ICS2305MI-1LFT [ICSI]

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER; 3.3伏零延迟，低偏移缓冲器


型号：	ICS2305MI-1LFT
厂家：	INTEGRATED CIRCUIT SOLUTION INC
描述：	3.3 VOLT ZERO DELAY, LOW SKEW BUFFER 3.3伏零延迟，低偏移缓冲器
文件：	总8页 (文件大小：162K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ICS2305

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER

Description

Features

The ICS2305 is a low phase noise, high-speed PLL

based, low-skew zero delay buffer. Based on ICS’

proprietary low jitter Phase Locked Loop (PLL)

techniques, the device provides four low skew outputs

at speeds up to 133 MHz at 3.3 V. The outputs can be

generated from the PLL (for zero delay), or directly

from the input (for testing), and can be set to tri-state

mode or to stop at a low level. The PLL feedback is

on-chip and is obtained from the CLKOUT pad.

• Clock outputs from 10 to 133 MHz

• Zero input-output delay

• Four low skew (<250 ps) outputs

• Device-to-device skew <700 ps

• Full CMOS outputs with 25 mA output drive

capability at TTL levels

• 5 V tolerant CLKIN

• Tri-state mode for board-level testing

• Advanced, low power, sub-micron CMOS process

• Operating voltage of 3.3 V

The ICS2305 is available in two different versions. The

ICS2305-1 is the base part. The ICS2305-1H is a high

drive version with faster rise and fall times.

• Industrial temperature range available

• Packaged in 8-pin SOIC

• Available in Pb (lead ) free package

Block Diagram

VDD

PLL

CLKOUT

CLK1

CLKIN

CLK2

CLK3

CLK4

GND

MDS 2305 D

Revision 022505

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

ICS2305

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER

Pin Assignment

CLKIN

CLK2

CLK1

GND

CLKOUT

CLK4

VDD

CLK3

( 150mil ) SOIC

8 pin

Pin Descriptions

Pin Type

Pin Description

Number

Name

CLKIN

CLK2

CLK1

Input

Clock input (5 V tolerant).

Output Buffered Clock output 2.

Power

Buffered Clock output 1

Connect to ground.

GND

CLK3

VDD

Output Buffered Clock output 3

Power

Power supply. Connect to 3.3 V.

CLK4

CLKOUT

Output Buffered Clock output 4.

Output Buffered output. Internall feedback on this pin.

MDS 2305 D

Revision 022505

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

ICS2305

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER

External Components

The ICS2305 requires a minimum number of external components for proper operation. Decoupling

capacitors of 0.01 mF should be connected between VDD and GND on pins 4 and 5, and VDD and GND

on pins 13 and 12, as close to the device as possible. A series termination resistor of 33Ω may be used to

each clock output pin to reduce reflections.

Absolute Maximum Ratings

Stresses above the ratings listed below can cause permanent damage to the ICS2305. These ratings,

which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of

the device at these or any other conditions above those indicated in the operational sections of the

specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can

affect product reliability. Electrical parameters are guaranteed only over the recommended operating

temperature range.

Item

Rating

Supply Voltage, VDD

All Inputs and Outputs

CLKIN and FBIN inputs

7 V

-0.5 V to VDD+0.5 V

-0.5 V to 5.5 V

2000 V

Electrostatic Discharge (HBM)

Ambient Operating Temperature (Commercial)

Ambient Operating Temperature (Industrial)

Storage Temperature

0 to +70°C

-40 to +85°C

-65 to +150°C

150°C

Junction Temperature

Soldering Temperature

260°C

Recommended Operation Conditions

Parameter

Min.

Typ.

Max.

+85

Units

°C

Ambient Operating Temperature (Industrial)

Ambient Operating Temperature (Commercial)

Power Supply Voltage (measured in respect to GND)

-40

+70

°C

+3.0

+3.6

MDS 2305 D

Revision 022505

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

ICS2305

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER

DC Electrical Characteristics

ICS2305M-XX, VDD = 3.3 V ±10%, Ambient Temperature -40 to +85°C(Industrial), (0-70°C Commercial)

Parameter

Operating Voltage

Input High Voltage

Input Low Voltage

Input Low Current

Input High Current

Output High Voltage

Output Low Voltage

Operating Supply Current

Symbol

Conditions

Min.

3.0

Typ.

Max. Units

VDD

3.6

0.8

VIN = 0V

VIN = VDD

µA

100

= -12 mA

= 12 mA

2.4

0.4

IDD

No Load

µA

Power Down Supply

Current

CLKIN = 0, Note 1

Short Circuit Current

Input Capacitance

Each output

CLKIN

±50

Note 1: When there is no clock signal present at CLKIN, the ICS2305 will enter power down mode. The

PLL is stopped and the outputs are tri-state.

