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  Microsemi Electronic Components Datasheet  

ZL30261 Datasheet

Any-to-Any Clock Multiplier and Frequency Synthesizer

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Register Map: Section 6.2
Features
Four Flexible Input Clocks
One crystal/CMOS input
Two differential/CMOS inputs
One single-ended/CMOS input
Any input frequency from 9.72MHz to 1.25GHz
(300MHz max for CMOS)
Activity monitors, automatic or manual switching
Glitchless clock switching by pin or register
6 or 10 Any-Frequency, Any-Format Outputs
Any output frequency from 1Hz to 1045MHz
High-resolution frac-N APLL with 0ppm error
The APLL has a fractional divider and an
integer divider to make two independent
frequency families
Output jitter from integer multiply and dividers
as low as 0.17ps RMS (12kHz-20MHz)
Output jitter from fractional dividers is typically
< 1ps RMS, many frequencies <0.5ps RMS
Each output has an independent divider
Each output configurable as LVDS, LVPECL,
HCSL, 2xCMOS or HSTL
In 2xCMOS mode, the P and N pins can be
different frequencies (e.g. 125MHz and 25MHz)
Multiple output supply voltage banks with
CMOS output voltages from 1.5V to 3.3V
Precise output alignment circuitry and per-
output phase adjustment
ZL30260-ZL30263
1-APLL, 6- or 10-Output Any-to-Any Clock
Multiplier and Frequency Synthesizer
Data Sheet
October 2018
Ordering Information
ZL30260LDG1
ZL30260LDF1
ZL30261LDG1
ZL30261LDF1
ZL30262LDG1
ZL30262LDF1
ZL30263LDG1
ZL30263LDF1
ext. EEPROM
ext. EEPROM
int. EEPROM
int. EEPROM
ext. EEPROM
ext. EEPROM
int. EEPROM
int. EEPROM
6 Outputs
6 Outputs
6 Outputs
6 Outputs
10 Outputs
10 Outputs
10 Outputs
10 Outputs
Trays
Tape and Reel
Trays
Tape and Reel
Trays
Tape and Reel
Trays
Tape and Reel
Matte Tin
Package size: 8 x 8 mm, 56 Pin QFN
-40C to +85C
Per-output enable/disable and glitchless
start/stop (stop high or low)
General Features
Automatic self-configuration at power-up from
external (ZL30260 or 2) or internal (ZL30261 or 3)
EEPROM; up to 8 configurations pin-selectable
External feedback for zero-delay applications
Numerically controlled oscillator mode
Spread-spectrum modulation mode
Generates PCIe 1, 2, 3, 4 compliant clocks
Easy-to-configure design requires no external
VCXO or loop filter components
SPI or I2C processor Interface
Core supply voltage options: 2.5V only, 3.3V
only, 1.8V+2.5V or 1.8V+3.3V
Space-saving 8x8mm QFN56 (0.5mm pitch)
Applications
Frequency conversion and frequency synthesis in
a wide variety of equipment types
IC1P, IC1N
IC2P, IC2N
IC3P
XA
XB
RSTN
AC0/GPIO0
AC1/GPIO1
AC2/GPIO2
TEST/GPIO3
IF0/CSN
IF1/MISO
SCL/SCLK
SDA/MOSI
xtal
driver
DIV
DIV
DIV
DIV
x2
Int DIV
x2 APLL
Fractional-N
Figure 5
Frac DIV
bypass
Path 2
Microprocessor
Port
(SPI or I2C Serial)
and GPIO Pins
DIV1
DIV2
DIV3
DIV4
DIV5
DIV6
DIV7
DIV8
DIV9
DIV10
VDDOA
OC1P, OC1N
OC2P, OC2N
VDDOB
OC3P, OC3N
VDDOC
OC4P, OC4N
OC5P, OC5N
VDDOD
OC6P, OC6N
OC7P, OC7N
VDDOE
OC8P, OC8N
VDDOF
OC9P, OC9N
OC10P, OC10N
10-output
devices only
Figure 1 - Functional Block Diagram
1
Microsemi Confidential
Copyright 2018. Microsemi Corporation. All Rights Reserved.


  Microsemi Electronic Components Datasheet  

ZL30261 Datasheet

Any-to-Any Clock Multiplier and Frequency Synthesizer

No Preview Available !

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 ZL30262Internal ROM, External or No EEPROM...................................................... 10
5.2.2 ZL30261 and ZL30263Internal 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
2
Microsemi Confidential


Part Number ZL30261
Description Any-to-Any Clock Multiplier and Frequency Synthesizer
Maker Microsemi
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ZL30261 Datasheet PDF






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