The MAX7033 is a low-power, fully integrated superheterodyne receiver from MAXIM that can receive ASK data in the 300MHz to 450MHz frequency range.
The MAX7033 integrates a low‑noise amplifier, differential image‑rejection mixer, on‑chip PLL/VCO, IF limiting amplifier with RSSI, and baseband data‑recovery circuitry. It operates from a single +3.3 V or +5.0 V supply and includes a one‑step automatic gain control that reduces LNA gain by 35 dB when the RF input exceeds -62 dBm, with an external hold feature.
Typical applications include home automation, remote controls, automotive keyless entry, security systems, and garage‑door openers. The device is offered in 28‑pin TSSOP and 32‑pin TQFN packages and is rated for -40 °C to +105 °C operation.
| Supply Voltage | +3.3 V or +5.0 V |
|---|---|
| Operating Supply Current | 5.2 mA (typical) |
| Startup Time | 250 µs |
The device operates from a single +3.3 V or +5.0 V supply.
The startup time is 250 µs.