AG2130-S

Overview

The Ag2130S is a low-cost PSTN interface module in a single-in-line package. It integrates COIC, FXO, DAA, and trunk interface functions. The device operates on +5V or +3.3V supplies with a maximum loop current of 90 mA. It provides transformer isolation for high common-mode rejection. Key electrical parameters include an operating temperature range of 0°C to 70°C and a DC supply voltage tolerance of 4.75V to 5.25V (+5V) or 3.13V to 3.47V (+3.3V). The module complies with FCC Pt68 and EN/UL60950 safety standards.

Feature Summary

• Highly integrated design combining COIC, FXO, DAA, and trunk interface capabilities within a compact SIL form factor.
• Transformer isolation providing high common-mode rejection suitable for un-grounded systems.
• On-board loop switch and diode bridge eliminate the need for external relays and discrete protection components.
• Programmable DC mask and line/network impedances allow adaptation to various global market requirements.

Applications

• PABX systems requiring robust line interfacing
• Long loop applications with high common mode interference
• Systems without a ground connection

Procurement Notes

Verify that the specific ordering suffix matches the required RoHS compliance status. Confirm the exact pinout configuration against the latest Silvertel datasheet before finalizing PCB layout. Ensure the host system power supply meets the specified voltage tolerances for stable operation.

Selection Notes

Select this component when a combined SLIC and hybrid function is needed in a space-constrained environment. Consider the programmable impedance networks if interfacing with non-standard line impedances. Verify that the internal loop switch meets the signaling requirements of the target network operator.

Part Context

The Ag2130 belongs to the Silvertel PSTN interface family. It serves as a complete solution for connecting digital voice processing units to analog telephone lines. The module simplifies design by integrating supervision and power management features typically found in discrete implementations.

Replacement Considerations

No direct public substitute part numbers are documented. Discrete SLIC and hybrid combinations may serve as functional alternatives but require additional external components for loop switching and protection.

FAQ

How is the loop start protocol implemented?

The Ag2130 uses an integral optically isolated loop switch controlled by the LSC pin. Applying a logic 1 closes the switch to initiate off-hook signaling.

What is the method for adjusting DC termination characteristics?

DC characteristics are adjusted by connecting a resistor between the DMa and DMb pins. Specific resistance values are recommended for different regional markets.

How does the device handle ringing detection?

The RS output toggles at the ringing frequency when a ringing signal is detected. Sensitivity is set internally to 22V RMS for +5V operation.