SY100EL14VZGTR [MICREL]

5V/3.3V 1:5 CLOCK DISTRIBUTION; 5V / 3.3V 1 ： 5时钟分配


型号：	SY100EL14VZGTR
厂家：	MICREL SEMICONDUCTOR
描述：	5V/3.3V 1:5 CLOCK DISTRIBUTION 5V / 3.3V 1 ： 5时钟分配时钟驱动器逻辑集成电路光电二极管
文件：	总5页 (文件大小：61K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Precision Edge^®

Micrel, Inc.

SY100EL14V

5V/3.3V 1:5 CLOCK

DISTRIBUTION

Precision Edge

SY100EL14V

FEATURES

■ 3.3V and 5V power supply options

■ Typical 30ps output-to-output skew

■ Max. 50ps output-to-output skew

■ Synchronous enable/disable

Precision Edge

DESCRIPTION

■ Multiplexed clock input

The SY100EL14V is a low skew 1:5 clock distribution

chip designed explicitly for low skew clock distribution

applications. The device can be driven by either a

differential or single-ended ECL or, if positive power

supplies are used, PECL input signal. The EL14V is

suitable for operation in systems operating from 3.3V to

5.0V supplies. If a single-ended input is to be used the

VBB output should be connected to the CLK input and

bypassed to ground via a 0.01µF capacitor. The VBB

output is designed to act as the switching reference for

the input of the EL14V under single-ended input

conditions, as a result this pin can only source/sink up to

0.5mA of current.

■ 75KΩ internal input pull-down resistors

■ Available in 20-pin SOIC package

The EL14V features a multiplexed clock input to allow

for the distribution of a lower speed scan or test clock

along with the high speed system clock. When LOW (or

left open and pulled LOW by the input pull-down resistor)

the SEL pin will select the differential clock input.

The common enable (EN) is synchronous so that the

outputs will only be enabled/disabled when they are

already in the LOW state. This avoids any chance of

generating a runt clock pulse when the device is enabled/

disabled as can happen with an asynchronous control.

The internal flip flop is clocked on the falling edge of the

input clock, therefore all associated specification limits

are referenced to the negative edge of the clock input.

When both differential inputs are left open, CLK input

will pull down to VEE and CLK input will bias around

VCC/2.

Precision Edge is a registered trademark of Micrel, Inc.

Rev.: D

Amendment:/0

M9999-031006

hbwhelp@micrel.com or (408) 955-1690

Issue Date: March 2006

Precision Edge^®

SY100EL14V

Micrel, Inc.

(1)

PACKAGE/ORDERING INFORMATION

Package

Type

Operating

Range

Package

Marking

Lead

Part Number

Finish

SY100EL14VZC

Z20-1

Commercial

Industrial

SY100EL14VZC

SY100EL14VZI

Sn-Pb

SY100EL14VZCTR⁽²⁾

SY100EL14VZI

SY100EL14VZITR⁽²⁾

SY100EL14VZG⁽³⁾

Industrial

SY100EL14VZG with

Pb-Free bar-line indicator

Pb-Free

NiPdAu

SY100EL14VZGTR^{(2, 3)}

Z20-1

Industrial

SY100EL14VZG with

Pb-Free bar-line indicator

Pb-Free

NiPdAu

Notes:

1. Contact factory for die availability. Dice are guaranteed at T = 25°C, DC Electricals only.

2. Tape and Reel.

3. Pb-Free package is recommended for new designs.

20-Pin Narrow SOIC

TOP VIEW

PIN NAMES

TRUTH TABLE

CLK

SCLK

Function

Differential Clock Inputs

Scan Clock Input

CLK

SCLK

SEL

Synchronous Enable

Clock Select Input

SEL

VBB

L⁽¹⁾

Reference Output

Q0-4

Differential Clock Outputs

Note:

1. On next negative transition of CLK or SCLK

M9999-031006

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY100EL14V

Micrel, Inc.

(1)

ABSOLUTE MAXIMUM RATINGS

Symbol

Rating

Value

Unit

VDC

V_EE

Power Supply (V_CC= 0V)

Input Voltage (V_CC= 0V)

–8.0 to 0

0 to -6.0

(3)

V_IN

I_OUT

Output Current

–Continuous

–Surge

100

T_LEAD

T_A

Lead Temperature (soldering, 20sec.)

