General Description

The MAX7030 crystal-based, fractional-N transceiver is designed to transmit and receive ASK/OOK data at facory-preset carrier frequencies of 315MHz, 345MHz†, or 433.92MHz with data rates up to 33kbps (Manchester encoded) or 66kbps (NRZ encoded). This device generates a typical output power of +10dBm into a 50Ω load, and exhibits typical sensitivity of -114dBm. The MAX7030 features separate transmit and receive pins (PAOUT and LNAIN) and provides an internal RF switch that can be used to connect the transmit and receive pins to a common antenna.

Features

♦ +2.1V to +3.6V or +4.5V to +5.5V Single-Supply Operation

♦ Single-Crystal Transceiver

♦ Factory-Preset Frequency (No Serial Interface Required)

♦ ASK/OOK Modulation

♦ +10dBm Output Power into 50Ω Load

♦ Integrated TX/RX Switch

♦ Integrated Transmit and Receive PLL, VCO, and Loop Filter

♦ > 45dB Image Rejection

♦ Typical RF Sensitivity*: -114dBm

♦ Selectable IF Bandwidth with External Filter

♦ < 12.5mA Transmit-Mode Current

♦ < 6.7mA Receive-Mode Current

♦ < 800nA Shutdown Current

♦ Fast-On Startup Feature, < 250µs

♦ Small, 32-Pin, Thin QFN Package