SY58021UMG原理图各脚功能电路原理芯片引脚定义引脚图及功能-中国IC网-芯三七

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产品型号SY58021UMG的概述

芯片SY58021UMG的概述 SY58021UMG是一款由赛普拉斯半导体公司（Cypress Semiconductor）推出的高性能、低功耗的多通道接收器。该芯片尤其适用于高速数字信号传输，广泛应用于光纤通讯、信号网关以及其他数字通讯设备。SY58021UMG具有出色的电气特性和优越的信号完整性，使其成为满足现代通讯需求的理想选择。芯片SY58021UMG的详细参数 SY58021UMG的主要技术参数包括： 1. 工作电压： 3.3V 2. 工作温度范围： -40°C至+85°C 3. 速率支持：支持高达2.5Gbps的数据传输速率 4. 增益带宽积：适用于多种信号处理应用 5. 输入灵敏度：支持低至-6dB的输入信号 6. 输出摆幅：具有良好的输出摆幅以满足不同负载需求 7. 信号失真：显著降低信号失真，确保数据传输的完整性 8. 内置偏置功能：提高系统的稳定性 9...

产品型号SY58021UMG的Datasheet PDF文件预览

ꢀ

Precision 1:4, LVPECL fanout buffer

Guaranteed AC performance over temperature/

ꢀ

Low jitter performance

ꢀ

Accepts an input signal as low as 100mV

Unique input termination and VT pin accepts

DC-coupled and AC-coupled differential inputs:

LVPECL, LVDS, and CML

ꢀ

100k LVPECL compatible 800mV swing output

Power supply 2.5V ±5% and 3.3V ±10%

–40°C to +85°C temperature range

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

Precision Edge^®

4GHz, 1:4 LVPECL FANOUT

BUFFER/ TRANSLATOR

WITH INTERNAL TERMINATION

Micrel, Inc.

SY58021U

Precision Edge

SY58021U

FEATURES

Precision Edge

voltage:

DESCRIPTION

• >4GHz f

(clock)

MAX

• <100ps t / t Times

The SY58021U is a 2.5V/3.3V precision, high-speed, fully

differential 1:4 LVPECL fanout buffer. Optimized to provide

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

• <300ps t

• <15ps max skew

less than 10ps total jitter, the SY58021U can process

clock signals as fast as 4GHz.

• <10ps total jitter (clock)

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

termination architecture interfaces to differential LVPECL,

CML, and LVDS 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

• <1ps

random jitter (data)

rms

• <10ps deterministic jitter (data)

applications, an on-board output reference voltage (V

REF

) is provided to bias the VT pin. The outputs are 100k

LVPECL compatible, with extremely fast rise/fall times

guaranteed to be less than 100ps.

The SY58021U 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 faster rise/fall times, or greater bandwidth, consider

the SY58022U 1:4 fanout buffer with 400mV LVPECL output

swing, or the SY58020U 1:4 CML fanout buffer. The

APPLICATIONS

SY58021U is part of Micrel’s high-speed, Precision Edge

■ All SONET and All GigE clock distribution

■ Fibre Channel clock and data distribution

■ Backplane distribution

product line.

All support documentation can be found on Micrel’s web

site at www.micrel.com.

■ High-end, low skew, multiprocessor synchronous

clock distribution

FUNCTIONAL BLOCK DIAGRAM

TYPICAL PERFORMANCE

/Q0

50Ω

V_T

/IN

/Q1

V_REF-AC

/Q2

/Q3

Precision Edge is a registered trademark of Micrel , Inc.

MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.

Rev.: D

Amendment: /0

M9999-062405

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

Issue Date: June 2005

Precision Edge^®

SY58021U

Micrel, Inc.

