MAX41464GUB+T

RF Transmitter Overview

The MAX41464GUB+T is a Sub-GHz RF transmitter supporting FSK and GFSK modulation within the 300 MHz to 960 MHz frequency range. It features an integrated fractional PLL for frequency synthesis using a single low-cost crystal. The device delivers up to +16 dBm output power at 50 Ω, with a programmable PA boost mode active above 850 MHz. Data rates reach 200 kbps, and it operates on a 1.8 V to 3.6 V supply. Current consumption is under 12 mA at 315 MHz. It utilizes an I2C interface for configuration and includes an 800 kHz buffered clock output.

RF Transmitter Feature Summary

• Integrates a fractional phase-locked loop (PLL) capable of generating common global Sub-GHz frequencies using a single external crystal.
• Supports high-speed data transmission with programmable output power control via I2C registers.
• Includes a dedicated PA boost mode that activates automatically above 850 MHz to compensate for losses.
• Provides flexible interface options including a one-wire pin-selectable frequency mode and standard I2C programming.

RF Transmitter Applications

• Industrial, Scientific, and Medical (ISM) band communication systems
• Short Range Device (SRD) wireless links
• Frequency hopping spread spectrum protocols
• Low-power remote monitoring sensors

RF Transmitter Procurement Notes

Verify the specific suffix 'GUB' corresponds to the 10-TFSOP/MSOP package variant when sourcing. Confirm RoHS compliance status as indicated by the '+T' designation. Ensure the supplier documentation matches the Analog Devices or Maxim Integrated part number exactly to avoid incompatible revisions. Cross-reference the datasheet revision date against your design requirements.

RF Transmitter Selection Notes

Select this component for applications requiring high output power in the Sub-GHz range with minimal external passive components. The integrated PLL simplifies design by eliminating the need for complex synthesizer circuits. Consider the I2C interface complexity versus the simpler one-wire option based on microcontroller capabilities. Evaluate the current consumption profile against battery life requirements for portable devices.

RF Transmitter Part Context

This part belongs to the MAX41464 family of Sub-GHz transmitters designed for efficient wireless data transmission. It shares architectural similarities with other Maxim Integrated RF solutions but distinguishes itself through its integrated fractional PLL and high-output power capability. The family targets cost-sensitive applications needing reliable long-range communication without extensive external circuitry.

RF Transmitter Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB layouts if considering alternative manufacturers. Check frequency coverage and output power specifications against the original design requirements before substitution.