DSA557-0344FL0 [MICROCHIP]

Processor Specific Clock Generator;


型号：	DSA557-0344FL0
厂家：	MICROCHIP
描述：	Processor Specific Clock Generator
文件：	总18页 (文件大小：884K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

DSA557-03/04/05

Multiple Output MEMS PCIe Gen1/2/3/4 Clocks for Automotive

Features

General Description

• Automotive AEC-Q100 Qualified

• Complies with PCIe Gen1/2/3/4

The DSA557 series of high performance PCI Express

clock generators use

a proven silicon MEMS

technology to provide 100 MHz differential output

clocks with excellent jitter and stability over a wide

range of supply voltages and temperatures. By

eliminating the need for quartz or SAW technology,

MEMS oscillators significantly enhance reliability and

accelerate product development, while meeting

stringent clock performance criteria for a variety of

communications, storage, and networking applications.

• Integrated MEMS Resonator Eliminates the Need

for External 25 MHz Crystal

• Wide Temperature Range:

- Automotive Grade 2: –40°C to +105°C

- Automotive Grade 3: –40°C to +85°C

• 100 MHz HCSL/LVDS/LVPECL/LVCMOS Options

Available

• Small Footprints:

The DSA557-03/04/05 have two, three, and four

100 MHz outputs, respectively. All have output

enable/disable features.

- 14-Lead QFN (DSA557-03, Two Outputs)

- 20-Lead VQFN (DSA557-04, Three Outputs;

DSA557-05, Four Outputs)

The DSA557-03 is available in a space-saving 14-lead

QFN package. The DSA557-04 and DSA557-05 are

available in a 20-lead VQFN.

• Excellent Shock and Vibration Immunity

- Qualified to MIL-STD-883

Additional output formats are available in any

combination of LVPECL, LVDS, and HCSL.

• High Reliability

- 20x Better MTF than Quartz Oscillators

• Low Current Consumption: 30% Lower than

Competing Devices

• Supply Range of 2.25V to 3.63V

• Lead-Free and RoHS Compliant

Applications

• Automotive Infotainment

• Automotive ADAS

• Autonomous Driving

• In-Vehicle Network

Benefits

• Replace High Temperature Crystals and Quartz

Oscillators

 2019 Microchip Technology Inc.

DS20006175A-page 1

DSA557-03/04/05

Package Types

DSA557-05

20-Lead VQFN

(Top View)

DSA557-04

20-Lead VQFN

(Top View)

DSA557-03

14-Lead QFN

(Top View)

20 19 18 17 16 15

14 13 12

OE1

VSS

CLK0+

CLK0-

CLK1-

CLK1+

VSS

OE2

VSS

Block Diagrams

DSA557-04

DSA557-03

CLK0+

CLK0-

Control Circuitry

Output

CLK0+

CLK0-

CLK1+

CLK1-

Control

and

Output

Control

and

MEMS

PLLs

MEMS

PLL

Divider

OE1

OE2

CLK2-

CLK2+

CLK1-

CLK1+

DSA557-05

Note:

CLK0+/–, CLK1+/–, CLK2+/–, and CLK3+/–

are 100 MHz, per PCIe standards.

DS20006175A-page 2

 2019 Microchip Technology Inc.

DSA557-03/04/05

1.0

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings †

Input Voltage .................................................................................................................................... –0.3V to V_DD+ 0.3V

Supply Voltage .......................................................................................................................................... –0.3V to +4.0V

ESD Protection on All Pins (HBM) .............................................................................................................................4 kV

ESD Protection on All Pins (CDM) ..........................................................................................................................1.5 kV

† Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of the device at those or any other conditions above those indicated

in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended

periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

Electrical Characteristics: Unless otherwise specified, T = +25°C, V_DD= 3.3V.

Parameter

Symbol

Min.

Typ.

Max.

