ds3102 Maxim Integrated Products, Inc., ds3102 Datasheet

ds3102

Manufacturer Part Number

ds3102

Description

Stratum 3 Timing Card Ic With Synchronous Ethernet Support

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.DS3102.pdf (141 pages)

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The DS3102 is a low-cost, feature-rich timing IC for

telecom timing cards. With 8 input clocks, the device

directly accepts both line timing from a large number of

line cards and external timing from external DS1/E1

BITS transceivers. The DS3102 continually monitors all

input clocks and performs automatic

switching if the primary reference fails.

complies with the Stratum 3 requirements of GR-1244,

GR-253, and the requirements of G.813 and G.8262.

The highly programmable DS3102 support numerous

input

for SONET/SDH, Synchronous Ethernet (1G, 10G,

and 100Mbps), wireless base stations, and CMTS

systems. PLL bandwidths from 0.5mHz to 400Hz are

supported, and a wide variety of PLL characteristics

and device features can be configured to meet the

needs of many different applications.

devices

arrangement for timing card equipment protection.

The DS3102 register set is backward compatible with

Semtech’s ACS8522 timing card IC. The DS3102 has a

different package and pin arrangement than the

ACS8522.

SONET/SDH Equipment Clocks (SECs)

Synchronous Ethernet Equipment Clocks (EECs)

Timing Card IC in WAN Equipment Including MSPPs,

+Denotes a lead-free/RoHS-compliant package.

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.

Rev: 012108

SPI is a trademark of Motorola, Inc.

DS3102GN

DS3102GN+

Ethernet Switches, Routers, DSLAMs, and

Wireless Base Stations

and output frequencies including rates required

PART

can

TEMP RANGE

-40°C to +85°C

configured

Ordering Information

General Description

Applications

PIN-PACKAGE

81 CSBGA (10mm)

hitless reference

Synchronous Ethernet Support

Stratum 3 Timing Card IC with

The T0 DPLL

Two DS3102

master/slave

♦

Synchronization for Stratum 3/4E/4, SMC, and

SEC

♦

8 Input Clocks

♦

7 Output Clocks

♦

General

♦

Meets Requirements of GR-1244 Stratum 3,

GR-253, G.812 Type IV, G.813, and G.8262

Stratum 3 Holdover Accuracy with Suitable

External Oscillator

Programmable Bandwidth: 0.5mHz to 400Hz

Hitless Reference Switching on Loss of Input

Automatic or Manual Phase Build-Out

Frequency Conversion Among SONET/SDH,

PDH, Ethernet, Wireless, and CMTS Rates

Four CMOS/TTL Inputs (≤ 125MHz)

Four LVDS/LVPECL/CMOS/TTL Inputs

(≤ 156.25MHz)

Three Optional Frame-Sync Inputs (CMOS/TTL)

Continuous Input Clock Quality Monitoring

Numerous Input Clock Frequencies Supported:

SONET/SDH: 6.48, N x 19.44, N x 51.84MHz

Ethernet xMII: 2.5, 25, 125, 156.25MHz

PDH: N x DS1, N x E1, N x DS2, DS3, E3

Frame Sync: 2kHz, 4kHz, 8kHz

Custom: Any Multiple of 2kHz Up to 131.072MHz,

Three CMOS/TTL Outputs (≤ 125MHz)

Two LVDS/LVPECL Outputs (≤ 312.50MHz)

Two Dual CMOS/TTL and LVDS/LVPECL Outputs

Five CMOS Outputs Have Additional Output Pins

That Can Be Powered at 2.5V or 3.3V

Numerous Output Clock Frequencies Supported:

SONET/SDH: 6.48, N x 19.44, N x 51.84MHz

Ethernet xMII: 2.5, 25, 125, 156.25, 312.5MHz

PDH: N x DS1, N x E1, N x DS2, DS3, E3

Other: 10, 10.24, 13, 30.72MHz

Frame Sync: 2kHz, 8kHz

Custom Clock Rates: Any Multiple of 2kHz Up to

Internal Compensation for Master Clock

Oscillator

SPI™ Processor Interface

1.8V Operation with 3.3V I/O (5V Tolerant)

Industrial Temperature Range

Any Multiple of 8kHz Up to 155.52MHz

77.76MHz, Any Multiple of 8kHz Up to

311.04MHz, Any Multiple of 10kHz Up to

388.79MHz

Maxim Integrated Products

DS3102

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