ReDriver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PCA9509PDP,118 is an integrated signal buffer/ repeater/ splitter developed by NXP Semiconductors. It consists of two identical bidirectional latches and is designed to provide signal transmission between two buses of different voltages, interface levels or signal protocols. The PCA9509PDP,118 helps to improve the signal integrity of the system by suppressing signal reflections on the bus lines, reducing EMI and providing signal-level isolation.

Application Fields

The PCA9509PDP,118 can be used in several applications as a signal buffer, repeater, splitter or signal level isolation device. Its applications include power management, digital signal processing, signal multiplexers and data communications. It can also be used to interface within an industrial system supporting mixed speed & voltage buses and enables the communication between devices or systems running different speeds or protocols.

Working Principle

The PCA9509PDP,118 provides signal buffering capabilities using two Gates, which are respectively connected to two opposite sides of the device\'s input. When power is applied to the device, the two Gates are driven at the same time and this causes a signal buffer to be provided between each side of the device. Furthermore, the signal buffer provides spike protection and signal level isolation, making PCA9509PDP,118 a suitable solution for today\'s harsh signal environment. In addition, the PCA9509PDP,118 features a signal repeater which allows signals to be transmitted between two different speed or voltage levels. This is done by the two Gates, which provide signal buffering capabilities and signal level conversion, compensating for impedance mismatch. This signal repeater also allows for signal multiplexing between two different buses of different speeds or operating frequencies.Finally, the PCA9509PDP,118 has a signal splitter that provides the potential for device splitting or signal lane replication without the need for active components. This feature is advantageous in applications where signal lane replication may be needed, such as communication interface.

Conclusion

The PCA9509PDP,118 integrated signal buffer/ repeater/ splitter is an innovative solution for signal transmission and conversion in various applications. Its multiple features allow it to provide signal buffering, signal repeater and signal splitting. With its high performance and reliable signal transmission, the PCA9509PDP,118 is an ideal choice for signal-level isolation and conversion in industrial, automotive, data communications and power management applications.

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