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15
KX-NS5170X/KX-NS5170SX
5.2.3.
Power Supply Circuit
The input from the main power supply is in 2 voltage levels: +3.3V, +40V.
Each required voltage levels are generated on board DC-DC converter.
Power supply block diagram is described as below figure.
Each required voltage levels are generated on board DC-DC converter.
Power supply block diagram is described as below figure.
DCDC
SLIC/CODEC
DLC FPGA
ROM/RAM
ASIC
SLIC/CODEC
Vbat
DCDRV
SLT Power Supply
Bell Signal
MW
Bell Signal
MW
+3.3V
+40V Input
+3.3V Input
DCDC
DCDC
+15V
+5V
DPT(+40V) Power Supply
DPT(+15V)/APT Power Supply
Pulse Transformer
LDO
LDO
DLC FPGA
DLC FPGA
+2.5V
+1.2V
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