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10
KX-TDA0158CE
4.2.6.
Power Supply Circuit
5.5V, 1.8V, 3.2V, 1.2V, 2.5V, and 2.18V is generated in CS. 2.18V and 2.5V are the power supply for RF module.
3.2V is the power supply for logic circuit. 1.2V and 2.5V is used as the power supply of FPGA.
3.2V is the power supply for logic circuit. 1.2V and 2.5V is used as the power supply of FPGA.
(1) Input Filter, Rectifier Circuit
Input filter for noise rejection and rectifier circuit.
(2) DC/DC Converter Circuit
Generate 5.5V from DC40V power supply.
(3) Power Back up Circuit
All power supply is back- upped by secondary electric double layer capacitor.
Input filter for noise rejection and rectifier circuit.
(2) DC/DC Converter Circuit
Generate 5.5V from DC40V power supply.
(3) Power Back up Circuit
All power supply is back- upped by secondary electric double layer capacitor.
4.2.7.
Clock Circuit
2 type of clock are used in this CS.
(1) BBIC Clock
10.368MHz is used for BBIC clock. The frequency is calibrated by BBIC(IC100).
(2) FPGA Clock
16.384MHz crystal oscillator is used for FPGA(IC103).
(1) BBIC Clock
10.368MHz is used for BBIC clock. The frequency is calibrated by BBIC(IC100).
(2) FPGA Clock
16.384MHz crystal oscillator is used for FPGA(IC103).
4.2.8.
Reset Circuit
IC105(Reset IC) supplies power on reset signal to BBIC. Reset signal for FPGA is supplied from BBIC port.
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