Datasheet > MK2049-34SAI

MK2049-34SAI

更新时间： 2024-11-24 22:30:07

品牌	Logo	应用领域
矽成 - ICSI		石英晶振压控振荡器通信时钟
页数	文件大小	规格书
8页	137K
描述
3.3 Volt Communications Clock VCXO PLL

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MK2049-34SAI 数据手册

MK2049-34A

3.3 Volt Communications Clock VCXO PLL

Description

Features

The MK2049-34A is a VCXO Phased Locked Loop

(PLL) based clock synthesizer that accepts multiple

input frequencies. With an 8 kHz clock input as a

reference, the MK2049-34A generates T1, E1, T3, E3,

ISDN, xDSL, and other communications frequencies.

This allows for the generation of clocks

frequency-locked and phase-locked to an 8 kHz

backplane clock, simplifying clock synchronization in

communications systems. The MK2409-34 can also

accept a T1 or E1 input clock and provide the same

output for loop timing. All outputs are frequency locked

together and to the input.

• Packaged in 20-pin SOIC

• 3.3 V + 5% operation

• Fixed I/O phase relationship on all selections

• Meets the TR62411, ETS300 011, and GR-1244

specification for MTIE, Pull-in/Hold-in Range, Phase

Transients, and Jitter Generation for Stratum 3, 4,

and 4E

• Accepts multiple inputs: 8 kHz backplane clock, Loop

Timing frequencies, or 10 to 36 MHz

• Locks to 8 kHz + 100 ppm (External mode)

• Buffer Mode allows jitter attenuation of 10 to 36 MHz

This part also has a jitter-attenuated Buffer capability.

In this mode, the MK2049-34A is ideal for filtering jitter

from 27 MHz video clocks or other clocks with high

jitter.

input and x1/x0.5 or x2/x4 outputs

• Exact internal ratios enable zero ppm error

• Output clock rates include T1, E1, T3, E3, ISDN,

xDSL, and the OC3 submultiples

ICS can customize these devices for many other

different frequencies.

• See the MK2049-01, -02, and -03 for more selections

at 5 V

Block Diagram

EXTERNAL PULLABLE CRYSTAL

(external loop filter)

INPUT REFERENCE

CLOCK

FREQUENCY

MULTIPLYING

VCXO-BASED

PLL

CLOCK OUTPUT

(TYPICALLY 8KHZ)

PLL

(MASTER CLOCK

GENERATOR)

CLOCK OUTPUT / 2

8 KHZ (REGENERATED)

FREQUENCY SELECT

MDS 2049-34A A

Revision 032504

Integrated Circuit Systems, Inc. z 525 Race Street, San Jose, CA 95126 z tel (408) 297-1201 z www.icst.com

12 3 4 5 6 7 8

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与MK2049-34SAI相关器件

型号	品牌	获取价格	描述	数据表
MK2049-34SAILFTR	IDT	获取价格	Clock Generator, 77.76MHz, PDSO20, 0.300 INCH, ROHS COMPLIANT, SOIC-20
MK2049-34SAITR	ICSI	获取价格	3.3 Volt Communications Clock VCXO PLL
MK2049-34SAITR	IDT	获取价格	Clock Generator, 77.76MHz, PDSO20, 0.300 INCH, SOIC-20
MK2049-34SI	ICSI	获取价格	3.3 V Communications Clock PLL
MK2049-34SILF	IDT	获取价格	Clock Generator, 77.76MHz, PDSO20, 0.300 INCH, SOIC-20
MK2049-34SILFTR	IDT	获取价格	Clock Generator, 77.76MHz, PDSO20, 0.300 INCH, SOIC-20
MK2049-34SITR	ICSI	获取价格	3.3 V Communications Clock PLL
MK2049-35	ICSI	获取价格	3.3 V Communications Clock PLL
MK2049-35SI	ICSI	获取价格	3.3 V Communications Clock PLL
MK2049-35SITR	ICSI	获取价格	3.3 V Communications Clock PLL