SY58013UMITR [MICREL]

6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS and INTERNAL INPUT TERMINATION; 6GHz的， 1 ： 2扇出缓冲器/翻译W / 400mV的LVPECL输出和内部输入终端


型号：	SY58013UMITR
厂家：	MICREL SEMICONDUCTOR
描述：	6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS and INTERNAL INPUT TERMINATION 6GHz的， 1 ： 2扇出缓冲器/翻译W / 400mV的LVPECL输出和内部输入终端时钟驱动器逻辑集成电路输出元件输入元件
文件：	总9页 (文件大小：133K)
中文：	中文翻译
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Precision Edge^®

6GHz, 1:2 FANOUT BUFFER/TRANSLATOR

w/400mV LVPECL OUTPUTS and INTERNAL

INPUT TERMINATION

SY5801®3U

Micrel, Inc.

Precision Edge

SY58013U

FEATURES

■ Precision 1:2, 400mV LVPECL fanout buffer

Precision Edge

■ Guaranteed AC performance over temperature and

voltage:

DESCRIPTION

• > 6GHz f

clock

MAX

• < 80ps t /t times

r f

The SY58013U is a 2.5V/3.3V precision, high-speed, fully

differential 1:2 LVPECL fanout buffer. Optimized to provide

two identical output copies with less than 15ps of skew and

• < 250ps t

• < 15ps max. skew

less than 10ps

total jitter, the SY58013U can process

(pk-pk)

■ Low jitter performance:

clock signals as fast as 6GHz or data patterns up to

10.7Gbps.

• < 10ps total jitter (clock)

• < 1ps

random jitter (data)

RMS

The differential input includes Micrel’s unique, 3-pin input

termination architecture that interfaces to LVPECL, LVDS,

and CML differential signals, (AC- or DC-coupled) as small

as 100mV without any level-shifting or termination resistor

networks in the signal path. For AC-coupled input interface

applications, an on-board output reference voltage (V

• < 10ps deterministic jitter (data)

■ Accepts an input signal as low as 100mV

■ Unique input termination and V pin accepts DC-

coupled and AC-coupled differential

inputs: LVPECL, LVDS and CML

REF

) is provided to bias the V pin. The outputs are 400mV

■ 400mV LVPECL compatible outputs

■ Power supply 2.5V ±5% and 3.3V ±10%

■ –40°C to +85°C temperature range

LVPECL compatible, with extremely fast rise/fall times

guaranteed to be less than 80ps.

The SY58013U operates from a 2.5V ±5% supply or

3.3V ±10% supply and is guaranteed over the full industrial

temperature range (–40°C to +85°C). For applications that

require greater output swing or CML compatible outputs,

consider the SY58012U 1:2 fanout buffer with 800mV

LVPECL outputs, or the SY58011U 1:2 fanout buffer with

400mV CML outputs. The SY58013U is part of Micrel’s

■ Available in 16-pin (3mm × 3mm) MLF™ package

APPLICATIONS

■ All SONET and All GigE clock distribution

■ Fibre Channel clock and data distribution

■ Backplanes

high-speed, Precision Edge product line. Data sheets and

support documentation can be found on Micrel’s web site at

www.micrel.com.

■ Data distribution: OC-48, OC-48+FEC, XAUI

■ High-end, low-skew, multiprocessor synchronous

clock distribution

TYPICAL PERFORMANCE

FUNCTIONAL BLOCK DIAGRAM

2GHz Output

V_CC= 3.3V

/Q0

50Ω

V_T

50Ω

/IN

/Q1

V_REF-AC

TIME (70ps/div.)

2GHz with 100mV Input

Precison Edge is a registered trademark of Micrel, Inc.

MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.

Rev.: B

Amendment: /0

M9999-051105

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

Issue Date: May 2005

Precision Edge^®

SY58013U

Micrel, Inc.

PACKAGE/ORDERING INFORMATION

Ordering Information⁽¹⁾

Package

Type

Operating

Range

Package

Marking

Lead

Finish

16 15 14 13

Part Number

SY58013UMI

MLF-16

Industrial

013U

Sn-Pb

SY58013UMITR⁽²⁾

SY58013UMG⁽³⁾

/Q0

/Q1

VREF-AC

/IN

013U with

Pb-Free bar-line indicator

Pb-Free

NiPdAu

SY58013UMGTR^{(2, 3)}MLF-16

Industrial

013U with

Pb-Free bar-line indicator

Pb-Free

NiPdAu

Notes:

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

2. Tape and Reel.

16-Pin MLF™

3. Pb-Free package recommended for new designs.

PIN DESCRIPTION

Pin Number

Pin Name

Pin Function

1, 4

IN, /IN

Differential Input: This input pair is the signal to be buffered. Each pin is internally

terminated with 50Ω to the V_Tpin. Note that this input will default to an indeterminate state

if left open. See “Input Interface Applications” section.

