Overview
The MAX1470EWC+T is a fully integrated low-power CMOS superheterodyne receiver designed by Analog Devices Inc./Maxim Integrated. This component is optimized for use in the 315MHz band and is particularly suited for applications requiring low power consumption and minimal external components. It is ideal for cost- and power-sensitive applications in consumer markets, such as remote keyless entry systems, garage door openers, remote controls, wireless sensors, and security systems.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 3.0 | 3.6 | V | ||
| Operating Supply Current | IDD | PWRDN = VDD | 5.5 | mA | ||
| Shutdown Supply Current | ISHUTDOWN | PWRDN = GND | 1.25 | µA | ||
| Receive Sensitivity | -115 | dBm | ||||
| Startup Time | TON | 250 | µs | |||
| RF Image Rejection | 53 | dB | ||||
| Operating Temperature Range | -40 | +85 | °C | |||
| Package Type | 28-pin TSSOP |
Key Features
Single +3.0V to +3.6V Supply: Operates from a single supply voltage, making it power-efficient.
Integrated PLL and VCO: Features a fully integrated 315MHz phase-lock-loop (PLL) with an on-board voltage-controlled oscillator (VCO) and loop filter.
Low Noise Amplifier (LNA) and Image Rejection Mixer: Includes a 315MHz low-noise amplifier and an image rejection mixer for improved signal quality.
Low Power Consumption: Offers a low-current power-down mode of 1.25µA for efficient power cycling.
Fast Startup Time: Startup time of 250µs.
High RF Image Rejection: Built-in 53dB RF image rejection.
ASK Demodulator and Analog Baseband Data Recovery: Includes an amplitude-shift-keyed (ASK) demodulator and analog baseband data-recovery circuitry.
Applications
Remote Keyless Entry Systems
Garage Door Openers
Remote Controls
Wireless Sensors
Wireless Computer Peripherals
Security Systems
Toys
Video Game Controllers
Medical Systems
Q & A
- Q: What is the operating frequency of the MAX1470EWC+T?
A: The MAX1470EWC+T operates in the 315MHz band.
- Q: What is the supply voltage range for the MAX1470EWC+T?
A: The supply voltage range is from +3.0V to +3.6V.
- Q: What is the typical operating supply current of the MAX1470EWC+T?
A: The typical operating supply current is 5.5mA.
- Q: What is the shutdown supply current of the MAX1470EWC+T?
A: The shutdown supply current is 1.25µA.
- Q: What is the receive sensitivity of the MAX1470EWC+T?
A: The receive sensitivity is -115dBm.
- Q: How long does it take for the MAX1470EWC+T to start up?
A: The startup time is 250µs.
- Q: What kind of package does the MAX1470EWC+T come in?
A: It comes in a 28-pin TSSOP package.
- Q: What are some typical applications for the MAX1470EWC+T?
A: Typical applications include remote keyless entry systems, garage door openers, remote controls, wireless sensors, and security systems.
- Q: Does the MAX1470EWC+T have built-in image rejection?
A: Yes, it has built-in 53dB RF image rejection.
- Q: What is the operating temperature range of the MAX1470EWC+T?
A: The operating temperature range is from -40°C to +85°C.
