CXB1586AR
Notes on Operation
1. External loop filters for PLLs
The CXB1586AR has two PLLs. One is for the transmitter and locks to the reference clock from REFCLK
input pin. Another one is for the receiver and locks to the received serial data from SDIN/SDIN∗ input pins.
They need external capacitors for the their loop filters. Typical values of the external capacitors are
indicated below.
C2
48
49
17
16
C1 : 0.01µF
C2 : 0.01µF
C1
2. Example of power supply circuit
3.3V
22µF
VCCT
0.1µF
22µF
VEET
VCCG
VCCE
0.1µF
VEEG
VEEE
22µF
VCCP
0.1µF
VEEP
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