DS31406DK Maxim Integrated Products, DS31406DK Datasheet

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DS31406DK

Manufacturer Part Number
DS31406DK
Description
Power Management Modules & Development Tools DS31406 DEMO KIT DS31406 DEMO KIT
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS31406DK

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The DS31406 is a flexible, high-performance timing IC
for
synthesis applications. On each of its two input clocks
and fourteen output clocks, the device can accept or
generate nearly any frequency between 2kHz and
750MHz.
The input clocks are divided down, fractionally scaled as
needed, and continuously monitored for activity and
frequency accuracy. The best input clock is selected,
manually or automatically, as the reference clock for the
rest of the device. A flexible, high-performance digital
PLL locks to the selected reference and provides
programmable bandwidth, very high resolution holdover
capability, and truly hitless switching between input
clocks. The digital PLL is followed by a clock synthesis
subsystem which has seven fully programmable digital
frequency synthesis blocks, three high-speed low-jitter
APLLs, and 14 output clocks, each with its own 32-bit
divider and phase adjustment. The APLLs provide
fractional scaling and output jitter less than 1ps RMS.
For telecom systems, the DS31406 has all required
features and functions to serve as a central timing
function or as a line card timing IC. With a suitable
oscillator the DS31406 meets the requirements of
Stratum 2, 3E, 3, 4E, and 4, G.812 Types I–IV, G.813,
and G.8262.
Frequency Conversion Applications in a Wide Variety of
Telecom Line Cards or Timing Cards with Any Mix of
+Denotes a lead(Pb)-free/RoHS-compliant package.
SPI is a trademark of Motorola, Inc.
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple
revisions of any device may be simultaneously available through various sales channels. For information about device
errata, go to: www.maxim-ic.com/errata. For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
19-5711; Rev 0; 12/10
DS31406GN+
Equipment Types
SONET/SDH, Synchronous Ethernet and/or OTN
Ports in WAN Equipment Including MSPPs, Ethernet
Switches, Routers, DSLAMs, and Base Stations
diverse
PART
frequency
-40C to +85C
TEMP RANGE
2-Input, 14-Output, Single DPLL Timing IC
Ordering Information
General Description
conversion
ABRIDGED DATA SHEET
Applications
and
PIN-PACKAGE
256 CSBGA
frequency
with Sub-ps Output Jitter
Two Input Clocks
High-Performance DPLL
Seven Digital Frequency Synthesizers
Three Output APLLs
14 Output Clocks in Seven Groups
General Features
 Produce Any 2kHz Multiple Up to 77.76MHz
 Per-DFS Clock Phase Adjust
 Output Frequencies to 750MHz
 High Resolution Fractional Scaling for FEC and
 Less than 1ps RMS Output Jitter
 Simultaneously Produce Three Low-Jitter Rates from
 Nearly Any Frequency from <1Hz to 750MHz
 Each Group Slaves to a DFS Clock, Any APLL
 Each Has a Differential Output (3 CML, 4 LVDS/
 32-Bit Frequency Divider Per Output
 Two Sync Pulse Outputs: 8kHz and 2kHz
 Suitable Line Card IC or Timing Card IC for
 Accepts and Produces Nearly Any Frequency Up
 Internal Compensation for Local Oscillator
 SPI™ Processor Interface
64B/66B (e.g., 255/237, 255/238, 66/64) or Any
Other Scaling Requirement
the Same Reference (e.g., 622.08MHz for SONET,
255/237*622.08MHz for OTU2, and 156.25MHz for
10GE)
Clock, or Any Input Clock (Divided and Scaled)
LVPECL
Stratum 2/3E/3/4E/4, SMC, SEC/EEC, or SSU
to 750MHz Including 1Hz, 2kHz, 8kHz, NxDS1,
NxE1, DS2/J2, DS3, E3, 2.5M, 25M, 125M,
156.25M, and Nx19.44M Up to 622.08M
Frequency Error
Differential or CMOS/TTL Format
Any Frequency from 2kHz to 750MHz
Fractional Scaling for 64B/66B and FEC Scaling
(e.g., 64/66, 237/255, 238/255) or Any Other
Downscaling Requirement
Continuous Input Clock Quality Monitoring
Automatic or Manual Clock Selection
Two 2/4/8kHz Frame Sync Inputs
Hitless Reference Switching on Loss of Input
Automatic or Manual Phase Build-Out
Holdover on Loss of All Inputs
Programmable Bandwidth, 0.5mHz to 400Hz
1.8V Operation with 3.3V I/O (5V Tolerant)
)
and Separate CMOS/TTL Output
Maxim Integrated Products 1
DS31406
Features

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DS31406DK Summary of contents

Page 1

... Continuous Input Clock Quality Monitoring Automatic or Manual Clock Selection Two 2/4/8kHz Frame Sync Inputs Hitless Reference Switching on Loss of Input Automatic or Manual Phase Build-Out Holdover on Loss of All Inputs Programmable Bandwidth, 0.5mHz to 400Hz ) and Separate CMOS/TTL Output 1.8V Operation with 3.3V I/O (5V Tolerant) Maxim Integrated Products 1 ...

Page 2

ABRIDGED DATA SHEET Application Example DS31406 2 ...

Page 3

ABRIDGED DATA SHEET Block Diagram DS31406 SYNC1 SYNC2 Input Clock Block IC1 POS/NEG Frequency Scaler, 8 Activity Monitor, IC2 POS/NEG Freq. Monitor, Optional Inversion (per input clock) Clock status Selector JTRST JTMS JTAG JTCLK JTDI JTDO MFSYNC PLL Bypass DFS ...

Page 4

ABRIDGED DATA SHEET Detailed Features Input Clock Features  Two input clocks, differential or CMOS/TTL signal format  Input clocks can be any frequency from 2kHz up to 750MHz  Supported telecom frequencies include PDH, SDH, Synchronous Ethernet, OTU-1, OTU-2, ...

Page 5

ABRIDGED DATA SHEET Output Clock Features  14 output clock signals in seven groups  Output clock groups OC1, OC2, OC3 have a very high-speed differential output (current-mode logic, and a separate CMOS/TTL output (≤ 125MHz) ≤ 750MHz)  Output ...

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