CLC5526MSA/NOPB

Overview

The CLC5526MSA/NOPB is a high-performance digital variable gain amplifier (DVGA) manufactured by Texas Instruments. It features a 350 MHz bandwidth and differential input/output architecture, designed for mixed signal and digital communication applications requiring automatic-gain-control (AGC). The device operates on a single +5V supply with a typical current consumption of 48 mA. Key electrical specifications include a maximum gain of +30 dB and a minimum gain of -12 dB, providing a wide dynamic range. The gain step size is 6.02 dB, controlled via a 3-bit parallel interface. At 150 MHz with a 1 Vpp input, the two-tone intermodulation distortion is -64 dBc, and the third-order intercept point (IP3) is 24.5 dBm. The input impedance is 200Ω, while the output impedance is 600Ω.

Feature Summary

• Differential input and output architecture supporting large signal swings on a single 5V rail
• Digital control via 3-bit parallel inputs with TTL/CMOS compatibility and data latching capability
• Low power standby mode accessible through a dedicated shutdown pin
• Internal clamping mechanism ensuring fast overdrive recovery

Applications

• Cellular and PCS base stations
• IF sampling receivers
• Back-channel modems
• Infrared and CCD imaging systems
• Medical imaging equipment

Procurement Notes

Verify that the component matches the exact part number CLC5526MSA/NOPB to ensure correct package type and suffix specifications. Confirm the supplier provides original manufacturer documentation or traceability records. Check for RoHS compliance status as indicated in official datasheets. Ensure storage and handling procedures account for limited built-in ESD protection during installation.

Selection Notes

Select this DVGA when a fixed 350 MHz bandwidth and differential signaling are required for RF or IF stages. The 6 dB gain steps suit applications needing coarse but precise attenuation ranges from -12 dB to +30 dB. Consider the 20-pin SSOP package constraints for PCB layout. Evaluate the 48 mA supply current against system power budgets compared to lower-power alternatives.

Part Context

This component belongs to the CLC5526 series of digitally controlled amplifiers produced by Texas Instruments. It is specifically engineered for diversity receiver chipsets and similar communication architectures where AGC functionality is critical. The device integrates an R-2R resistive ladder for accurate gain scaling and maintains terminated impedance environments for both input and output stages.

Replacement Considerations

Consult Texas Instruments product selection guides for updated equivalents within the DVGA family. Verify pinout compatibility and electrical parameter alignment before substituting. No specific public substitute part numbers are confirmed in the provided documentation.