PSB 2134 H V2.2

Telecom Overview

The PSB 2134 H V2.2 is a four-channel programmable codec filter (SICOFI®4-TE) designed for terminal applications supporting POTS interfaces. It operates on a single 5V supply and integrates A/μ-law conversion, digital filters, and tone generators via DSP technology. The device connects to an IOM-2 interface running at a 1.536 MHz master clock (DCL) with a 768 kHz bit clock (BCL). It features internal communication between channels, programmable signaling I/O lines, and a programmable ring generator output. Configuration is managed through a serial microcontroller interface.

Telecom Feature Summary

• Four-channel integration for simultaneous POTS interface handling
• Programmable digital filters for AC impedance matching and transhybrid balancing
• Internal inter-channel communication capability eliminating external switch matrices
• Integrated tone generators and level metering functions

Telecom Applications

• Terminal adapters for ISDN networks
• Intelligent Network Termination type 1 (NT1plus) devices
• Multi-line telephony systems requiring software-defined line characteristics

Telecom Procurement Notes

Verify the manufacturer origin as this component originates from Siemens AG Semiconductor Group. Confirm that the V2.2 designation corresponds to the specific revision documented in the September 1997 datasheet. Ensure compatibility with legacy IOM-2 protocols when integrating with modern control systems.

Telecom Selection Notes

Select the PSB 2134 H V2.2 over the two-channel PSB 2132 variant when four independent voice channels are required within a single package. This component supports direct driving of transformers with high analog current capability. It is suitable for designs needing flexible adaptation to country-specific telephone network standards via software programming.

Telecom Part Context

This component belongs to the SICOFI®2/4-TE family of signal processing codec filters developed by Siemens AG. It utilizes advanced 0.9 µm analog CMOS technology to provide high dynamic range and low power consumption. The device represents a specialized solution for bridging analog subscriber lines with digital PCM transmission systems.

Telecom Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Siemens or Infineon semiconductor archives for legacy cross-references.