MAX275BCWP+T

Overview

The MAX275BCWP+T is a low-power, direct-conversion quadrature modulator manufactured by Analog Devices Inc. under the Maxim Integrated brand. It integrates an I/Q modulator core with on-chip quadrature signal generation and local oscillator (LO) buffers. The device operates from a single +3V to +5V supply and features a wide RF output frequency range of 10MHz to 600MHz. Key electrical parameters include a conversion gain of 14dB, an LO-to-RF isolation of 40dB, and a phase noise figure of -168dBc/Hz at a 10kHz offset. It is housed in a 28-pin TSSOP package.

Feature Summary

• Integrates quadrature signal generation and LO buffers to minimize external component count
• Supports direct-conversion modulation architectures for simplified system design
• Provides high linearity and low phase noise performance suitable for wireless applications

Applications

• Wireless LAN transmitters
• Cellular phone base stations
• Point-to-point radio systems

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official documentation. Ensure the BCWP variant matches the required temperature grade and package dimensions for your PCB layout.

Selection Notes

Select this component for designs requiring integrated quadrature generation to reduce board space. Compare against the MAX274 if demodulation capabilities are needed instead of modulation. Verify that the 10MHz to 600MHz frequency range aligns with your target RF channel specifications.

Part Context

This part belongs to the MAX274/MAX275 family of direct-conversion modulators and demodulators. The MAX275 specifically functions as a modulator, while the MAX274 serves as a demodulator. Both share similar internal architectures and pinouts, differing primarily in their signal processing direction.

Replacement Considerations

The MAX274BCWP+T is a related part within the same family but functions as a demodulator rather than a modulator. Direct substitution requires verifying functional compatibility with the circuit's signal flow direction.