Input Termination Center-Tap: Each input terminates to this pin. The V_Tpin provides a

center-tap for each input (IN, /IN) to a termination network for maximum interface flexibility.

See “Input Interface Applications” section.

VREF-AC

Reference Output Voltage: This output biases to V_CC–1.4V. It is used for AC-coupled

inputs (IN, /IN). Connect V_REF-ACdirectly to the V_Tpin. Bypass with 0.01µF low ESR

capacitor to V_CC. Maximum curent source or sink is 0.5mA. See “Input Interface

Applications” section.

5, 8, 13, 16

6, 7, 14, 15

VCC

Positive Power Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to the

V_CCpins as possible.

GND,

(Exposed Pad)

Ground. Exposed pad must be connected to a ground plane that is the same potential

as the ground pin.

12, 11

9, 10

Q0, /Q0,

Q1, /Q1

LVPECL Differential Output Pairs: Differential buffered output copy of the input signal. The

output swing is typically 400mV. Unused output pairs may be left floating with no impact on

jitter. See “LVPECL Output Termination” section.

M9999-051105

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

Precision Edge^®

SY58013U

Micrel, Inc.

Absolute Maximum Ratings^{(Note 1)}

Operating Ratings^{(Note 2)}

Power Supply Voltage (V ) ....................... –0.5V to+4.0V

Power Supply Voltage (V ) ................. +2.375V to +3.60V

Input Voltage (V ) ......................................... –0.5V to V

Operating Temperature Range (T )........... –40°C to +85°C

Output Current (I

)

Package Thermal Resistance, Note 3

OUT

Continuous .............................................................50mA

Surge....................................................................100mA

MLF™ (θ

)

Still-Air .............................................................60°C/W

V Current

500lpfm............................................................54°C/W

Source or sink current on V pin ........................±100mA

MLF™ (ψ ) .......................................................33°C/W

Input Current

Source or sink current on (IN, /IN) ....................... ±50mA

Current

Source or sink current on V

REF

-AC, Note 4........ ±1.5mA

REF

Soldering, (20 sec.) ................................................... 260°C

Storage Temperature Range (T

) ....... –65 to +150°C

STORE

(Note 5)

DC ELECTRICAL CHARACTERISTICS

T_A= –40°C to +85°C

Symbol

V_CC

Parameter

Condition

Min

Typ

Max

3.60

Units

Power Supply Voltage

Power Supply Current

Input HIGH Voltage

Input LOW Voltage

Input Voltage Swing

Differential Input Voltage

In to V_TResistance

Output Reference Voltage

2.375

I_CC

Max. V_CC, no load

IN, /IN, Note 6

V_IH

V_CC–1.6

V_CC

V_IH–0.1

1.7

V_IL

IN, /IN

V_IN

IN, /IN; see Figure 1a

IN, /IN; see Figure 1b

0.1

0.2

V_{DIFF_IN}

R_IN

3.4

Ω

V_REF-AC

IN to V_T

V_CC–1.525 V_CC–1.4 V_CC–1.325

1.28

(Note 5)

LVPECL DC ELECTRICAL CHARACTERISTICS

V_CC= 3.3V ±10% or V_CC= 2.5 ±5%; R_L= 50Ω to V_CC–2V; T_A= –40°C to 85°C, unless otherwise stated.

Symbol

V_OH

Parameter

Condition

Min

Typ

Max

Units

Output HIGH Voltage

Output LOW Voltage

Output Voltage Swing

Q0, /Q0, Q1, /Q1

V_CC–1.145 V_CC–1.020 V_CC–0.895

V_CC–1.545 V_CC–1.420 V_CC–1.295

V_OL

Q0, /Q0, Q1, /Q1

V_OUT

Q0, /Q0, Q1, /Q1; see Figure 1a

200

400

800

V_{DIFF_OUT}

Differential Output Voltage Swing Q0, /Q0, Q1, /Q1; see Figure 1b

Note 1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. This is a stress rating only and functional operation

is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to ABSOLUTE MAXIMUM

RATINGS conditions for extended periods may affect device reliability.

