Fujitsu MB15F74UV manual Application Example, Controller

Page 22

MB15F74UV

■APPLICATION EXAMPLE

	1000 pF				Controller
	TCXO				Controller
				(divide ratio setting)
			OSCIN	Clock	Data	LE
OUTPUT								OUTPUT
	GND							OUTPUT
	GND	1	18	17	16	15
		1	18	17	16	15
	1000 pF					finRF	1000 pF
							1000 pF
		2
	finIF	2				14
	finIF
	XfinIF	3				13
		3				13		VCO
VCO	1000 pF			MB15F74UV		XfinRF	1000 pF	VCO
VCO				MB15F74UV			1000 pF
		4				12
	GNDIF					GNDRF	VCCRF
LPF		5				11	VCCRF	LPF
								LPF
	VCCIF
	VCCIF					VCCRF	0.1 ∝F
		6	7	8	9	10
	DoIF					DoRF
	VCCIF
			PSIF		LD/	PSRF
					fout
	0.1 ∝F

Lock Detect

Note : Clock, Data, LE : The schmitt trigger circuit is provided (insert a pull-down or pull-up registor to prevent oscillation when open-circuit in the input) .

Image 22

Contents Package FeaturesDescription Pin plastic BCC LCC-18P-M05MB15F74UV PIN AssignmentsPIN Description Pin no DescriptionsBlock Diagram MB15F74UVAbsolute Maximum Ratings Parameter Symbol Rating Unit MinParameter Symbol Value Unit Remarks Min Typ Recommended Operating ConditionsParameter Symbol Condition Electrical CharacteristicsMin Typ V ≤ V do ≤ V CC − 0.5 Current rate Vs Ta Parameter Symbol Condition Value Unit Min TypCharge pump Vs V do −40 C ≤ Ta ≤ 85 CProgrammable Reference Counter Functional DescriptionProgrammable R10 R11 R12 R13 R14Divide ratio N11 N10 Data settingDivide ratio R14 R13 R12 R11 R10 Divide ratioCurrent value Phase comparator input FC IF, RF = Do IF, Do RFDivide ratio SW = LD/fout pin statePower Saving Mode Intermittent Mode Control Circuit Status PS pinParameter Min Typ Max Unit 100LD Output Logic Phase Comparator Output WaveformFC bit = IF-PLL section RF-PLL section LD outputController Divide ratio setting OscilloscopeFin input sensitivity Typical CharacteristicsCatalog guaranteed range RF-PLL input sensitivity vs. Input frequencySensitivity Oscin input sensitivityInput sensitivity vs. Input frequency InputMA mode Charge pump output current IDO mA Charge pump output voltage VDOFinIF input impedance Fin input impedanceFinRF input impedance Oscin input impedance Oscin input impedanceReference Information PLL Phase NoisePLL Reference Leakage Mkr x 439.99764 ∝s 50.0009 MHz Application Example ControllerOrdering Information Usage PrecautionsPart number Package Remarks Package Dimension Fujitsu Limited C18058S-c-1-1 Dimensions in mm inchesFujitsu Limited F0401