Units Conditions

Supply Voltage

V_DD

2.25

—

3.63

Note 1

EN pin low, output disabled

EN pin high, output enabled

EN pin low, output disabled

EN pin high, output enabled

EN pin low, output disabled

EN pin high, output enabled

Supply Current, DSA557-03

Supply Current, DSA557-04

Supply Current, DSA557-05

I_DD

—

100

—

120

—

Frequency Stability (including

frequency variations due to

initial tolerance, temp., and

power supply voltage)

—

±100

Δf

ppm

All temperature ranges

—

±50

Aging - 1st Year

Δf

—

±5

ppm

±1 ppm each subsequent year

T = +25°C

Startup Time (Note 2)

Input Logic Levels

t_SU

0.75 x

V_DD

Input Logic High

Input Logic Low

V_IH

V_IL

—

0.25 x

V_DD

—

Output Disable Time (Note 3)

Output Enable Time

t_DS

t_EN

—

Enable Pull-Up Resistor

(Note 4)

—

kΩ

Internally pulled up

HCSL Outputs (Note 5)

Output Logic High

V_OH

V_OL

—

0.725

—

0.1

—

R_L= 50Ω

Output Logic Low

R_L= 50Ω

Peak-to-Peak Output Swing

—

750

Single-Ended

Output Transition Time

(Note 6)

t_r/t_f

200

—

400

20% to 80%, R_L= 50Ω, C_L= 2 pF

Differential

Output Duty Cycle

SYM

J_PER

—

Period Jitter (Note 7)

2.5

ps_RMSf₀₁= f₀₂= 100 MHz

 2019 Microchip Technology Inc.

DS20006175A-page 3

DSA557-03/04/05

ELECTRICAL CHARACTERISTICS (CONTINUED)

Electrical Characteristics: Unless otherwise specified, T = +25°C, V_DD= 3.3V.

Parameter

Symbol

Min.

Typ.

Max.

Units Conditions

PCIe Gen 1.1, (Note 8)

T_J= D_J+ 14.069 x R_J(BER 10^-12

T_J

—

ps_PP

ps_RMS

)

PCIe Gen 2.1, 1.5 MHz to Nyquist,

(Note 8)

—

2.20

0.08

3.1

3.0

RMS-CCHF

Jitter, Phase (Common Clock

Architecture)

PCIe Gen 2.1, 10 kHz to 1.5 MHz,

(Note 8)

RMS-CCLF

J_RMS-CC

—

0.37

200

1.0

ps_RMSPCIe Gen 3.0, (Note 8)

fs_RMSPCIe Gen 4.0, 16 GHz

500

PCIe Gen 2.1, 1.5 MHz to Nyquist,

(Note 8)

—

2.15

4.0

ps_RMS

RMS-DCHF

Integrated Phase Noise (Data

Clock Architecture)

PCIe Gen 2.1, 10 kHz to 1.5 MHz,

(Note 8)

—

0.06

0.32

7.5

1.0

RMS-DCLF

J_RMS-DC

ps_RMSPCIe Gen 3.0, (Note 8)

Note 1: Each pin V_DDshould be filtered with a 0.1 μF capacitor.

2: _SUis time to 100 ppm of output frequency after V_DDis applied and outputs are enabled.

3: Output Waveform and Test Circuit figures define the parameters.

4: Output is enabled if pad is floated or not connected.

5: Contact Microchip for alternate output options (LVPECL, LVDS, LVCMOS).

6: Output Waveform and Connection Diagram define the parameters.

7: Period Jitter includes crosstalk from adjacent output.

8: Jitter limits established by Gen 1.1, Gen 2.1, Gen 3.0, and Gen 4.0 PCIe standards.

TEMPERATURE SPECIFICATIONS

Parameters

Temperature Ranges

Sym.

Min.

Typ.

Max.

Units

Conditions

–40

—

+85

+105

+150

—

°C

Ordering Option I

Operating Temperature Range

T_A

Ordering Option L

Junction Operating Temperature

Storage Temperature Range

Lead Temperature

T_J

T_S

—

–55

—

+260

Soldering, 40s

DS20006175A-page 4

 2019 Microchip Technology Inc.

DSA557-03/04/05

2.0

PIN DESCRIPTIONS AND CONNECTION DIAGRAMS

The descriptions of the pins are listed in Table 2-1, Table 2-2, and Table 2-3.

TABLE 2-1:

Pin Number

DSA557-03 QFN-14 PIN FUNCTION TABLE

Pin Name Pin Type

Description

Output enable, active-high.

N/A

Ground recommended or leave as a NC.

Ground.

VSS

N/A

Ground recommended or leave as a NC.

True output of differential pair.

