ZL30264 datasheet(2/93 Pages) MICROCHIP

2 / 93 page

ZL30264-ZL30267

Data Sheet

DS20006555A

Table of Contents

APPLICATION EXAMPLE ...............................................................................................................5

DETAILED FEATURES ...................................................................................................................5

2.1

INPUT CLOCK FEATURES .................................................................................................................5

2.2

APLL FEATURES .............................................................................................................................5

2.3

OUTPUT CLOCK FEATURES..............................................................................................................5

2.4

GENERAL FEATURES .......................................................................................................................5

2.5

EVALUATION SOFTWARE..................................................................................................................6

PIN DIAGRAM..................................................................................................................................7

PIN DESCRIPTIONS ........................................................................................................................8

FUNCTIONAL DESCRIPTION .......................................................................................................10

5.1

DEVICE IDENTIFICATION.................................................................................................................10

5.2

PIN-CONTROLLED AUTOMATIC CONFIGURATION AT RESET .............................................................10

5.2.1

ZL30264 and ZL30266

—Internal ROM, External or No EEPROM...................................................... 11

5.2.2

ZL30265 and ZL30267

—Internal EEPROM ........................................................................................ 11

5.3

LOCAL OSCILLATOR OR CRYSTAL ..................................................................................................12

5.3.1

External Oscillator ................................................................................................................................ 12

5.3.2

External Crystal and On-Chip Driver Circuit ........................................................................................ 12

5.3.3

Clock Doublers..................................................................................................................................... 13

5.3.4

Ring Oscillator (for Auto-Configuration) ............................................................................................... 13

5.4

INPUT SIGNAL FORMAT CONFIGURATION ........................................................................................14

5.5

APLL CONFIGURATION..................................................................................................................14

5.5.1

APLL Input Frequency ......................................................................................................................... 14

5.5.2

APLL Input Monitors............................................................................................................................. 14

5.5.3

APLL Input Selection............................................................................................................................ 14

5.5.4

APLL Output Frequency....................................................................................................................... 15

5.5.5

Fractional Output Divider ..................................................................................................................... 16

5.5.6

Numerically Controlled Oscillator (NCO) Mode ................................................................................... 17

5.5.6.1

Using the APLL’s Feedback Divider ................................................................................................ 17

5.5.6.2

Using the Fractional Output Divider................................................................................................. 17

5.5.7

Frequency Increment and Decrement ................................................................................................. 18

5.5.8

Spread-Spectrum Modulation Mode .................................................................................................... 18

5.5.8.1

Using the APLL’s Feedback Divider ................................................................................................ 18

5.5.8.2

Using the Fractional Output Divider................................................................................................. 19

5.5.9

APLL Phase Adjustment ...................................................................................................................... 20

5.6

OUTPUT CLOCK CONFIGURATION...................................................................................................20

5.6.1

Output Enable, Signal Format, Voltage and Interfacing ...................................................................... 20

5.6.2

Output Frequency Configuration.......................................................................................................... 21

5.6.3

Output Duty Cycle Adjustment ............................................................................................................. 22

5.6.4

Output Phase Adjustment .................................................................................................................... 22

5.6.5

Output-to-Output Phase Alignment...................................................................................................... 22

5.6.6

Output-to-Input Phase Alignment......................................................................................................... 22

5.6.7

Output Clock Start and Stop ................................................................................................................ 22

5.7

MICROPROCESSOR INTERFACE......................................................................................................23

5.7.1

SPI Slave ............................................................................................................................................. 23

5.7.2

SPI Master (ZL30264 and ZL30266 Only) ........................................................................................... 25

5.7.3

I2C Slave .............................................................................................................................................. 26

5.8

INTERRUPT LOGIC .........................................................................................................................28

5.9

RESET LOGIC ................................................................................................................................29

5.9.1

Design Considerations for Using an External RC Reset Circuit .......................................................... 29

5.10

POWER-SUPPLY CONSIDERATIONS.............................................................................................29

5.11

AUTO-CONFIGURATION FROM EEPROM OR ROM ......................................................................29

ZL30264 датащи(PDF) 2 Page - Microchip Technology

ZL30264 датащи(HTML) 2 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93

датащи скачать

ссылки URL