The PSB 2165N SP11 is a single-chip transceiver designed for ISDN (Integrated Services Digital Network) S/T interface applications. Manufactured by Siemens (now Infineon Technologies), it facilitates the transmission and reception of data and voice signals over ISDN Basic Rate Access (BRA) lines. This component is a crucial part of ISDN terminal equipment, ensuring reliable and efficient communication across the network.

Applications

• ISDN Terminal Adapters (TAs)
• ISDN Network Termination (NT) devices
• ISDN PC cards
• Digital telephones
• Voice over IP (VoIP) gateways using ISDN
• ISDN routers

Features

• Full-duplex data transmission at 144 kbps (2B+D channels)
• Integrated S/T interface transceiver
• Echo cancellation for improved signal quality
• Adaptive equalization to compensate for line distortions
• Framing and deframing of ISDN data
• D-channel protocol handling (LAPD)
• Clock recovery and synchronization
• Low power consumption
• Loopback test capabilities for diagnostics

Benefits

• Reduced system cost due to single-chip integration
• Improved performance and reliability through echo cancellation and equalization
• Simplified design and development process
• Lower power consumption for energy-efficient applications
• Enhanced interoperability with ISDN networks
• Faster time-to-market for ISDN products

Additional Details

The PSB 2165N SP11 features integrated echo cancellation and adaptive equalization, ensuring high-quality signal transmission even on noisy or long ISDN lines. It handles the framing and deframing of ISDN data, as well as D-channel protocol processing. Its low power consumption makes it suitable for battery-powered devices. The device also includes loopback test capabilities, which simplify troubleshooting and maintenance. This chip plays a vital role in ensuring seamless ISDN communication.