PACKAGE/ORDERING INFORMATION

Ordering Information⁽¹⁾

Package

Type

Operating

Range

Package

Marking

Lead

Finish

16 15 14 13

Part Number

SY58021UMI

SY58021UMITR⁽²⁾

MLF-16

Industrial

021U

Sn-Pb

/Q1

VREF-AC

/IN

SY58021UMG

021U with

Pb-Free bar-line indicator

Pb-Free

NiPdAu

/Q2

SY58021UMGTR⁽²⁾

MLF-16

Industrial

021U 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.

16-Pin MLF™ (MLF-16)

2. Tape and Reel.

PIN DESCRIPTION

Pin Number

Pin Name

Pin Function

1, 4

IN, /IN

Differential Input: This input pair receives the signal to be buffered. Each pin of this pair

internally terminates with 50Ω to the VT pin. 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 the termination network for maximum interface

flexibility. See “Input Interface Applications” section.

VREF-AC

Reference Output Voltage: This output biases to V_CC–1.2V. It is used when AC-coupling

to differential inputs. Connect V_REF-ACdirectly to the VT pin. Bypass with 0.01µF low ESR

capacitor to V_CC. See “Input Interface Applications” section.

8, 13

5, 16

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.

14, 15

11, 12

9, 10

6, 7

/Q0, Q0,

/Q1, Q1,

/Q2, Q2,

/Q3, Q3

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

output swing is typically 800mV Proper termination is 50Ω to V_CC–2V at the receiving end.

Unused output pairs may be left floating with no impact on jitter or skew.

See “LVPECL Output Termination” section.

M9999-062405

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

Precision Edge^®

SY58021U

Micrel, Inc.

Absolute Maximum Ratings⁽¹⁾

Operating Ratings⁽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

LVPECL Output Current (I

)

OUT

Package Thermal Resistance

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

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

MLF™ (θ

)

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

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

Source or sink current on VT pin

V Current .......................................................... ±100mA

MLF™ (ψ

)

Source or sink current on IN, /IN

(3)

Junction-to-Board Resistance ......................33°C/W

Input Current ........................................................±50mA

(4)

Source or sink current on V

REF-AC

Current ....................................................... ±1.5mA

REF

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

Storage Temperature Range (T ) ............ –65°C to +150°C

(5)

INPUT DC ELECTRICAL CHARACTERISTICS

T_A= –40°C to 85°C

Symbol

Parameter

Condition

Min

Typ

Max

Units

V_CC

Power Supply Voltage

V_CC= 2.5V

V_CC= 3.3V

2.375

3.0

2.5

3.3

2.625

3.60

I_CC

Power Supply Current

Input HIGH Voltage

No load, V_CC= max.

IN, /IN, Note 6

125

160

V_CC

V_IH–0.1

1.7

V_IH

V_CC–1.6

V_IL

Input LOW Voltage

IN, /IN

V_IN

Input Voltage Swing

Differential Input Voltage Swing

IN-to-V_TResistance

IN-to-V_TVoltage

IN, /IN; see Figure 1a.

IN, /IN; see Figure 1b.

0.1

0.2

V_{DIFF_IN}

R_IN

3.4

Ω

V_{T IN}

1.28

V_REF

Output Reference Voltage

V_CC–1.30 V_CC–1.2 V_CC–1.1

-AC

(5)

LVPECL OUTPUT DC ELECTRICAL CHARACTERISTICS

V_CC= 3.3V ±10% or 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

V_CC–1.145

V_CC–1.945

550

Typ

Max

V_CC–0.895

V_CC–1.695

1050

Units

Output HIGH Voltage

V_OL

Output LOW Voltage

V_OUT

Output Voltage Differential Swing

Differential Output Voltage Swing

see Figure 1a.

see Figure 1b.

780

V_{DIFF_OUT}

1100

1560

2100

Notes:

1. Permanent device damage may occur if ratings in the “Absolute Maximum Ratings” section are exceeded. This is a stress rating only and functional

operation is not implied for 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.

