Fujitsu MB15F74UV manual Divide ratio SW =, Current value, LD/fout pin state

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MB15F74UV

•Prescaler Data Setting

Divide ratio

 

 

SW = “1”

SW = “0”

 

 

 

 

 

 

Prescaler divide ratio IF-PLL

 

32/33

64/65

 

 

 

 

 

 

Prescaler divide ratio RF-PLL

 

64/65

128/129

 

 

 

 

 

 

• Charge Pump Current Setting

 

 

 

Current value

 

CS

 

 

 

 

 

 

 

 

 

 

±6.0 mA

 

1

 

 

 

 

 

 

 

 

 

 

 

±1.5 mA

 

0

 

 

 

 

 

 

 

 

 

 

 

•LD/fout output Selectable Bit Setting

LD/fout pin state

LDS

T1

T2

 

 

 

 

 

 

 

 

 

0

0

0

 

 

 

 

 

LD output

 

0

1

0

 

 

 

 

 

 

 

 

 

0

1

1

 

 

 

 

 

 

 

 

frIF

1

0

0

 

 

 

 

 

 

fout

 

frRF

1

1

0

output

 

fpIF

1

0

1

 

 

 

 

 

 

 

 

fpRF

1

1

1

 

 

 

 

 

 

•Phase Comparator Phase Switching Data Setting

Phase comparator input

FCIF, RF = “1”

FC IF, RF = “0”

 

 

DoIF, DoRF

DoIF, DoRF

 

 

 

 

fr > fp

H

L

 

 

 

fr < fp

L

H

 

 

 

fr = fp

Z

Z

 

 

 

Z : High-impedance

 

 

Depending upon the VCO and LPF polarity, FC bit should be set.

High

(1)

(1)VCO polarity FC = “1”

(2)VCO polarity FC = “0”

VCO Output

Frequency

(2)

LPF Output voltage

 

Max

 

Note : Give attention to the polarity for using active type LPF.

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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
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