Note 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.

Note 3. Thermal performance assumes exposed pad is soldered (or equivalent) to the device’s most negative potential on the PCB.

Note 4. Due to the limited drive capability, use for input of the same package only.

Note 5. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.

Note 6.

(min.) not lower than 1.2V.

M9999-051105

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

Precision Edge^®

SY58013U

Micrel, Inc.

(Note 7)

AC ELECTRICAL CHARACTERISTICS

V_CC= 2.5V ±5% or 3.3V ±10%; T_A= –40°C to +85°C; R_L= 50Ω to V_CC–2V, unless otherwise stated.

Symbol

Parameter

Condition

Min

Typ

Max

Units

Gbps

GHz

f_MAX

Maximum Operating Frequency

NRZ Data

Clock

_OUT≥ 200mV

_IN≥ 100mV

t_pd

Propagation Delay

100

180

250

t_CHAN

t_SKEW

t_JITTER

Channel-to-Channel Skew

Part-to-Part Skew

Note 8

Note 9

100

Data

Random Jitter (RJ) Note 10

Deterministic Jitter (DJ) Note 11

ps_RMS

ps_PP

Clock

Cycle-to-Cycle Jitter Note 12

Total Jitter (TJ) Note 13

ps_RMS

ps_PP

t_r, t_f

Output Rise/Fall Time

20% to 80%, at full output swing

Note 7. High frequency AC electricals are guaranteed by design and characterization.

Note 8. Skew is measured between outputs of the same bank under identical transitions.

Note 9. Skew is defined for two parts with identical power supply voltages at the same temperature and with no skew of the edges at the respective

inputs.

Note 10. RJ is measured with a K28.7 comma detect character pattern, measured at 10.7Gbps and 2.5Gbps/3.2Gbps.

Note 11. DJ is measured at 10.7Gbps and 2.5Gbps/3.2Gbps with both K28.5 and 2 –1 PRBS pattern

Note 12. Cycle-to-cycle jitter definition: The variation of periods between adjacent cycles, T –T

where T is the time between rising edges of the

n–1

output signal.

Note 13. Total jitter definition: With an ideal clock input of frequency ≤ f

, no more than one output edge in 10 output edges will deviate by more

MAX

than the specified peak-to-peak jitter value.

TIMING DIAGRAM

/IN

t_pd

SINGLE-ENDED AND DIFFERENTIAL SWINGS

V_IN,

V_{DIFF_IN}

(Typ. 400mV)

V_OUT

(Typ. 800mV)

V_{DIFF_OUT}

Figure 1b. Differential Voltage Swing

Figure 1a. Single-Ended Voltage Swing

M9999-051105

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

Precision Edge^®

SY58013U

Micrel, Inc.

TYPICAL OPERATING CHARACTERISTICS

= 3.3V, GND = 0, V = 100mV, T = 25°C, unless otherwise stated.

Within-Device Skew vs.

Temperature

Frequency vs. Amplitude

450

400

350

300

250

-40 -20

20 40 60 80 100

1000 2000 3000 4000 5000 6000

FREQUENCY (MHz)

TEMPERATURE (°C)

Propagation Delay vs.

Input Voltage Swing

Propagation Delay vs.

Temperature

190

195

190

185

180

175

170

165

160

155

150

145

140

135

185

180

175

170

165

160

155

200 400 600 800 1000

INPUT VOLTAGE SWING (V)

-40 -20

20 40 60 80 100

TEMPERATURE (°C)

M9999-051105

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

Precision Edge^®

SY58013U

Micrel, Inc.

FUNCTIONAL CHARACTERISTICS

= 3.3V, V = 0V, V = 100mV, T = 25°C, unless otherwise stated.

5GHz Output

200MHz Output

TIME (600ps/div.)

TIME (25ps/div.)

7GHz Output

10.7Gbps Output

TIME (25ps/div.)

TIME (20ps/div.)

(2 –1 PRBS Pattern)

M9999-051105

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

Precision Edge^®

SY58013U

Micrel, Inc.

