The PEB2081PV3.4 is an ISDN Subscriber Access Module (ISAC-S) integrated circuit manufactured by Siemens. It is designed to provide a complete interface between an ISDN (Integrated Services Digital Network) line and a digital terminal device. It handles the physical layer functions required for ISDN basic rate access.

Applications

• ISDN Terminal Adapters: Used in terminal adapters to connect non-ISDN devices to an ISDN network.
• ISDN Telephones: Integrated into ISDN telephones for digital communication.
• PBX Systems: Employed in Private Branch Exchange (PBX) systems to provide ISDN connectivity.
• Network Interface Cards: Used in network interface cards to enable ISDN access for computers.
• Data Communication Equipment: Found in various data communication devices requiring ISDN connectivity.

Features

• ISDN Basic Rate Interface: Provides a complete ISDN basic rate interface.
• Line Termination: Includes line termination circuitry for direct connection to the ISDN line.
• Framing and Deframing: Performs framing and deframing of ISDN data.
• HDLC Controller: Integrates an HDLC (High-Level Data Link Control) controller for data link layer functions.
• Clock Recovery: Provides clock recovery from the ISDN line signal.

Benefits

• Simplified ISDN Interface: Provides a complete and integrated ISDN interface, simplifying system design.
• Reduced Component Count: Integration reduces the number of external components required.
• Enhanced Performance: HDLC controller provides efficient data link layer processing.
• Reliable Communication: Provides reliable ISDN communication.
• Cost-Effective Solution: Offers a cost-effective solution for ISDN connectivity.

Additional Details

The PEB2081PV3.4 operates with a specific supply voltage and supports the ISDN basic rate interface standard. It includes various control signals for interfacing with a microcontroller or other digital devices. The device is typically packaged in a PLCC (Plastic Leaded Chip Carrier) or similar surface-mount package. Detailed specifications, including power requirements, timing characteristics, and pin configurations, are available in the product datasheet. Proper termination and signal conditioning are essential for reliable ISDN communication. The device implements the necessary protocols and functions to establish and maintain an ISDN connection. Version number 3.4 usually refers to a particular revision of the chip with possible improvements or bug fixes over previous versions.