CS61584A-IQ3ZR

Telecom Overview

The CS61584A-IQ3ZR is a dual T1/E1 line interface integrated circuit manufactured by Cirrus Logic. It operates on a 3.3V supply and is housed in a 64-pin Thin Quad Flat Package (TQFP). The device supports an ambient operating temperature range from -40°C to +85°C. It features crystal-less jitter attenuation compliant with European CTR 12 and ETSI standards, matched impedance transmit drivers, and customizable pulse shaping. Control is facilitated via serial or parallel host modes, alongside hardware mode operation.

Telecom Feature Summary

• Dual T1/E1 line interface supporting flexible microprocessor control through serial or parallel host interfaces.
• Crystal-less jitter attenuator designed to meet stringent European CTR 12 and ETSI specifications.
• Matched impedance transmit drivers that reduce power consumption while providing substantial transmitter return loss.
• Support for JTAG boundary scan to enhance system testability and reliability.

Telecom Applications

• High-volume T1/E1 telecommunication cards requiring low power and high density.
• AT&T 62411 customer premises applications.
• Asynchronous multiplexer systems.
• Synchronous telecommunication applications.

Telecom Procurement Notes

Verify the specific ordering suffix IQ3ZR against the manufacturer's current datasheet to confirm the 3.3V voltage variant and 64-pin TQFP package configuration. Ensure the component meets the required -40°C to +85°C industrial temperature rating for your deployment environment. Cross-reference the part number with official distributor catalogs to validate availability status and lead times prior to procurement.

Telecom Selection Notes

Select this component for designs requiring dual-channel T1/E1 connectivity with integrated jitter attenuation. The 3.3V version is suitable for modern low-voltage logic systems. Consider the 64-pin TQFP package constraints regarding PCB real estate and thermal dissipation. Verify compatibility with the host processor's serial or parallel interface timing requirements before finalizing the design.

Telecom Part Context

The CS61584A belongs to Cirrus Logic's family of dual T1/E1 line interface devices. This series is engineered for telecommunications infrastructure where signal integrity and compliance with international standards are critical. The IQ3ZR designation specifically identifies the 3.3V supply variant within the broader product line.

Telecom Replacement Considerations

Consult the manufacturer's documentation for officially confirmed substitute part numbers. Verify pinout compatibility and electrical specifications when considering alternative components from other manufacturers.

Telecom FAQ

Does the CS61584A require an external crystal oscillator?

No, the device features a crystal-less jitter attenuator that complies with European CTR 12 and ETSI specifications without requiring an external crystal.

What control interfaces does the CS61584A support?

The device supports flexible microprocessor control through both serial and parallel Host mode interfaces, as well as hardware mode operation.

How does the CS61584A manage transmitter power consumption?

It utilizes matched impedance transmit drivers which significantly reduce power consumption while maintaining substantial transmitter return loss.