Description

The MAX1479ATE+T is a crystal-referenced phase-locked-loop (PLL) VHF/UHF transmitter designed for transmitting ASK, OOK, and FSK data in the 300MHz to 450MHz frequency range. It supports data rates up to 100kbps in ASK mode and 20kbps in FSK mode (both Manchester coded). With an adjustable output power of more than +10dBm into a 50Ω load, it offers improved overall receiver performance when used with a superheterodyne receiver.

Specifications and features

• ETSI-Compliant EN300 220
• +2.1V to +3.6V Single-Supply Operation
• Supports ASK, OOK, and FSK Modulations
• Adjustable FSK Shift
• +10dBm Output Power into 50Ω Load
• Low Supply Current (6.7mA in ASK Mode, and 10.5mA in FSK Mode)
• Uses Small Low-Cost Crystal
• Small 16-Pin TQFN Package
• Fast-On Oscillator—200µs Startup Time
• Programmable Clock Output

Application Scenarios

The MAX1479ATE+T is commonly used in a variety of applications including remote keyless entry, tire pressure monitoring, security systems, radio-controlled toys, wireless game consoles, wireless computer peripherals, wireless sensors, RF remote controls, and garage door openers.

Comparison

• Crystal-based architecture providing greater modulation depth
• Faster frequency settling
• Higher tolerance of the transmit frequency
• Reduced temperature dependence

No specific disadvantages are mentioned for the MAX1479ATE+T model.