PL602-21SI-R [MICROCHIP]

IC CLK BUFFER 100MHZ 8SOIC;


型号：	PL602-21SI-R
厂家：	MICROCHIP
描述：	IC CLK BUFFER 100MHZ 8SOIC
文件：	总6页 (文件大小：340K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

PL602-XX

HCSL Compatible Clock Generator for PCI Express

FEATURES

PIN CONFIGURATION

 Input Frequency:

o Fundamental Crystal or Reference Input: 25MHz

 Output Frequency:

XIN

GND

CLK0

CLK1

XOUT

o PL602-21: 100MHz differential outputs.

o PL602-22: 125MHz differential outputs.

o PL602-23: 200MHz differential outputs.

o PL602-26: 25MHz differential outputs.

o PL602-27: 250MHz differential outputs.

o PL602-15: 156.25 MHz differential outputs.

 Very low Jitter: 28ps Pk-Pk typ.

DNC

VDD

SOP-8L

CLK1

CLK0

 Very low Phase Noise:

o -130 dBc at 10kHz offset at 100MHz

 No external loop filter is required

 Power supply range: 2.25V to 3.63V

 Operating temperature range from -40C to 85C

 Available in 6-pin SOT or 8-pin SOP Green/RoHS

compliant package.

GND

FIN

VDD

SOT23-6L

DESCRIPTION

The PL602-XX is the smallest, high performance, lowest power differential output clock IC available for HCSL

timing applications. PL602-XX offers -130dBc at 10kHz offset at 100MHz, with a very low jitter

(2 ps TIE RMS), making it ideal for HCSL applications requiring small size and low power.

BLOCK DIAGRAM

XIN, FIN

XOUT

Phase

Locked

Loop

Xtal

Osc

PIN DESCRIPTION

Pin #

SOT23

Description

Name

Type

SOP

XIN

FIN

Crystal input (SOP package only)

Reference clock input (SOT23 package only)

GND connection

GND

CLK[0:1]

VDD

3,4

1,6

Differential clock outputs [note:CLK0=~CLK1]

VDD connection

DNC

Do not connect

Output enable (OE) input. Internal 60KΩ pull up resistor.

XOUT

Crystal output pin.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 02/08/11 Page 1

PL602-XX

HCSL Compatible Clock Generator for PCI Express

ELECTRICAL SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

PARAMETERS

SYMBOL

MIN.

MAX.

UNITS

Supply Voltage Range

Input Voltage Range

V_DD

V_I

-0.5

4.6

V_DD+0.5

260

Output Voltage Range

Soldering Temperature

Storage Temperature

V_O

C

T_S

-65

-40

150

Ambient Operating Temperature*

+85

Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device

and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above

the operational limits noted in this specification is not implied. *Operating temperature is guaranteed by design. Parts are tested to commercial grade only.

AC SPECIFICATIONS

PARAMETERS

CONDITIONS

Fundamental Crystal

MIN.

TYP.

MAX.

UNITS

Crystal Input Frequency

Input (F_IN) Frequency

MHz

Vpp

Input (F_IN) Signal Amplitude Internally AC coupled

Output Frequency

0.9

V_DD

200

MHz

OE Function; Ta=25º C, Add one clock

period to this measurement for a usable

Output Enable Time

clock output.

Output Disable Time

Settling Time

OE Function; Ta=25º C

At power-up (V_DD> 2.25V)

Frequency vs. V_DD, ±10%

10/90%V_OH

ppm

VDD Sensitivity

-2

Output Rise Time

Output Fall Time

Skew Between Outputs

Duty Cycle

0.3

0.5

250

90/10%V_OH

Measured at 50% V_OH

At V_DD/2

Period Jitter, peak-to-peak

Cycle-to-Cycle, RMS

Cycle-to-Cycle, peak

TIE, RMS

- With capacitive decoupling between V_DD

and GND

- At 100MHz

- 20,000 samples measured

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 02/08/11 Page 2

PL602-XX

HCSL Compatible Clock Generator for PCI Express

DC SPECIFICATIONS

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Supply Current, Dynamic

Operating Voltage

Output Low Voltage

Output High Voltage

Output Current

I_DD

V_DD

V_OL

V_OH

I_OSD

At 100MHz, No Load

2.25

3.63

0.05

0.85

HCSL termination,

(RS = 150Ω, RT = 49.9Ω) 3.3V

(RS = 100Ω, RT = 49.9Ω) 2.5V

0.65

0.75

CRYSTAL SPECIFICATIONS

PARAMETERS

SYMBOL

MIN.

TYP.

MAX.

