DS2180AN

Telecom Overview

The DS2180AN is a monolithic CMOS T1 transceiver designed for primary rate (1.544 MHz) transmission systems. It supports D4 (193S, 12 frames/superframe) and Extended Superframe (193E, 24 frames/superframe) formats. The device integrates transmit framer/formatter and receive synchronizer blocks with selectable zero suppression modes including B7 stuffing, B8ZS, and transparent operation. It features a microprocessor-compatible serial interface for configuration or hardware mode for stand-alone applications. Operating on a single 5V supply, the DS2180AN provides alarm generation/detection, error counting, and robbed bit signaling in 0, 2, 4, or 16 state modes within an industrial temperature range of -40°C to +85°C.

Telecom Feature Summary

• Supports standard T1 framing formats including 193S and 193E with selectable zero suppression modes such as B7 stuffing and B8ZS.
• Integrates transmit and receive synchronization with programmable alarm detection, bipolar violation monitoring, and error counting capabilities.
• Offers dual control interfaces: a serial port for processor-based configuration and a hardware mode for standalone applications without external controllers.

Telecom Applications

• Primary rate T-carrier transmission systems
• Ft/Fs applications requiring 193S framing support
• Extended superframe format implementations

Telecom Procurement Notes

Verify the specific suffix 'AN' confirms the industrial temperature range (-40°C to +85°C) and DIP package variant. Confirm RoHS compliance status as older Maxim Integrated products may not meet current environmental directives. Check for obsolescence notices from Analog Devices regarding this specific part number before finalizing procurement plans.

Telecom Selection Notes

Select the DS2180AN when a complete T1 transceiver solution is required with integrated framing and signaling. Ensure compatibility with existing 5V logic levels. Consider the DS2180AQ for surface-mount requirements instead of the DIP package. Verify that the chosen zero suppression mode aligns with network standards.

Telecom Part Context

The DS2180A belongs to the Maxim Integrated T1 transceiver family. It is compatible with other components such as the DS2186 Transmit Line Interface, DS2187 Receive Line Interface, and DS2188 Jitter Attenuator. This ecosystem allows for modular design of T1 transmission equipment using standardized interfaces and complementary functions.

Telecom Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Designers should evaluate the DS2180AQ for surface-mount needs or consult Analog Devices for current equivalent offerings if the DS2180AN is discontinued.

Telecom FAQ

What zero suppression modes does the DS2180AN support?

The device supports three zero suppression modes: B7 stuffing, B8ZS (Bipolar Eight Zero Substitution), and transparent operation.

How is the device controlled in stand-alone applications?

In stand-alone applications, the device can operate in 'Hardware' mode where pins 14 through 18 are reconfigured into hardwired select pins, eliminating the need for an offboard processor.

What alarm conditions can the DS2180AN detect?

It detects receive carrier loss, frame errors, bipolar violations, blue alarms, yellow alarms, and B8ZS code words.