MB15U36 Datasheet, PDF (2/23 Pages) Fujitsu Component Limited. – Dual PLL Frequency Synthesizer with On-Chip Prescaler

MB15U36
Table of Contents
Pin Descriptions: MB15U36 ................................................................................................................................................... 4
Block Diagram: MB15U36 ..................................................................................................................................................... 5
Absolute Maximum Ratings .................................................................................................................................................... 6
Recommended Operating Conditions........................................................................................................................................ 6
Handling Precautions...................................................................................................................................................... 6
Electrical Characteristics........................................................................................................................................................ 7
Measurement Circuit (fin, OSCIN Input Sensitivity) .................................................................................................................... 9
Typical Electrical Characteristics ........................................................................................................................................... 10
Reference Information ................................................................................................................................................... 13
Functional Descriptions ....................................................................................................................................................... 14
Serial Data Input .......................................................................................................................................................... 14
Table 1: Control Bits ..................................................................................................................................................... 14
Shift Register Configuration for the Programmable Reference Counter .......................................................................... 14
Shift Register Configuration for the Programmable Counter ........................................................................................ 15
Table 2: Binary 14-bit Programmable Reference Counter Data Setting................................................................................. 15
Table 3: Phase Comparator Phase Switching Data Setting.................................................................................................. 15
Table 4: Charge Pump Current Setting ............................................................................................................................ 16
Table 5: Charge Pump Output Impedance Setting ............................................................................................................. 16
Table 6: LD/fOUT Output Select Data Setting.................................................................................................................... 16
Table 7: Binary 11-bit Programmable Counter Data Setting............................................................................................... 16
Table 8: Binary 7-bit Swallow Counter Data Setting ......................................................................................................... 17
Table 9: Prescaler Data Setting ...................................................................................................................................... 17
Power Saving Mode (Intermittent Mode Control Circuit) ........................................................................................................ 17
Table 10: Power Save Internal Shutdown Logic.................................................................................................................. 17
Serial Data Input Timing ..................................................................................................................................................... 18
Table 11: Timing Parameters.......................................................................................................................................... 18
Power-ON Timing Diagram ........................................................................................................................................... 18
Phase Detector Output Waveform .......................................................................................................................................... 19
Application Example ........................................................................................................................................................... 20
Application Example: Fastlock Mode ..................................................................................................................................... 21
Ordering Information .......................................................................................................................................................... 22
Package Dimensions ........................................................................................................................................................... 23
Fujitsu Microelectronics, Inc. 3