MAX2901ETI+

RF Transmitter Overview

The MAX2901ETI+ is a single-chip RF transmitter IC designed for the 868MHz and 915MHz ISM bands, specifically operating within the 902MHz to 928MHz range. It delivers a maximum output power of 20dBm (100mW) with a supply voltage range of 2.7V to 4.5V. The device supports ASK and BPSK modulation protocols and features an integrated VCO and synthesizer. Packaged in a 28-WFQFN exposed pad (5mm x 5mm) surface-mount footprint, it operates across a temperature range of -40°C to +85°C.

RF Transmitter Feature Summary

• Integrates complete transmission chain including modulator, mixer, and power amplifier on a single die
• Supports both Amplitude Shift Keying (ASK) and Binary Phase Shift Keying (BPSK) modulation schemes
• Features an internal voltage-controlled oscillator and frequency synthesizer for direct frequency generation
• Designed for low component count implementation in compact PCB layouts

RF Transmitter Applications

• Industrial, Scientific, and Medical (ISM) band wireless data links
• Remote control and telemetry systems
• Low-power sensor network transmitters
• Short-range wireless identification devices

RF Transmitter Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors due to market availability fluctuations. Confirm package marking matches the 28-WFQFN specification. Check manufacturing date codes against RoHS3 compliance requirements. Ensure storage conditions maintain moisture sensitivity level 1 integrity prior to reflow soldering.

RF Transmitter Selection Notes

Select this component for applications requiring moderate output power in the 902-928MHz spectrum without external PA stages. Suitable for designs prioritizing minimal bill-of-materials complexity. Consider thermal dissipation requirements due to the exposed pad package design. Verify antenna impedance matching networks align with the integrated output stage characteristics.

RF Transmitter Part Context

Part of the MAX2900-MAX2904 family of single-chip transmitters optimized for ISM band operations. Shares architectural similarities with adjacent models differing primarily in frequency coverage and specific modulation enhancements. Manufactured by Maxim Integrated, now part of Analog Devices Inc., targeting cost-sensitive wireless IoT deployments.

RF Transmitter Replacement Considerations

Public confirmed substitute part numbers are not explicitly documented in the provided source material. Consult official Analog Devices cross-reference tools for compatible alternatives.