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

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

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

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

6. V (min.) not lower than 1.2V.

M9999-062405

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

Precision Edge^®

SY58021U

Micrel, Inc.

AC ELECTRICAL CHARACTERISTICS

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

Symbol

Parameter

Condition

_OUT≥ 400mV

Min

Typ

Max

Units

GHz

Gbps

f_MAX

Maximum Operating Frequency

Clock

NRZ Data

220

t_pd

Propagation Delay

150

300

t_CHAN

t_SKEW

t_JITTER

Channel-to-Channel Skew

Part-to-Part Skew

Note 7

Note 8

Clock

Cycle-to-Cycle Jitter Note 9

Total Jitter Note 10

ps_RMS

ps_PP

ps_RMS

ps_PP

Data

Random Jitter Note 11

Deterministic Jitter Note 12

2.5Gbps – 3.2Gbps

110

t_r, t_f

Output Rise/Fall Time 20% to 80% At full swing.

Notes:

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

8. 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.

9. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, T –T

where T is the time between rising edges of the output

n–1

signal.

10. 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 than the

MAX

specified peak-to-peak jitter value.

11. Random jitter is measured with a K28.7 comma detect character pattern, measured at 2.5Gbps/3.2Gbps.

12. Deterministic jitter is measured at 2.5Gbps/3.2Gbps with both K28.5 and 2 –1 PRBS pattern

TIMING DIAGRAM

/IN

t_pd

SINGLE-ENDED AND DIFFERENTIAL SWINGS

V_{DIFF_IN}

V_IN,

V_OUT

V_{DIFF_OUT}

1.6V

800mV

Figure 1a. Single-Ended Voltage Swing

Figure 1b. Differential Voltage Swing

M9999-062405

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

Precision Edge^®

SY58021U

Micrel, Inc.

TYPCIAL OPERATING CHARACTERISTICS

= 2.5V, GND = 0, V = 100mV, T = 25°C, unless otherwise stated.

IN A

Amplitude

vs. Frequency

Propagation Delay vs.

Input Voltage Swing

Propagation Delay vs.

Temperature

900

800

700

600

500

400

300

200

100

194

192

190

188

186

184

182

180

178

176

174

184

183

182

181

180

179

178

177

176

200 400 600 800 1000 1200

INPUT VOLTAGE SWING (mV)

-60 -40 -20

20 40 60 80 100

TEMPERATURE (°C)

FREQUENCY (MHz)

Skew

vs. Temperature

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

-60 -40 -20

20 40 60 80 100

TEMPERATURE (°C)

M9999-062405

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

Precision Edge^®

SY58021U

Micrel, Inc.

FUNCTIONAL CHARACTERISTICS

= 2.5V, GND = 0, V = 100mV, T = 25°C, unless otherwise stated.

200MHz Output

5GHz Output

TIME (600ps/div.)

TIME (25ps/div.)

4GHz Output

TIME (30ps/div.)

M9999-062405

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

Precision Edge^®

SY58021U

Micrel, Inc.

INPUT STAGE

V_CC

V_T

50Ω

GND

/IN

Figure 2. Simplified Differential Input Buffer

INPUT INTERFACE APPLICATIONS

V_CC

LVPECL

/IN

LVDS

SY58021U

/IN

R_pd

SY58021U

R_pd

V_DD

V_REF-AC

0.01µF

V_REF-AC

V_CC

For 3.3V, R_pd= 100Ω

For 2.5V, R_pd= 50Ω

For V_CC= 2.5V, R_pd= 19Ω

For V_CC= 3.3V, R_pd= 50Ω

Figure 3a. LVPECL

Input Interface

Figure 3b. AC-Coupled LVPECL

Input Interface

Figure 3c. LVDS

Input Interface

V_CC

CML

/IN

SY58021U

V_REF-AC

0.01µF

V_CC

Option: May connect V_Tto V_CC

Figure 3d. DC-Coupled CML

Input Interface

Figure 3e. AC-Coupled CML

Input Interface

M9999-062405

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

Precision Edge^®

SY58021U

Micrel, Inc.