AC Electrical Characteristics

ICS2305M-1, VDD=3.3 V ±10%, Ambient temperature -40 to +85°C(Industrial), (0-70°C Commercial)

Parameter

Symbol

Conditions

Min. Typ. Max. Units

Output Clock Frequency

Output Rise Time

10 pF load

133

100

2.5

MHz

30 pF load

0.8 to 2.0 V, outputs loaded

2.0 to 0.8 V, outputs loaded

Output Fall Time

Output Clock Duty Cycle

measured at 1.4V, Fout=66.67

MHz

Output Clock Duty Cycle

measured at 1.4V, Fout=50

MHz

Device to Device Skew

Output to Output Skew

Input to Output Skew

Cycle to Cycle Jitter

rising edges at VDD/2

700

250

±350

200

measured at 66.67M, outputs

loaded

PLL Lock Time

Note 2

1.0

Note 2: With VDD at a steady rate and valid input at CLKIN.

MDS 2305 D

Revision 022505

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

ICS2305

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER

ICS2305M-1H, VDD=3.3 V ±10%, Ambient temperature -40 to +85°C(Industrial), (0-70°C Commercial),

Parameter

Symbol

Conditions

Min. Typ. Max. Units

Output Clock Frequency

Output Rise Time

10 pF load

133

100

1.5

MHz

30 pF load

0.8 to 2.0 V, outputs loaded

2.0 to 0.8 V, outputs loaded

Output Fall Time

Output Clock Duty Cycle

measured at 1.4V, Fout=66.67

MHz

Output Clock Duty Cycle

measured at 1.4V, Fout=50

MHz

Device to Device Skew

Output to Output Skew

Input to Output Skew

Cycle to Cycle Jitter

rising edges at VDD/2

700

250

±350

200

measured at 66.67M, outputs

loaded

PLL Lock Time

Note 3

1.0

Note 3: With VDD at a steady rate and valid input at CLKIN

Thermal Characteristics

Parameter

Symbol

Conditions

Min.

Typ. Max. Units

Thermal Resistance Junction to

Ambient

Still air

120

115

105

°C/W

1 m/s air flow

3 m/s air flow

Thermal Resistance Junction to Case

MDS 2305 D

Revision 022505

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

ICS2305

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER

Package Outline and Package Dimensions (8-pin SOIC, 150 Mil. Narrow Body)

Package dimensions are kept current with JEDEC Publication No. 95

Millimeters

Inches

Symbol

Min

Max

1.75

0.25

0.51

0.25

5.00

4.00

Min

Max

1.35

0.10

0.33

0.19

4.80

3.80

.0532

.0040

.013

.0075

.1890

.1497

.0688

.0098

.020

.0098

.1968

.1574

INDEX

AREA

1.27 BASIC

0.050 BASIC

5.80

0.25

0.40

0°

6.20

0.50

1.27

8°

.2284

.010

.016

0°

.2440

.020

.050

8°

h x 45

- C -

SEATING

PLANE

.10 (.004)

MDS 2305 D

Revision 022505

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

ICS2305

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER

Ordering Information

Part / Order Number

ICS2305MI-1

Marking

2305MI-1

Shipping Packaging

Tubes

Package

8-pin SOIC

Temperature

-40 to +85° C

0 to +70° C

ICS2305MI-1T

Tape and Reel

Tubes

ICS2305MI-1H

ICS2305MI-1HT

ICS2305MI-1LF

ICS2305MI-1LFT

ICS2305MI-1HLF

ICS2305MI-1HLFT

ICS2305M-1

2305MI1H

2305MI1L

2305I1HL

2305M-1

Tape and Reel

Tubes

Tape and Reel

Tubes

Tape and Reel

Tubes

ICS2305M-1T

2305M-1

Tape and Reel

Tubes

ICS2305M-1H

2305M-1H

2305M1LF

2305M1HL

ICS2305M-1HT

ICS2305M-1LF

ICS2305M-1LFT

ICS2305M-1HLF

ICS2305M-1HLFT

Tape and Reel

Tubes

Tape and Reel

Tubes

Tape and Reel

“LF” denotes Pb (lead free) package.

While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no

responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other

circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as

those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without

additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant

any ICS product for use in life support devices or critical medical instruments.

MDS 2305 D

Revision 022505

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

ICS2305

3.3 VOLT ZERO DELAY, LOW SKEW BUFFER

Revision History

Rev. Originator

Date

Description of Change

P. Griffith

12/01/04 New device/datasheet; Preliminary.

12/27/04 Made corrections to IDD, IDDP, input capacitance, duty cycle and jitter specs/test

conditions. Removed reference to table 2 in output clock frequency test conditions.

Removed abslolute and cycle-to-cycle jitter specs for 15 pF load. Added duty cycle spec

for Fout=50 MHz. Release from Preliminary to Final.

P. Griffith

J. Sarma

1/25/05 Made corrections to test conditions of output rise time, fall-time, duty cycle and

cycle-to-cycle jitter.

2/25/05 Added LF packing info.

MDS 2305 D

Revision 022505

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

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