SD-A2D4LAG-FREQ [NEL]

LVDS UHF CLOCK (XO); LVDS的超高频时钟（XO）


型号：	SD-A2D4LAG-FREQ
厂家：	NEL FREQUENCY CONTROLS,INC
描述：	LVDS UHF CLOCK (XO) LVDS的超高频时钟（XO）石英晶振时钟
文件：	总3页 (文件大小：355K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Data Sheet 0629B

CRYSTAL CLOCK OSCILLATORS

Rev. -

LVDS UHF CLOCK (XO)

SD-A2D4XXX Series

Description

The SD-A2D4XXX Series of quartz crystal oscillators provides ultra high frequency with LVDS

complementary outputs. The outputs can be Tri-stated for test automation or combining multiple clocks. The

device is based on advanced PLL multiplication for higher frequencies, and packaged in a miniature, low

profile leadless ceramic SMD package with 6 gold plated pads.

Applications and Features

• Wide frequency range – 38.0MHz to 640.000MHz

• Fiber Channel; 10 GbE; Infiniband; Network Processors; SOHO Routing

• High Reliability - NEL HALT/HASS qualified for crystal oscillator start-up conditions

• Low Phase Noise, Low Jitter

• High shock resistance, to 1000g

• Ultra High Frequency

• Tight frequency stability - ±20 ppm overall available

• Grounded lid and internal by-pass capacitor reduce EMI

• RoHS Compliant, Lead Free Construction

Creating a Part Number

SD - A 2D4 X X X - FREQ

Package Code

Overall Frequency Stability, ppm

SD 6 pad 5x7mm SMD

E ±20

F ±25

Input Voltage

G ±50

3.3V±5%

H ±100

9 Customer specific

Enable Option

Temperature Range, °C

Enable High

0 to 50

Enable Low

0 to 70

-20 to 70

-40 to 85

Customer specific

357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881

Email: nelsales@nelfc.com www.nelfc.com

Data Sheet 0629B

CRYSTAL CLOCK OSCILLATORS

Rev. -

SD-A2D4XXX Series Continued

LVDS UHF CLOCK (XO)

Absolute Maximum Ratings

Parameter

Operating Temperature Range

Storage Temperature Range

Supply Voltage

Symbol

Value

Unit

ºC

-40 to +85

-50 to +90

-0.5 to 4.5

0 to Vcc

Tst

Vcc

Enable/Disable Voltage

Ven/dis

Electrical Parameters

Parameter

Nominal Frequency

Supply Voltage

Symb

Conditions, Note

Code A

MIN

TYP

MAX

640

3.465

Unit

MHz

Vcc

3.135

3.3

Supply current

Output Logic Type

Load

Icc

LVDS

100

110

At receiving end

Ohm

between the outputs

Differential amplitude

Amplitude error

Output Levels

Vod

Vof

247

330

1.25

454

Offset Voltage

1.125

45/55

1.375

Offset Voltage error

At outputs crossing,

room temperature

20 to 80, 80 to 20 %

Integrated from Phase

Noise, 12 KHz to 20

MHz , RMS

Duty Cycle (Symmetry)

Rise/Fall Time

50/50

55/45

Tr/Tf

0.5

0.4

0.7

Integrated

Jitter

Wavecrest

Random

period,

155 MHz

622 MHz

3.5

characterized

Accumul., 155 MHz

pk-to-pk

155 MHz @ 10 Hz

@100 Hz

622 MHz

dBc/Hz

Phase Noise

£(∆f)

∆F/F

-60

-90

-120

-130

-128

-144

-150

@1 KHz

@10KHz

@100KHz

@1MHz

@>10M

ppm

Frequency Stability

Overall, including

initial calibration,

temperature, aging 10

years, shock and

vibration

See “Creating a Part Number”

Not all combinations available,

consult factory

Enable High Option

Pin 2 Enabled

CMOS logic 1 or N/C

CMOS logic 0

0.7 Vcc

Vcc

Pin 2 Disabled

0.3 Vcc

Enable Low Option

Pin 2 Disabled

Pin 2 Enabled

CMOS logic 1 or N/C

CMOS logic 0

0.7 Vcc

Vcc

0.3 Vcc

357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881

Email: nelsales@nelfc.com www.nelfc.com

CRYSTAL CLOCK OSCILLATORS

Rev. -

SD-A2D4XXX Series

Continued

LVDS UHF CLOCK (XO)

Electrical Connection

Connection

Enable/Disable

N.C.

V_EE/Ground

Output

/Output

V_CC

Environmental and Mechanical Characteristics

Operating temp.

range

see part # table

Mechanical Shock

Thermal Shock

Vibration

Hermetic Seal

Soldering conditions

Per MIL-STD-202, Method 213, Cond. E

Per MIL-STD-883, Method 1011, Cond. A

Per MIL-STD-883, Method 2007, Cond. A

-8

Leak rate less than 1x10 atm.cc/s of helium

See MAX reflow profile below

Maximum Reflow Profile

357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881

Email: nelsales@nelfc.com www.nelfc.com

相关型号：