NJM2555

更新时间： 2024-02-10 04:35:59

品牌	Logo	应用领域
NJRC		石英晶振压控振荡器
页数	文件大小	规格书
3页	83K
描述
622MHz VCXO IC

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技术参数
数据手册

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NJM2555 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
风险等级：	5.7	JESD-609代码：	e6
湿度敏感等级：	1	电信集成电路类型：	TELECOM CIRCUIT
端子面层：	Tin/Bismuth (Sn/Bi)	Base Number Matches：	1

NJM2555 数据手册

NJM2555

622MHz VCXO IC

■GENERAL DESCRIPTION

■PACKAGE OUTLINE

The NJM2555 is a 622.08MHz VCXO (Voltage Controlled Crystal

Oscillator) IC designed for optical fiber telecommunication systems, using

NewJRC superior Bipolar technology, which consists of an oscillation

amplifier, a variable capacitor diode, a quadruple (x4) frequency circuit, high

pass filter, and limiter amplifier. The NJM2555 generate x4 frequency to add

the only 155.52MHz crystal and LC filter, and the output is differential

LVPECL equivalent. The recommended input crystal frequency is from 120

to 160 MHz. The jitter performance and phase noise is very low based on

excellent oscillation circuit. This can be applied to optical communication,

especially the WDM system.

NJM2555C-C

NJM2555V

■FEATURES

■Operating Voltage

■Frequency range of Crystal

■Output Frequency Range

■Output Level

+3.0V to +3.6V

155.52 MHz typ. (120 to 160 MHz)

622.08 MHz typ. (480 to 640 MHz)

differential LVPECL equivalent

■A Variable Capacitor on chip

■Bipolar Technology

■Package

Die and SSOP-10

■TERMINAL DESCRIPTION

■COORDINATES

No. Symbol

Function

OSC Supply Voltage

Quartz Crystal Connecting terminal 1

Quartz Crystal Connecting terminal 2

Frequency Control

835

V_OSC

XT1

XT2

V_VC

550

140

-80

-435

-635

-395

165

405

635

１

GND

GND=0V

835

F_OUT1Frequency Output 1

F_OUT2Frequency Output 2

-835

unit:[um]

Tunable Filter Terminal 1

Tunable Filter Terminal 2

V_CC=3.3V

V_CC

Starting Point

Chip Size

Chip Thickness

Pad Size

:Die Center

:1.60x2.00[mm]

:260 ±20[um]

:90x90[um]

■BLOCK DIAGRAM

V_CC

V_OSC

HIGH

PASS

FILTER

XT1

BUFFER

AMP

LIMITER

AMP

OSC

XT2

V_VC

_OUT2

_OUT1

OUTPUT

BUFFER

GND

Version 3.6 2003/08/22 ( 1 / 3 )

12 3

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