ALM-40220-BLKG

RF Switches Overview

The ALM-40220-BLKG is a single-pole double-throw (SPDT) reflective RF switch module designed for CDMA and TDMA applications. It operates within a frequency range of 2.01 GHz to 2.025 GHz, supporting TD-SCDMA standards. The component features a 5-pin MCOB package with a characteristic impedance of 50 Ohms. Key electrical specifications include an insertion loss of 0.45 dB and typical off-isolation of 17 dB. It supports a maximum operating temperature of +150°C and requires a high control voltage of 7V, with a maximum supply voltage of 5V.

RF Switches Feature Summary

• Reflective SPDT topology optimized for CDMA and TDMA signal routing
• Integrated module in compact 5-pin MCOB package
• High isolation performance for signal integrity

RF Switches Applications

• TD-SCDMA communication systems
• CDMA mobile device front-end modules
• TDMA base station transceivers

RF Switches Procurement Notes

This component is currently listed as obsolete by the manufacturer. Verification of availability should focus on surplus distributors or secondary market sources rather than direct OEM channels. Ensure that any sourced units are verified for authenticity and storage history due to the discontinued status. Cross-reference part numbers carefully to confirm compatibility with existing designs.

RF Switches Selection Notes

Select this component only for legacy designs requiring specific TD-SCDMA support at 2.01–2.025 GHz. The reflective topology and 5V/7V control requirements must align with system power constraints. Due to its obsolete status, alternative modern solutions should be evaluated for new developments. Verify package dimensions and pinout compatibility before integration into PCB layouts.

RF Switches Part Context

The ALM-40220-BLKG belongs to Broadcom's portfolio of RF switch modules targeting third-generation (3G) mobile communication standards. It integrates switching functionality into a small form factor suitable for space-constrained mobile devices. The module addresses the need for reliable signal path management in TD-SCDMA networks, providing essential isolation and low loss characteristics for compliant hardware implementations.

RF Switches Replacement Considerations

No public confirmed substitute part numbers are available. As the component is obsolete, engineers must design around existing inventory or select newer generation switches from current product lines that meet similar frequency and power requirements.