MAX2105CWI+

Overview

The MAX2105CWI+ is a direct-conversion tuner integrated circuit manufactured by Analog Devices Inc. (Maxim Integrated). It is designed for digital direct-broadcast satellite (DBS) and DVB applications, specifically targeting set-top box units. The device operates within a supply voltage range of 3V to 5.5V and supports data rates up to 235Kbps. It features an RS232 interface protocol with full duplex communication capability. The component includes three drivers and five receivers, housed in a 28-SOIC surface-mount package measuring 7.50mm in width. It functions reliably within an operating temperature range of 0°C to 70°C.

Feature Summary

• Direct-conversion architecture optimized for satellite reception
• Integrated driver and receiver support for serial communication protocols
• Surface-mount packaging suitable for compact electronic designs

Applications

• Digital direct-broadcast satellite television set-top boxes
• DVB application modules
• Embedded control systems requiring satellite signal tuning

Procurement Notes

Verify the specific suffix 'CWI+' against official manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with existing DBS or DVB system architectures before integration. Check current availability status as distribution channels may vary. Confirm RoHS compliance requirements if applicable to your manufacturing standards. Validate pinout configurations against the latest datasheet revisions to prevent installation errors.

Selection Notes

Select this component when designing low-cost direct-conversion tuners for satellite TV environments. Consider its 28-SOIC footprint for space-constrained PCB layouts. Evaluate its 3V to 5.5V operating range against your system power rails. Assess the need for integrated RS232 transceivers alongside tuning functions. Verify thermal performance requirements against the specified 0°C to 70°C operational window.

Part Context

The MAX2105 belongs to a family of direct-conversion tuner ICs developed for digital broadcast applications. It complements similar models like the MAX2102, offering integrated functionality for satellite signal processing. The device represents Maxim Integrated's approach to simplifying set-top box designs by combining tuning and communication interfaces into a single chip solution.

Replacement Considerations

Consult official substitution guides for equivalent direct-conversion tuner ICs. Verify functional compatibility with existing DBS and DVB system requirements before swapping components.