Operating Temperature Range

Operating Range^(1),(2)

+260

°C

–40 to +85

–5.7 to -3.0

V_EE

Notes:

1. Absolute maximum rating, beyond which, device life may be impaired, unless otherwise specified on an individual data sheet.

2. Parametric values specified at: 100EL14V Series: –3.0V to –5.5V.

3. In PECL mode operation, V (max) = V

DC ELECTRICAL CHARACTERISTICS

(1)

VEE = VEE (Min) to VEE (Max); VCC = GND

TA = –40°C

TA = 0°C

TA = +25°C

TA = +85°C

Symbol

VOH

VOL

Parameter

Output HIGH Voltage⁽²⁾-1085 -1005 -880 -1025 -955 -880 -1025 -955 -880 -1025 -955 -880 mV

Output LOW Voltage⁽²⁾

-1830 -1695 -1555 -1810 -1705 -1620 -1810 -1705 -1620 -1810 -1705 -1620 mV

Output HIGH Voltage⁽²⁾-1095

Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit

VOHA

VOLA

VIH

—

-1035

—

-1035

—

-1035

—

Output LOW Voltage⁽²⁾

Input HIGH Voltage

Input LOW Voltage

Input LOW Current⁽³⁾

—

-1555

-1610

-1610 mV

-880 mV

-1475 mV

-1165

-1810

0.5

-880 -1165

-1475 -1810

-880 -1165

-1475 -1810

-880 -1165

-1475 -1810

VIL

IIL

—

0.5

—

0.5

—

0.5

—

µA

CLK -300

-300

IIH

Input High Current

—

150

—

150

—

150

—

150

µA

IEE

VBB

Power Supply Current

—

Output Reference

Voltage

-1.38

-1.26 -1.38

-1.26

Notes:

1. This table replaces the three traditionally seen in ECL 100K data books. The same DC parameter values at VEE = -4.5V now apply across the full VEE

range of -3.0V to -5.5V. Outputs are terminated through a 50Ω resistor to -2.0V except where otherwise specified on the individual data sheets.

2. VIN = VIH(Max) or VIL(Min).

3. VIN = VIL(Max).

M9999-031006

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY100EL14V

Micrel, Inc.

AC ELECTRICAL CHARACTERISTICS

VEE = VEE (Min) to VEE (Max); VCC = GND

TA = –40°C

TA = 0°C

TA = +25°C

TA = +85°C

Symbol

Parameter

Min.

Max.

Min.

Max.

Min.

Typ.

Max.

Min.

Max.

Unit

tPLH

tPHL

Propagation Delay

CLK to Q (Diff)

CLK to Q (SE)

SCLK to Q

520

470

720

770

550

500

750

800

580

530

680

780

830

630

580

830

880

tskew

Part-to-Part Skew⁽¹⁾

Within-Device Skew

—

200

—

200

—

200

—

200

Setup Time EN

Hold Time EN

150

200

150

—

150

200

150

—

150

200

150

—

150

200

150

—

VPP

Minimum Input

Swing

CLK

VCMR

Common Mode Range⁽²⁾

VPP < 500mV

VPP ≥ 500mV

-2.0

-1.8

-0.4

-2.1

-1.9

-0.4

-2.1

-1.9

—

-0.4

-2.1

-1.9

-0.4

Output Rise/Fall Times

Q (20% – 80%)

230

500

230

500

230

360

500

230

500

Notes:

1. Skews are specified for identical LOW-to-HIGH or HIGH-to-LOW transitions.

2. TheVCMR rangeisreferencedtothemostpositivesideofthedifferentialinputsignal. NormaloperationisobtainediftheHIGHlevelfallswithinthespecified

range and the peak-to-peak voltage lies between VPP(Min) and 1V. The lower end of the VCMR range varies 1:1 with VEE. The numbers in the specification

table assume a nominal VEE = -3.3V. For PECL operation, the VCMR(Min) will be fixed at 3.3V – |VCMR(Min)|.

M9999-031006

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY100EL14V

Micrel, Inc.

20-PIN SOIC .300" WIDE (Z20-1)

Rev. 03

MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA

TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com

The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.

Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.

Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can

reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into

the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s

use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify

Micrel for any damages resulting from such use or sale.

M9999-031006

hbwhelp@micrel.com or (408) 955-1690

SY100EL14VZGTR [MICREL]

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