CLK1+

CLK1–

CLK0–

CLK0+

VDD1

VDD0

Complement output of differential pair.

True output of differential pair.

Power supply for core and output 1 (CLK1+/CLK1–)

Power supply for output 0 (CLK0+/CLK0–)

Ground recommended or leave as a NC.

N/A

VDD

0.1μF

14 13 12

CLK0+

CLK0-

Enable

5ꢀȍ

CLK1-

CLK1+

Ropt

Ropt 22Ω – 33Ω optional

5ꢀȍ

FIGURE 2-1:

14-Lead QFN Connection Diagram with Two HCSL Outputs.

 2019 Microchip Technology Inc.

DS20006175A-page 5

DSA557-03/04/05

TABLE 2-2:

Pin Number

DSA557-04 QFN-20 PIN FUNCTION TABLE

Pin Name Pin Type

Description

OE1

N/A

Output enable, active-high. Controls CLK0.

Leave unconnected or grounded.

Ground.

VSS

CLK0–

CLK0+

CLK1–

CLK1+

VDD

Ground.

Complement output of differential pair.

True output of differential pair.

Complement output of differential pair.

True output of differential pair.

Power supply.

N/A

Leave unconnected or grounded.

Output enable, active-high. Controls CLK1 and CLK2.

Leave unconnected or grounded.

Ground.

OE2

N/A

VSS

CLK2–

CLK2+

Ground.

Complement output of differential pair.

True output of differential pair.

Leave unconnected or grounded.

Power supply.

N/A

VDD

N/A

Leave unconnected or grounded.

VDD

0.1μF

CLK2+

CLK2-

5ꢀȍ

20 19 18 17 16 15

CLK1+

CLK1-

CLK0+

CLK0-

Ropt

Enable

5ꢀȍ

5RSWꢁꢂꢂȍꢁ±ꢁꢃꢃȍꢁRSWLRQDO

20-Lead QFN Connection Diagram with Three HCSL Outputs.

FIGURE 2-2:

DS20006175A-page 6

 2019 Microchip Technology Inc.

DSA557-03/04/05

TABLE 2-3:

Pin Number

DSA557-05 QFN-20 PIN FUNCTION TABLE

Pin Name Pin Type

Description

OE1

N/A

Output enable, active-high. Controls CLK0 and CLK3.

Leave unconnected or grounded.

Ground.

VSS

Ground.

CLK0–

CLK0+

CLK1–

CLK1+

VDD

Complement output of differential pair.

True output of differential pair.

Complement output of differential pair.

True output of differential pair.

Power supply.

N/A

Leave unconnected or grounded.

Output enable, active-high. Controls CLK1 and CLK2.

Leave unconnected or grounded.

Ground.

OE2

N/A

VSS

Ground.

CLK2–

CLK2+

CLK3–

CLK3+

VDD

Complement output of differential pair.

True output of differential pair.

Complement output of differential pair.

True output of differential pair.

Power supply.

N/A

Leave unconnected or grounded.

0.1μF

5RSWꢁꢂꢂȍꢁ±ꢁꢃꢃȍ

0.1μF

optional

FIGURE 2-3:

20-Lead QFN Connection Diagram with Four HCSL Outputs.

 2019 Microchip Technology Inc.

DS20006175A-page 7

DSA557-03/04/05

3.0

OUTPUT WAVEFORM

t_R

t_F

Output

80%

50%

20%

Output voltage swing.

Refer to table below.

Output

Enable

t_EN

1/f₀

t_DA

V_IH

V_IL

FIGURE 3-1:

DSA557-03/04/05 Output Waveform.

TABLE 3-1:

OUTPUT VOLTAGE SWING

Specification

V_CM

V_{SWING_SE}(typ.)

LVPECL

LVDS

V_CC– 1.4V

1.2V

830 mV

350 mV

675 mV

HCSL

350 mV

DS20006175A-page 8

 2019 Microchip Technology Inc.

DSA557-03/04/05

4.0

SOLDER REFLOW PROFILE

FIGURE 4-1:

Solder Reflow Profile.

TABLE 4-1:

SOLDER REFLOW

QFN-14 MSL 1 @ 260°C Refer to JSTD-020C

TSSOP-16 MSL 3 @ 260°C Refer to JSTD-020C

Ramp-Up Rate (200°C to Peak Temp.)

