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DM630 is a highly integrated, low-power power line BFSK/BPSK dual mode multi frequency spread spectrum chip.DM630 chip supports two independent sets of system clock, can set up two completely independent BFSK and BPSK channel.DM630 support multi frequency carrier, set a number of different frequencies of FSK and PSK channel, solve the power interference the problem effectively.
DM630 carrier channel characteristic:
 
modulation methods
BFSK/BPSK
central frequency
60~500KHZ
bandwidth
15KHZ
The length of spread spectrum sequence
15/40/63bit
communication method
half-duplex
Bit rate  
7.5/10/20.8KBps
Data rate
50~5000Bps
Relay depth
Class 15
PSK DM630 channel characteristics:
1) using 15bit direct sequence spread spectrum, anti interference performance is good
2) hardware related synchronization mechanism, clock synchronization precision and stability
3) support a variety of frequency switching, more real
4) support address compression, high communication efficiency
5) support forward error correction code to ensure the reliability of the communication
6) with received signal strength indication RSSI
7) using centralized routing, and has the function of automatically reporting table number
8) support hardware phase identification function
9) with the signal level control function, reduce the power grid noise
FSK DM630 channel features:
1) FSK hardware coherent demodulation technology, high sensitivity
2) with the hardware sampling of the code matching function, clock synchronization accuracy and stability
3) support address compression, high communication efficiency
4) support for automatic acquisition of address and short address settings
5) with received signal strength indication RSSI
6) using centralized routing, and has the function of automatically reporting table number
7) support hardware phase identification function
8) with the signal level control function, reduce the power grid noise