ZL30260-ZL30263
Data Sheet
Table of Contents
1. APPLICATION EXAMPLE ............................................................................................................ 5
2. 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
3. PIN DIAGRAM............................................................................................................................... 6
4. PIN DESCRIPTIONS ..................................................................................................................... 7
5. FUNCTIONAL DESCRIPTION ...................................................................................................... 9
5.1 DEVICE IDENTIFICATION ................................................................................................................ 9
5.2 PIN-CONTROLLED AUTOMATIC CONFIGURATION AT RESET ............................................................. 9
5.2.1 ZL30260 and ZL30262—Internal ROM, External or No EEPROM...................................................... 10
5.2.2 ZL30261 and ZL30263—Internal EEPROM ........................................................................................ 10
5.3 LOCAL OSCILLATOR OR CRYSTAL ................................................................................................ 11
5.3.1 External Oscillator ................................................................................................................................ 11
5.3.2 External Crystal and On-Chip Driver Circuit ........................................................................................ 11
5.3.3 Clock Doublers..................................................................................................................................... 12
5.3.4 Ring Oscillator (for Auto-Configuration) ............................................................................................... 13
5.4 INPUT SIGNAL FORMAT CONFIGURATION...................................................................................... 13
5.5 APLL CONFIGURATION ............................................................................................................... 13
5.5.1 APLL Input Frequency ......................................................................................................................... 13
5.5.2 APLL Input Monitors............................................................................................................................. 13
5.5.3 APLL Input Selection............................................................................................................................ 13
5.5.4 APLL Output Frequency....................................................................................................................... 14
5.5.5 Fractional Output Divider ..................................................................................................................... 15
5.5.6 Numerically Controlled Oscillator (NCO) Mode ................................................................................... 16
5.5.6.1 Using the APLL’s Feedback Divider ................................................................................................ 16
5.5.6.2 Using the Fractional Output Divider ................................................................................................. 16
5.5.7 Frequency Increment and Decrement ................................................................................................. 17
5.5.8 Spread-Spectrum Modulation Mode .................................................................................................... 17
5.5.8.1 Using the APLL’s Feedback Divider ................................................................................................ 17
5.5.8.2 Using the Fractional Output Divider ................................................................................................. 18
5.5.9 APLL Phase Adjustment ...................................................................................................................... 19
5.6 OUTPUT CLOCK CONFIGURATION ................................................................................................ 19
5.6.1 Output Enable, Signal Format, Voltage and Interfacing ...................................................................... 19
5.6.2 Output Frequency Configuration .......................................................................................................... 20
5.6.3 Output Duty Cycle Adjustment ............................................................................................................. 21
5.6.4 Output Phase Adjustment .................................................................................................................... 21
5.6.5 Output-to-Output Phase Alignment...................................................................................................... 21
5.6.6 Output-to-Input Phase Alignment......................................................................................................... 21
5.6.7 Output Clock Start and Stop ................................................................................................................ 21
5.7 MICROPROCESSOR INTERFACE ................................................................................................... 22
5.7.1 SPI Slave ............................................................................................................................................. 22
5.7.2 SPI Master (ZL30260 and ZL30262 Only) ........................................................................................... 24
5.7.3 I2C Slave .............................................................................................................................................. 25
5.8 INTERRUPT LOGIC ...................................................................................................................... 27
5.9 RESET LOGIC ............................................................................................................................. 28
5.9.1 Design Considerations for Using an External RC Reset Circuit .......................................................... 28
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