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MAX1472AKA+T
IF Transmitter, 300MHz to 450MHz, ASK, OOK, 100Kbps, 10.3dBm, 2.1V to 3.6V, SOT-23-8
產品總覽
The MAX1472AKA+T is a 300MHz to 450MHz, low power, crystal based ASK transmitter in 8 pin SOT-23 package. This highly integrated crystal referenced phase locked loop (PLL) VHF/UHF transmitter designed to transmit OOK/ASK data in 300MHz to 450MHz frequency range. The MAX1472 supports data rates up to 100Kbps and adjustable output power to more than +10dBm in to 50 ohm load. The crystal based architecture of MAX1472 eliminates many of the common problems with SAW transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of transmit frequency and reduced temperature dependence. These improvements enable better overall receiver performance when using a superheterodyne receiver such as MAX1470 or MAX1473. The MAX1472 is used in remote keyless entry, RF remote controls, tire pressure monitoring and radio controlled toys.
- Single supply voltage range from 2.1V to 3.6V
- Automotive temperature range from -40°C to 125°C
- Low operating supply current is 5.3mA (50% duty cycle, fRF=315MHz, 2.7V supply, 10dBm output power)
- Supports ASK with 90dB modulation depth
- Transmit efficiency with CW is 43.6% at fRF = 315MHz and 41.3% at fRF = 433MHz
- Transmit efficiency at 50% duty cycle is 37.6% at fRF = 315MHz and 35.1% at fRF = 433MHz
- Uses small low cost crystal
- Fast-on oscillator, 220µs start-up time
- Standby current of 5nA at VENABLE < VIL, TA < +85°C
- Phase noise of -84dBc/Hz at fOFFSET =100KHz, fRF = 315MHz
應用
Communications & Networking, Security, Wireless, Automation & Process Control, Automotive
產品訊息
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