INPUT STAGE

V_CC

GND

50Ω

V_T

/IN

Figure 2. Simplified Differential

Input Buffer

INPUT INTERFACE APPLICATIONS

V_CC

LVPECL

LVDS

/IN

SY58013U

R_pd

SY58013U

V_REF-AC

0.01µF

R_pd

V_REF-AC

0.01µF

V_CC

Note:

For V_CC= 2.5V, R_pd= 50Ω

For V_CC= 3.3V, R_pd= 100Ω

For V_CC= 2.5V system, R_pd= 19Ω

For V_CC= 3.3V system, R_pd= 50Ω

Figure 3c. LVDS

Input Interface

Figure 3a. DC-Coupled

LVPECL Input Interface

Figure 3b. AC-Coupled

LVPECL Input Interface

V_CC

CML

/IN

SY58013U

V_REF-AC

0.01µF

V_CC

Figure 3e. AC-Coupled CML

Input Interface

Figure 3d. DC-Coupled

CML Input Interface

(option: may connect V_Tto V_CC

)

M9999-051105

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

Precision Edge^®

SY58013U

Micrel, Inc.

OUTPUT TERMINATION RECOMMENDATIONS

LVPECL outputs have very low output impedance (open

emitter), and small signal swing which results in low EMI

(electro-magnetic interference). The LVPECL is ideal for

driving 50Ω and 100Ω controlled impedance transmission

lines. In addition, LVPECL is compatible for driving standard

PECL inputs since PECL inputs require only 100mV input

swing. Further, there are several techniques in terminating

the LVPECL outputs, as shown in Figure 5 through 7.

+3.3V

V_T= V_CC—1.3V

130Ω

+3.3V

1kΩ

130Ω

+3.3V

Z_O= 50Ω

1.6kΩ

V_T= V_CC—2V

82Ω

V_T= V_CC—2V

Figure 7. Terminating Unused I/O

Figure 5. Parallel Termination–Thevenin Equivalent

Note 1. Unused output (/Q) must be terminated to balance the output.

Note 1. For +2.5V systems: R1 = 250Ω, R2 = 62.5Ω

Note 2. For +3.3V systems: R1 = 130Ω, R2 = 82Ω

Note 2. For +2.5V systems: R1 = 250Ω, R2 = 62.5Ω, R3 = 1.25kΩ,

R4 = 1.2kΩ.

For +3.3V systems: R1 = 130Ω, R2 = 82Ω, R3 = 1kΩ, R4 = 1.6kΩ.

Note 3. Unused output pairs (Q and /Q) may be left floating.

+3.3V

Z = 50Ω

50Ω

source

destination

50Ω

0.01µF

(optional)

Figure 6. Three-Resistor “Y–Termination”

Note 1. Power-saving alternative to Thevenin termination.

Note 2. Placeterminationresistorsasclosetodestinationinputsaspossible.

Note 3.

R resistor sets the DC bias voltage, equal to V .

b T

For +2.5V systems R = 39Ω.

For +3.3V systems R = 46Ω to 50Ω.

Note 4. C1 is an optional bypass capacitor intended to compensate for any

t /t mismatches.

RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION

Part Number

Function

Data Sheet Link

SY58011U

7GHz, 1:2 CML Fanout Buffer/Translator

With Internal I/O Termination

http://www.micrel.com/product-info/prod/ucts/sy58011u.shtml

SY58012U

SY58013U

5GHz, 1:2 LVPECL Fanout Buffer/Translator With

Internal Input Termination

http://www.micrel.com/product-info/products/sy58012u.shtml

http://www.micrel.com/product-info/products/sy58013u.shtml

www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf

http://www.micrel.com/product-info/as/solutions.shtml

6GHz, 1:2 Fanout Buffer/Translator w/400mV

LVPECL Outputs and Internal Input Termination

16-MLF™ Manufacturing Guidelines

Exposed Pad Application Note

M-0317

HBW Solutions

M9999-051105

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

Precision Edge^®

SY58013U

Micrel, Inc.

16 LEAD MicroLeadFrame™ (MLF-16)

Package

EP- Exposed Pad

Die

CompSide Island

Heat Dissipation

V_EE

Heavy Copper Plane

V_EE

PCB Thermal Consideration for 16-Pin MLF™ Package

(Always solder, or equivalent, the exposed pad to the PCB)

Package Notes:

Note 1. Package meets Level 2 qualification.

Note 2. All parts are dry-packaged before shipment.

Note 3. Exposed pads must be soldered to a ground for proper thermal management.

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.

M9999-051105

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SY58013UMITR [MICREL]

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