GENERAL DESCRIPTION
The YTX1278 transceivers feature the LoRaTM long
range modem that provides ultra-long range spread
spectrum communication and high interference immunity
whilst minimising current consumption.
Using LoRaTM modulation technique YTX1278
can achieve a sensitivity of over -140dBm using a low
cost crystal and bill of materials. The high sensitivity
combined with the integrated +20 dBm power amplifier
yields industry leading link budget making it optimal for
any application requiring range or robustness. LoRaTM
also provides significant advantages in both blocking and
selectivity over conventional modulation techniques,
solving the traditional design compromise between range,
interference immunity and energy consumption.
These devices also support high performance (G)FSK
modes for systems including WMBus, IEEE802.15.4g. The
YTX1278 deliver exceptional phase noise,
selectivity, receiver linearity and IIP3 for significantly
lower current consumption than competing devices.
KEY PRODUCT FEATURES
LoRaTM Modem.
164 dB maximum link budget.
+20 dBm - 100 mW constant RF output vs. 3.3V supply.
+14 dBm high efficiency PA.
Programmable bit rate up to 300 kbps.
High sensitivity: down to -144 dBm.
Bullet-proof front end: IIP3 = -12.5 dBm.
Excellent blocking immunity.
Low RX current of 10.3 mA, 200 nA register retention.
Fully integrated synthesizer with a resolution of 61 Hz.
FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
Built-in bit synchronizer for clock recovery.
Preamble detection.
127 dB Dynamic Range RSSI.
Automatic RF Sense and CAD with ultra-fast AFC.
Packet engine up to 256 bytes with CRC.
Built-in temperature sensor and low battery indicator.
Modue Size： 16*16mm
APPLICATIONS
Automated Meter Reading.
Home and Building Automation.
Wireless Alarm and Security Systems.
Industrial Monitoring and Control
Long range Irrigation Systems
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