Chapter 3Clock GeneratorOperation III - 73.3.2 Setup of Input FrequencyInput frequency range of clock generator is 5 MHz (minimum) and 15 MHz (maximum). When the input clock ismultiplied, the PLL output frequency (PLLOUT) needs to be set to be 40 MHz to 60 MHz. Table: 3.3.3 shows theinput frequency and PLL multiple magnification to be set.Table:3.3.3 Setting of PLL Multiple Magnification for Input Frequency3.3.3 Connection Example of OscillatorFigure 3.3.1 shows basic configuration connected with a ceramic oscillator, and table 3.3.4 shows recommendedoscillators and the circuit constants.Figure:3.3.1 Connection Example of Ceramic OscillatorTable:3.3.4 Recommended Ceramic Oscillator and Circuit ConstantInput frequency PLL multiple magnification4 multiplication 6 multiplication 8 multiplication5 MHz Setting prohibited Setting prohibited 40 MHz7 MHz Setting prohibited 42 MHz 56 MHz8 MHz Setting prohibited 48 MHz Setting prohibited10 MHz 40 MHz 60 MHz Setting prohibited15 MHz 60 MHz Setting prohibited Setting prohibitedFrequency[Hz] Type Ceramic oscillatorProduct Number‘Recommended circuit constantLoad CapacityC1=C2 [pF]External feedback resistorRx [Ω]Dumping resistorRd [Ω]5.000M lead CSTLS5MOOG56-B0 (47) Open 0SMD CSTCR5MOOG55-R0 (39) Open 07.000M lead CSTLS7MOOG56-B0 (47) Open 0SMD CSTCR7MOOG55-R0 (39) Open 08.000M lead CSTLS8MOOG56-B0 (47) Open 0SMD CSTCE8MOOG55-R0 (33) Open 010.000M lead CSTLS10MOG56-B0 (47) Open 0SMD CSTCE10MOG55-R0 (33) Open 015.000M SMD CSTCE15MOV53-R0 (15) Open 0* ( ) shows capacity built into the oscillator.RxRdR FB =1 MΩ(typ)OSCIOSCOC1 C2Ceramic oscillation Internalfeedbackresistor
