Datasheet > STC5423

STC5423

更新时间： 2024-09-20 01:24:43

品牌	Logo	应用领域
CONNOR-WINFIELD		ATM 异步传输模式电信电信集成电路
页数	文件大小	规格书
60页	1121K
描述
Synchronous Clock for SETS

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STC5423 数据手册

STC5423

Synchronous Clock for SETS

Data sheet

Description

Features

Functional Specification

The RoHS 6/6 compliant STC5423 is a single chip clock

synchronization solution for applications in SDH/SETS,

SONET, and Synchronous Ethernet network elements. The

device is fully compliant with ITU-T G.813 option 1 and 2,

G.8262 EEC option1 and 2, Telcordia GR1244 and GR253.

- Complies with ITU-T G.813 opt1 and opt2, G.8262 EEC

opt1 and opt2, Telcordia GR1244 and GR253 (Stratum3/

4E/4/SMC)

- Two timing generators, T0 and T4; T4 may locks to T0’s

synchronized output

- Supports multiple master redundant application (T0 only)

The STC5423 accepts 2 clock reference inputs and gener-

ates 9 synchronized clock outputs including two frame

pulse outputs at 8kHz and 2kHz. Synchronized clock out-

puts may be programmed for a wide variety frequencies

from 1MHz up to 156.25MHz, in 1kHz steps. Reference

inputs are individually monitored for activity and quality.

Reference selection may be automatic, manual, hard-wired

manual.

- Accepts external oscillator at frequency of 10MHz,

12.8MHz, 19.2MHz,or 20MHz with programming

- Accepts 2 clock reference inputs

- Reference inputs are automatically frequency detected;

each is monitored for activity and quality

- Supports automatic, manual, and hard-wired manual ref-

erence selection

Two independent timing generators, T0 and T4, may oper-

ate in the Freerun, Synchronized, Pseudo Holdover and

Holdover mode. Each timing generator includes a DSP-

based PLL. Synchronized mode is external timing while fre-

erun, pseudo holdover and holdover mode are self-timing.

DSP-based PLL technology removes any external part

except the oscillator. It provides excellent performance and

reliability to STC5423.

- Outputs 9 synchronized clock outputs, including 2 frame

pulse clocks

- 9 independent clock synthesizers

- Phase-align or hit-less reference locking/switching

- Programmable loop bandwidth, from 0.1Hz to 100Hz

- Programmable phase skew in synthesizer level

- Supports bus interface: Intel, Motorola, Multiplex, SPI

- Single 3.3V operation

The STC5423 is clocked by an external oscillator (TCXO or

OCXO). Using a well-chosen external oscillator ensures the

STC5423 meet the required specifications and standards.

- IEEE 1149.1 JTAG boundary scan

- Available in TQFP100 package

Synthesizer G₁

CLK1, LVPECL/LVDS

CLK2, LVPECL/LVDS

SRCSW

Synthesizer G₂

8kHz

CLK8K

CLK2K

Synth

2kHz

Synthesizer G

CLK3

CLK4

T0 Timing

Generator

Synthesizer G₄

Synthesizer G₅

Synthesizer G₆

Synthesizer G₇

Synthesizer G_T4

Ref

Ref Clk

CLK5

CLK6

Monitor

2 LVCMOS

CLK7

T4 Timing

Generator

OCXO

TCXO

µP Interface

Figure 1:Functional Block Diagram

Page1of60 TM114 Rev:1.4

Date: October 24, 2011

12 3 4 5 6 7...60

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与STC5423相关器件

型号	品牌	获取价格	描述	数据表
STC5423-I	CONNOR-WINFIELD	获取价格	Clock Recovery Circuit, 1-Func, PQFP100, ROHS COMPLIANT, TQFP-100
STC5425	CONNOR-WINFIELD	获取价格	Clock Recovery Circuit, 1-Func, PQFP64, ROHS COMPLIANT, TQFP-64
STC5428	CONNOR-WINFIELD	获取价格	ATM/SONET/SDH Clock Recovery Circuit,
STC5429	CONNOR-WINFIELD	获取价格	Telecom IC, PQCC64,
STC5455	CONNOR-WINFIELD	获取价格	Synchronous Clock for SETS
STC5551F	KODENSHI	获取价格	NPN Silicon Transistor
STC5DNF30V	STMICROELECTRONICS	获取价格	Dual N-channel 30V - 0.032з - 4.5A - TSSOP8 2
STC5NF20V	STMICROELECTRONICS	获取价格	N-CHANNEL 20V - 0.030ohm - 5A TSSOP8 2.7V-DRI
STC5NF20V_07	STMICROELECTRONICS	获取价格	N-channel 20V - 0.030ohm - 5A - TSSOP8 2.7V-drive STripFET TM ll Power MOSFET
STC5NF20V_0710	STMICROELECTRONICS	获取价格	N-channel 20V - 0.030Ω - 5A - TSSOP8 2.7V-dri

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