UNITS

Fundamental Crystal Resonator Frequency

Crystal Loading Rating

F_XIN

MHz

C_{L (xtal)}

Maximum Sustainable Drive Level

Operating Drive Level

500

W

100

Crystal Shunt Capacitance

Effective Series Resistance, Fundamental

ESR

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 02/08/11 Page 3

PL602-XX

HCSL Compatible Clock Generator for PCI Express

PCI EXPRESS/HCSL COMPATIBLE LAYOUT GUIDELINES

Figure 1 below describes how to terminate the complementary LVCMOS outputs of PL602-XX for use with HCSL

inputs.

LVCMOS Output

50 Ohm line

Input

Complementary

LVCMOS Output

Complementary

Input

50 Ohm line

HCSL

0.75V

3.3V

Component Selection

Notes:

Place Rs as close to the LVCMOS outputs as possible.

Place Rt as close to the HCSL inputs as possible.

For 3.3V Operation For 2.5V Operation

Rs = 150 Ohm

Rt = 50 Ohm

Rs = 100 Ohm

Rt = 50 Ohm

Figure 1

PCB LAYOUT CONSIDERATIONS FOR PERFORMANCE OPTIMIZATION

The following guidelines are to assist you with a performance optimized PCB design:

- Keep all the PCB traces to PL602-XX as short as

possible, as well as keeping all other traces as far away

from it as possible.

- Place the crystal as close as possible to both crystal

pins of the device. This will reduce the cross-talk

between the crystal and the other signals.

- Separate crystal pin traces from the other signals on the

PCB, but allow ample distance between the two crystal

pin traces.

- Place a 0.01µF~0.1µF decoupling capacitor between

VDD and GND, on the component side of the PCB,

close to the VDD pin. It is not recommended to place

this component on the backside of the PCB.

- It is highly recommended to keep the VDD and GND

traces as short as possible.

- When connecting long traces (> 1 inch) to a CMOS

output, it is important to design the traces as a

transmission line or ‘stripline’, to avoid reflections or

ringing. In this case, the CMOS output needs to be

matched to the trace impedance. Usually ‘striplines’ are

designed for 50Ω impedance and CMOS outputs

usually have lower than 50Ω impedance so matching

can be achieved by adding a resistor in series with the

CMOS output pin to the ‘stripline’ trace.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 02/08/11 Page 4

PL602-XX

HCSL Compatible Clock Generator for PCI Express

PACKAGE DRAWINGS (GREEN PACKAGE COMPLIANT)

SOP-8L

Dimension in MM

Symbol

Min.

1.35

0.10

1.25

0.33

0.19

4.80

3.80

5.80

0.40

Max.

1.75

0.25

1.50

0.53

0.27

5.00

4.00

6.20

0.89

1.27 BSC

SOT23-6L

Dimension in MM

Symbol

Min.

1.05

0.05

1.00

0.30

0.08

2.80

1.50

2.60

0.35

Max.

1.35

0.15

1.20

0.50

0.20

3.00

1.70

3.0

0.55

0.95 BSC

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 02/08/11 Page 5

PL602-XX

HCSL Compatible Clock Generator for PCI Express

ORDERING INFORMATION (GREEN PACKAGE COMPLIANT)

For part ordering, please contact our Sales Department:

2180 Fortune Drive, San Jose, CA 95131, USA

Tel: (408) 944-0800 Fax: (408) 474-1000

PART NUMBER

The order number for this device is a combination of the following:

Part number, Package type and Operating temperature range

PL602-XX X X - X

Shipping Option

None=Tube

R=Tape & Reel

Part Number

Frequency

Designator

21 = 100MHz

22 = 125MHz

23 = 200MHz

25 = 156.25MHz

26 = 25MHz

27 = 250MHz

15 = 156.25

Temperature

C=Commercial (0°C to 70°C)

I=Industrial (-40°C to 85°C)

Package Type

S=SOP-8L

T=SOT23-6L

Part / Order Number

Marking

Package Option

P602-2X

LLLLL

PL602-2XSC

8-Pin SOP (Tube)

PL602-2XSC-R

8-Pin SOP (Tape and Reel)

F1X

LLL

PL602-1XTC-R

PL602-2XTC-R

6-Pin SOT-23 (Tape and Reel)

F2X

LLL

Note: LLL / LLLLL designate Production Lot.

Micrel Inc., reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Micrel is believed to be accurate

and reliable. However, Micrel makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever

nature resulting from the use of, or reliance upon this product.

LIFE SUPPORT POLICY: Micrel’s products are not authorized for use as critical components in life support devices or systems without the express

written approval of the President of Micrel Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 02/08/11 Page 6

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