SY100EPT28L 데이터 시트보기 (PDF) - Micrel

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SY100EPT28L

3V LVTTL-TO-DIFFERENTIAL LVPECL AND DIFFERENTIAL LVPECL-TO-LVTTL TRANSLATOR

Micrel 

Micrel, Inc.

ECL Pro™

SY10EPT28L

SY100EPT28L

LVTTL DC ELECTRICAL CHARACTERISTICS(4)

VCC = 3.3V ±10%

Symbol

Parameter

TA = –40°C

TA = +25°C

Min. Typ. Max. Min. Typ. Max.

VOH

Output HIGH Voltage

VOL

Output LOW Voltage

VIH

Input HIGH Voltage

VIL

Input LOW Voltage

VIK

Input Clamp Voltage

IIH

Input HIGH Current

2.0 —

— 2.0 —

—

—

—

0.5 —

—

0.5

2.0 —

— 2.0 —

—

—

—

0.8 —

—

0.8

—

— –1.2 —

— –1.2

—

—

20

—

—

20

—

— 100 —

— 100

IIL

IOUT(SC)

Input LOW Current

LVTTL Output

Short-Circuit Current

—

— –0.2 —

— –0.2

–275 — –80 –275 — –80

CIN

Input Capacitance (SOIC) —

(MSOP) —

—

— 0.75 —

—

— 1.1

—

TA = +85°C

Min. Typ. Max.

2.0 —

—

—

—

0.5

2.0 —

—

—

—

0.8

—

— –1.2

—

—

20

—

— 100

—

— –0.2

–275 — –80

—

—

—

—

Unit Condition

V IOH = –3mA

V IOH = –24mA

V

V

V IIK = –18mA

µA VIN = 2.7V

µA VIN = VCC

µA VIN = 0.5V

mA VOUT = 0V

pF

pF

AC ELECTRICAL CHARACTERISTICS(4)

VCC = +3.3V ±10%

Symbol

Parameter

TA = –40°C

TA = +25°C

TA = +85°C

Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit Condition

fMAX

Maximum Frequency

Output

LVPECL 700 —

— 700 —

— 700 —

— MHz Toggle

LVTTL 275 350 — 275 350 — 275 350 — MHz Frequency

tPLH

tPHL

VCMR

Propagation Delay

D_LVPECL ➝ Q_LVTTL

Q_LVTTL ➝ D_LVPECL

LVPECL

Common Mode Range

1.5

—

2.5 1.5

—

2.5 1.5

—

2.5 ns CL = 20pF

100 400 600 100 400 600 100 400 600 ps 50Ω to VCC–2.0

1.2

—

VCC 1.2

—

VCC 1.2

—

VCC

V

VPP

LVPECL Input Voltage Swing

(Single-Ended)

100

—

— 100 —

— 100 —

— mV Note 5

LVPECL Output Rise/Fall Times 200 — 500 200 — 500 200 — 500 ns 50Ω to VCC–2.0

(20% to 80%)

tr, tf

LVTTL Output Rise/Fall Times 0.5

—

1.0 0.5

—

1.0 0.5

—

1.0 ns CL = 20pF

(10% to 90%)

tDC

Duty Cycle

45 50 55 45 50 55 45 50 55 %

tJITTER Cycle-to-Cycle Jitter (rms)

—

0.2 < 1

—

0.2 < 1

—

0.2 < 1 ps

RMS

4. 10/100KEPT circuits are designed to meet the DC specifications shown in the above tables after thermal equilibrium has been established. The

circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained.

5. VPP (min) is the minimum input swing for which AC parameters are guaranteed.

M9999-111605

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

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