Preheat Time 150°C to 200°C

Time Maintained above 217°C

Peak Temperature

3°C/sec. max.

60 to 180 sec.

60 to 150 sec.

255°C to 260°C

20 to 40 sec.

Time within 5°C of Actual Peak

Ramp-Down Rate

6°C/sec. max.

8 minutes max.

Time 25°C to Peak Temperature

 2019 Microchip Technology Inc.

DS20006175A-page 9

DSA557-03/04/05

5.0

5.1

PACKAGING INFORMATION

Package Marking Information

14-Lead QFN*

Example

XXXXXX-XX

DCPYYWW

0SSS

DSA557-03

DCP1936

0943

20-Lead QFN*

Example

XXXXXX-XX

DCPYYWW

0SSS

DSA557-05

DCP1918

0235

Legend: XX...X Product code

Year code (last digit of calendar year)

Year code (last 2 digits of calendar year)

SSS

Week code (week of January 1 is week ‘01’)

Alphanumeric traceability code

Pb-free JEDEC^®designator for Matte Tin (Sn)

This package is Pb-free. The Pb-free JEDEC designator (

can be found on the outer packaging for this package.

)

●, ▲, ▼ Pin one index is identified by a dot, delta up, or delta down (triangle

mark).

Note: In the event the full Microchip part number cannot be marked on one line, it will

be carried over to the next line, thus limiting the number of available

characters for customer-specific information. Package may or may not include

the corporate logo.

Underbar (_) and/or Overbar (‾) symbol may not be to scale.

DS20006175A-page 10

 2019 Microchip Technology Inc.

DSA557-03/04/05

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging.

 2019 Microchip Technology Inc.

DS20006175A-page 11

DSA557-03/04/05

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging.

DS20006175A-page 12

 2019 Microchip Technology Inc.

DSA557-03/04/05

APPENDIX A: REVISION HISTORY

Revision A (April 2019)

• Initial release of DSA557-03/04/05 as Microchip

data sheet DS20006175A.

 2019 Microchip Technology Inc.

DS20006175A-page 13

DSA557-03/04/05

NOTES:

DS20006175A-page 14

 2019 Microchip Technology Inc.

DSA557-03/04/05

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, contact your local Microchip representative or sales office.

Examples:

XXXX

PART NO.

Device

a) DSA557-0344FL0:

Two HCSL Outputs PCIe Clock

Generator for Automotive,

14-Lead QFN, –40°C to +105°C

Temperature Range, ±100 ppm

Stability, 96/Tube

Output

Format

Temperature Stability

Range

Package

Packaging

Option

Device:

DSA557-03: Two Output PCIe Clock Generator for

Automotive

DSA557-04: Three Output PCIe Clock Generator for

Automotive

DSA557-05: Four Output PCIe Clock Generator for

Automotive

b) DSA557-04222KI1T: Three LVPECL Outputs PCIe

Clock Generator for Automotive,

20-Lead QFN, –40°C to +85°C

Temperature Range, ±50 ppm

Stability, 1000/Reel

c) DSA557-053344KL0: Four Output PCIe Clock

Generator for Automotive,

(CLK3/CLK2: LVDS, CLK1/

CLK0: HCSL), 20-Lead QFN,

–40°C to +105°C Temperature

Range, ±100 ppm Stability,

96/Tube

Output Format:

(Note 1)

LVCMOS

LVPECL

LVDS

HCSL

Package:

14-Lead QFN (DSA557-03 Only)

20-Lead QFN (DSA557-04/05 Only)

Note 1:

Tape and Reel identifier only appears in the

catalog part number description. This identifier is

used for ordering purposes and is not printed on

the device package. Check with your Microchip

Sales Office for package availability with the Tape

and Reel option.

Temperature

Range:

–40C to +105C (Automotive Grade 2)

–40C to +85C (Automotive Grade 3)

Stability:

±100 ppm

±50 ppm

Packing Option:

<blank>= 72/Tube (DSA557-04/05)

<blank>= 96/Tube (DSA557-03)

1000/Reel (All Package Options)

Note 1: The Output Format’s arrangement is CLK3 to CLK0 (left-to-right)

and may only have as many digits as that particular part allows. For

example, DSA557-03 has two outputs; the part number example

can only have two digits in that location. DSA557-04 can only have

three and DSA557-05 can only have four.

