General Description
The MAX7060 frequency and power-programmable ASK/FSK transmitter operates at 280MHz to 450MHz frequencies. This device incorporates a fully integrated fractional-N synthesizer, which allows the user to set the RF operating frequency to a large fraction of the 280MHz to 450MHz frequency range with a single crystal. For example, the MAX7060 can be tuned from 285MHz to 420MHz with a 15MHz crystal. The RF output power is user-controlled between +14dBm and -14dBm, with a 5V supply or with battery voltages as low as 3.2V. At the minimum specified battery voltage of 2.1V, the RF output power-control range is between +10dBm and -14dBm. To maintain a good output power match across a broad range of frequencies, the MAX7060 also contains a programmable matching capacitor connected in parallel with the power amplifier (PA) output.
FEATUREs
♦ Fully Integrated, Fast Fractional-N PLL
280MHz to 450MHz RF Frequency
Frequency Range 100% Tested at +125NC
< 250µs Startup Time
Adjustable FSK Mark and Space Frequencies
Ultra-Clean FSK Modulation
50kbps Manchester Data Rate ASK
70kbps Manchester Data Rate FSK
♦ Programmable Power Amplifier
+14dBm Tx Power with 5V Supply
+10dBm Tx Power at 2.1V Supply
28dB Power-Control Range in 1dB Steps
♦ Tunable PA Matching Capacitor
♦ Control Through SPI or Manual Settings
♦ Low Shutdown Current for 2.1V to 3.6V Supply
400nA Standby Current, Power-On-Reset
(POR) Active
5nA Shutdown Current, POR Inactive
♦ Supply Flexibility
2.1V to 3.6V Single-Supply Operation or
4.5V to 5.5V Supply Operation with Internal
Regulators
♦ 24-Pin (4mm x 4mm) TQFN Package
♦ FCC Part 15, ETSI EN 300 220 Compliant*
APPLICATIONs
Garage-Door Openers
Remote Controls
Home and Industrial Automation
Sensor Networks
Security Systems