The PSB2170HV1.1 is an ISDN Echo Canceller device manufactured by Infineon Technologies. It is designed for use in ISDN (Integrated Services Digital Network) line cards and other telecommunications equipment. This device provides echo cancellation, ensuring clear voice communication over ISDN lines.

Applications:

• ISDN line cards for central office and customer premises equipment.
• ISDN terminals, including digital telephones and fax machines.
• Voice over IP (VoIP) gateways that interface with ISDN networks.
• PBX (Private Branch Exchange) systems that support ISDN connectivity.
• Teleconferencing equipment requiring high-quality audio.

Features:

• Echo Cancellation: High-performance echo cancellation algorithms to eliminate echoes on ISDN lines.
• ITU-T G.165 and G.168 Compliance: Complies with international standards for echo cancellation performance.
• Digital Signal Processing (DSP): Integrated DSP for efficient echo cancellation and voice processing.
• A-Law/μ-Law Companding: Supports A-law and μ-law companding for voice signal encoding.
• HDLC Controller: Integrated HDLC (High-Level Data Link Control) controller for data communication.
• Serial Interface: Provides a serial interface for communication with other system components.
• Low Power Consumption: Designed for low power operation.

Benefits:

• Improved Voice Quality: Eliminates echoes for clearer and more natural voice communication.
• Standards Compliance: Ensures compatibility with ISDN networks worldwide.
• Reduced System Costs: Integrated functionality reduces the need for external components.
• Simplified Design: Easy to integrate into ISDN line card designs.
• Enhanced Network Performance: Improves the overall performance of ISDN networks.

Additional Details:

The PSB2170HV1.1 typically operates from a single 5V power supply. It is available in a surface-mount package. The echo cancellation performance is characterized by echo return loss enhancement (ERLE) and convergence time. The device also supports various diagnostic features for troubleshooting ISDN line problems. Refer to the Infineon website and the device datasheet for detailed specifications and application notes.