The MAX7036 is a low-cost receiver designed for receiving amplitude-shift-keyed (ASK) and on-off-keyed (OOK) data in the 300MHz to 450MHz frequency range. The receiver has an RF input signal range of -109dBm to 0dBm. The MAX7036 requires few external components and has a power-down pin to put it in a low-current sleep mode, making it ideal for cost- and power-sensitive applications. The low-noise amplifier (LNA), phase-locked loop (PLL), mixer, IF filter, received-signal-strength indicator (RSSI), and baseband sections are all on-chip. The MAX7036 uses a very-low intermediate frequency (VLIF) architecture. The MAX7036 integrates the IF filter on-chip and therefore eliminates an external ceramic filter, reducing the bill-of-materials cost. The device also contains an on-chip automatic gain control (AGC) that reduces the LNA gain by 30dB when the input signal power is large. The MAX7036 operates from either a 5V or a 3.3V power supply and draws 5.5mA (typ) of current. The MAX7036 is available in a 20-pin thin QFN pack- age with an exposed pad and is specified over the AEC-Q100 Level 2 (-40°C to +105°C) temperature range. Applications include low-cost RKE garage door openers, remote controls, home automation, sensor networks, and security systems.
The MAX7036 is a low‑cost CMOS RF receiver that demodulates ASK and OOK signals in the 300 MHz to 450 MHz band. It integrates a low‑noise amplifier, PLL, mixer, IF filter, RSSI and baseband sections on a single chip and includes a power‑down pin for low‑current sleep mode, making it suitable for cost‑ and power‑sensitive applications.
The device is supplied in a 20‑pin thin QFN package, operates from either a 3.3 V or 5 V supply, and draws about 5.5 mA typical current. Key features include on‑chip AGC, a 200 kHz nominal IF, 1 pA standby current, and automotive‑qualified temperature range of –40 °C to +105 °C.
| Receiver Input Frequency Range | 300 MHz – 450 MHz |
|---|---|
| Supply Voltage (3.3 V operation) | 3.0 V – 3.6 V |
| Typical Supply Current | 5.5 mA |
| Standby Current | 1 pA |
| Maximum Receiver Input Level | 0 dBm |
| Sensitivity (315 MHz) | -109 dBm |
| Low IF Frequency | 200 kHz (nominal) |
| AGC Gain Reduction | ≈ 29 dB |
| Package | 20‑Pin Thin QFN‑EP |
| Operating Temperature Range | -40 °C to +105 °C |
The MAX7036 can operate from either a 3.3 V supply (3.0 V – 3.6 V) or a 5 V supply (5.0 V – 5.5 V).
In typical operation the device draws about 5.5 mA of current.
The receiver accepts RF input frequencies from 300 MHz to 450 MHz.
The MAX7036 is offered in a 20‑pin thin QFN package with an exposed pad.