Datasheet > STC3500

STC3500

更新时间： 2024-11-25 06:14:35

品牌	Logo	应用领域
CONNOR-WINFIELD		/
页数	文件大小	规格书
48页	513K
描述
INTEGRATED - STRATUM 3 TIMING SOURCE

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中文翻译

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数据手册

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STC3500 数据手册

STC3500

INTEGRATED - STRATUM 3

TIMING SOURCE

Description

Features

• Complies with Telcordia GR-1244-CORE,

GR-253-CORE, and ITU-T G.812/G.813

2111 Comprehensive Drive

Aurora, Illinois 60505

Phone: 630-851-4722

Fax: 630- 851- 5040

The STC3500 is an integrated single chip

solution for the Synchronous Timing Source

in SONET/SDH network elements. The

device generates four synchronous clocks,

including BITS, and is fully compliant with

Telcordia GR-1244-CORE, GR-253-CORE

and ITU-T G.812/G.813.

• Supports Master/Slave operation

• Supports Free Run, Locked, and Hold Over

modes

www.conwin.com

• Accepts 8 reference inputs from 8 kHz to

77.76 MHz and one 8 kHz cross reference

The STC3500 can operate in Free Run,

locked or Hold Over mode. In the Free Run

mode, it locks on an OCXO or TCXO. In the

locked mode, it locks on one of 8 input

reference clocks. The frequency of each input

reference clock can be user selected or

automatically detected by the device. The

active reference can be automatically selected

by the device based on a priority table or

manually controlled by the user. All reference

switches are hit-less. In Hold Over mode, the

device generates outputs based on the

• Continuous input reference quality

monitoring

• Input reference frequencies are

automatically detected

• Automatic or manual selection for active

reference

• Supports hardwire pins to select active

reference

• Four output signals: one selectable up to

155.52 MHz, one fixed at 8 kHz, one multi-

frame sync fixed at 2 kHz, and 1.544 MHz

or 2.048 MHz BITS output

frequency history of the last locked reference.

The STC3500 supports the Master or Slave

mode of operation for redundant designs. In

master mode, the device operates in Free

Run, locked or Hold Over. In slave mode, the

output clocks are locked to the master’s

primary Sync_Clk or 8 kHz synchronous clock

output and are phase offset adjustable.

• Output phase is adjustable in slave mode

• Frequency ramp control during reference

switching

• Hit-less reference switching

• Configurable bandwidth filter

Parallel or serial bus interfaces are provided

to access STC3500 internal control and

status registers.

• Supports SPI and 8-bit parallel bus interface

• IEEE 1149.1 JTAG boundary scan

• Available in FBGA144 package

Major operations can be performed from either

the bus interface or external hardwire pins.

Functional Block Diagram

OCXO/TCXO

12.8 MHz

VCXO

DAC

EEPROM

Xref

Ref1-8

Reset

Sync_Clk

Sync_8K

Reference Input Monitor

M/S

Sync_2K

BITS_Clk

HM_Ref

Sel0-3

Control

Mode

Reference

Selection

DPLL

APLL

BITS_Sel

VC_Sel

Bmode

Bulletin

TM060

Reference Priority,

Revertivity and Mask

Table

LOS

Dmode

Page

1 of 48

ALE/SCLK

RW/SDI

LOL

Revision

P06

Hold_Avail

Date

22 NOV 04

RDY/SDO

AD0-7

Bus Interface

STC3500

INTR

12 3 4 5 6 7...48

中文翻译

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与STC3500相关器件

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STC352	AUK	获取价格	NPN Silicon Transistor
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STC3800	CONNOR-WINFIELD	获取价格	INTEGRATED - STRATUM 3E TIMING SOURCE
STC3800_15	CONNOR-WINFIELD	获取价格	INTEGRATED - STRATUM 3E TIMING SOURCE
STC4.7-15C2	VISHAY	获取价格	Subminiature, Leaded Solid Tantalum Capacitors Polar or Non-Polar
STC4.715C2AJ	VISHAY	获取价格	CAPACITOR, TANTALUM, SOLID, POLARIZED, 15 V, 4.7 uF, THROUGH HOLE MOUNT, AXIAL LEADED
STC4.715C2AK	VISHAY	获取价格	CAPACITOR, TANTALUM, SOLID, POLARIZED, 15 V, 4.7 uF, THROUGH HOLE MOUNT, AXIAL LEADED
STC4.715C2AM	VISHAY	获取价格	CAPACITOR, TANTALUM, SOLID, POLARIZED, 15 V, 4.7 uF, THROUGH HOLE MOUNT, AXIAL LEADED
STC4.715C2RJ	VISHAY	获取价格	CAPACITOR, TANTALUM, SOLID, POLARIZED, 15 V, 4.7 uF, THROUGH HOLE MOUNT, RADIAL LEADED
STC4.715C2RK	VISHAY	获取价格	CAPACITOR, TANTALUM, SOLID, POLARIZED, 15 V, 4.7 uF, THROUGH HOLE MOUNT, RADIAL LEADED

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