The MAX7034 is a fully integrated low-power CMOS super-heterodyne receiver, ideal for receiving amplitude-shift-keyed (ASK) data in the 300MHz to 450MHz frequency range. It has an RF sensitivity of -114dBm. With few external components and a low-current power-down mode, it is ideal for cost-sensitive and power-sensitive applications typical in the automotive and consumer markets.
The MAX7034 is a fully integrated low‑power CMOS super‑heterodyne receiver designed for ASK data in the 300 MHz to 450 MHz band, including the popular 315 MHz and 433.92 MHz frequencies. It combines a low‑noise amplifier, image‑rejection mixer, on‑chip PLL/VCO, IF limiting amplifier with RSSI, and baseband data‑recovery circuitry in a 28‑pin TSSOP package.
The device operates from a single +5 V supply (or +3 V to +3.6 V in low‑voltage mode), offers -114 dBm RF sensitivity, 250 µs startup time, and a low‑current power‑down mode. It is qualified for automotive temperature ranges (-40 °C to +125 °C) and is suited for automotive remote keyless entry, home automation, garage door openers, and other wireless sensor applications.
| Frequency range | 300 MHz to 450 MHz |
|---|---|
| Supply voltage | +5.0 V nominal |
| RF sensitivity | -114 dBm |
| Startup time | 250 µs |
| Operating current (low‑power mode) | < 6.7 mA |
| Operating temperature range | -40 °C to +125 °C |
| Package | 28‑pin TSSOP (9.7 mm × 4.4 mm) |
| Image rejection | 44 dB |
The device is specified for -40 °C to +125 °C operation.
It operates from a single +5.0 V supply, or from +3.0 V to +3.6 V in low‑voltage mode.
The startup time is specified as 250 µs.
The receiver achieves a sensitivity of -114 dBm.