LVPECL OUTPUT

LVPECL output have very low output impedance (open impedance transmission lines. There are several techniques

emitter), and small signal swing which results in low EMI. in terminating the LVPECL output, as shown in Figures 4

LVPECL is ideal for driving 50Ω and 100Ω controlled through 6.

+3.3V*

+3.3V

Z = 50Ω

+3.3V*

130Ω

+3.3V*

SY58021U

_O= 50Ω

SY58021U

50Ω

Z_O= 50Ω

“destination”

“source”

V_DD

C1 (optional)

0.01µF

82Ω

50Ω

R *

*Note. For +2.5V systems,

R1 = 250Ω, R2 = 62.5Ω

V_T= V_CC—2V

For +2.5V, R = 19Ω

Notes:

For +3.3V, R = 46Ω to 50Ω

1. Power saving alternative to Thevenin termination.

2. Place termination resistors as close to destination inputs as possible.

3. Rb resistor sets the DC bias voltage, equal to VT.

Figure 4. Parallel Termination-Thevenin Equivalent

Figure 5. Parallel Termination (3-Resistor)

+3.3V*

130Ω

+3.3V*

_O= 50Ω

SY58021U

Z_O= 50Ω

82Ω

V_T= V_CC—2V

*Note:

For +2.5V systems,

R1 = 250Ω, R2 = 62.5Ω

Figure 6. Terminating Unused I/O

RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION

Part Number Function

Data Sheet Link

SY58020U

SY58021U

SY58022U

6GHz, 1:4 CML Fanout Buffer/Translator

Internal I/O Termnations

http://www.micrel.com/product-info/products/sy58020u.shtml

4GHz, 1:4 LVPECL Fanout Buffer/Translator

with Internal Termination

http://www.micrel.com/product-info/products/sy58021u.shtml

http://www.micrel.com/product-info/products/sy58022u.shtml

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

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

5.5GHz, 1:4 Fanout Buffer/Translator

w/400mV LVPECL Outputs and Internal Terminations

16-MLF™ Manufacturing Guidelines

Exposed Pad Application Note

M-0317

HBW Solutions

M9999-062405

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

Precision Edge^®

SY58021U

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:

1. Package meets Level 2 qualification.

2. All parts are dry-packaged before shipment.

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 data sheet 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.

M9999-062405

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

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SY58021UMG产品参数

型号:	SY58021UMG
是否Rohs认证：	符合
生命周期：	Active
包装说明：	HVQCCN, LCC16,.12SQ,20
Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01
风险等级：	1.55
其他特性：	IT ALSO OPERATE ON 3.3V SUPPLY
系列：	58021
输入调节：	DIFFERENTIAL
JESD-30 代码：	S-XQCC-N16
JESD-609代码：	e4
长度：	3 mm
逻辑集成电路类型：	LOW SKEW CLOCK DRIVER
湿度敏感等级：	2
功能数量：	1
反相输出次数：
端子数量：	16
实输出次数：	8
最高工作温度：	85 °C
最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN
封装等效代码：	LCC16,.12SQ,20
封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
最大电源电流（ICC）：	160 mA
Prop。Delay @ Nom-Sup：	0.3 ns
传播延迟（tpd）：	0.3 ns
认证状态：	Not Qualified
Same Edge Skew-Max（tskwd）：	0.015 ns
座面最大高度：	0.9 mm
最大供电电压 (Vsup)：	2.625 V
最小供电电压 (Vsup)：	2.375 V
标称供电电压 (Vsup)：	2.5 V
表面贴装：	YES
温度等级：	INDUSTRIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	NO LEAD
端子节距：	0.5 mm
端子位置：	QUAD
宽度：	3 mm
最小 fmax：	4000 MHz
Base Number Matches：	1

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