 2019 Microchip Technology Inc.

DS20006175A-page 15

DSA557-03/04/05

NOTES:

DS20006175A-page 16

 2019 Microchip Technology Inc.

Note the following details of the code protection feature on Microchip devices:

•

Microchip products meet the specification contained in their particular Microchip Data Sheet.

•

Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

•

There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

•

Microchip is willing to work with the customer who is concerned about the integrity of their code.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights unless otherwise stated.

Trademarks

The Microchip name and logo, the Microchip logo, AnyRate, AVR,

AVR logo, AVR Freaks, BitCloud, chipKIT, chipKIT logo,

CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo,

JukeBlox, KeeLoq, Kleer, LANCheck, LINK MD, maXStylus,

maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB,

OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip

Designer, QTouch, SAM-BA, SpyNIC, SST, SST Logo,

SuperFlash, tinyAVR, UNI/O, and XMEGA are registered

trademarks of Microchip Technology Incorporated in the U.S.A.

and other countries.

ClockWorks, The Embedded Control Solutions Company,

EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS,

mTouch, Precision Edge, and Quiet-Wire are registered

trademarks of Microchip Technology Incorporated in the U.S.A.

Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any

Capacitor, AnyIn, AnyOut, BodyCom, CodeGuard,

CryptoAuthentication, CryptoAutomotive, CryptoCompanion,

CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average

Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial

Programming, ICSP, INICnet, Inter-Chip Connectivity,

JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi,

motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB,

MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation,

PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon,

QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O,

SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total

Endurance, TSHARC, USBCheck, VariSense, ViewSpan,

WiperLock, Wireless DNA, and ZENA are trademarks of

Microchip Technology Incorporated in the U.S.A. and other

countries.

SQTP is a service mark of Microchip Technology Incorporated in

the U.S.A.

Microchip received ISO/TS-16949:2009 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona; Gresham, Oregon and design centers in California

and India. The Company’s quality system processes and procedures

are for its PIC^®MCUs and dsPIC^®DSCs, KEELOQ^®code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

Silicon Storage Technology is a registered trademark of Microchip

Technology Inc. in other countries.

GestIC is a registered trademark of Microchip Technology

Germany II GmbH & Co. KG, a subsidiary of Microchip

Technology Inc., in other countries.

All other trademarks mentioned herein are property of their

respective companies.

ISBN: 978-1-5224-4445-9

 2019 Microchip Technology Inc.

DS20006175A-page 17

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China - Wuhan

Tel: 86-27-5980-5300

Thailand - Bangkok

Tel: 66-2-694-1351

Italy - Padova

Tel: 39-049-7625286

Houston, TX

Tel: 281-894-5983

China - Xian

Tel: 86-29-8833-7252

Vietnam - Ho Chi Minh

Tel: 84-28-5448-2100

Netherlands - Drunen

Tel: 31-416-690399

Fax: 31-416-690340

Indianapolis

Noblesville, IN

Tel: 317-773-8323

Fax: 317-773-5453

Tel: 317-536-2380

China - Xiamen

Tel: 86-592-2388138

Norway - Trondheim

Tel: 47-7288-4388

China - Zhuhai

Tel: 86-756-3210040

Poland - Warsaw

Tel: 48-22-3325737

Los Angeles

Mission Viejo, CA

Tel: 949-462-9523

Fax: 949-462-9608

Tel: 951-273-7800

Romania - Bucharest

Tel: 40-21-407-87-50

Spain - Madrid

Tel: 34-91-708-08-90

Fax: 34-91-708-08-91

Raleigh, NC

Tel: 919-844-7510

Sweden - Gothenberg

Tel: 46-31-704-60-40

New York, NY

Tel: 631-435-6000

Sweden - Stockholm

Tel: 46-8-5090-4654

San Jose, CA

Tel: 408-735-9110

Tel: 408-436-4270

UK - Wokingham

Tel: 44-118-921-5800

Fax: 44-118-921-5820

Canada - Toronto

Tel: 905-695-1980

Fax: 905-695-2078

DS20006175A-page 18

 2019 Microchip Technology Inc.

08/15/18

DSA557-0344FL0 [MICROCHIP]

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