MICREL SY10EPT20V, SY100EPT20V Datasheet

3.3V/5V LVTTL/LVCMOS-to­DIFFERENTIAL LVPECL
TRANSLATOR

SY10EPT20V

SY100EPT20V

FEATURES

■ 3.3V and 5V power supply options

■ 300ps typical propagation delay

■ Differential LVPECL output

■ ICC Max 20mA

■ PNP LVTTL input for minimal loading

■ Q output will default HIGH with inputs open

■ High bandwidth to 800MHz typical

■ Available in 8-pin MSOP and SOIC package

PIN CONFIGURATION/BLOCK DIAGRAM

/Q

NC

1NC
2

Q

3

LVPECL

4

LVTTL

8V

CC

D

7

NC

6

GND

5

DESCRIPTION

The SY10/100EPT20V is a TTL/CMOS to differential
PECL translator. Capable of running from a 3.3 or 5V
supply, the part can be used in either LVTTL/LVCMOS/
LVPECL or TTL/CMOS/PECL systems.

The device only requires a single positive supply of

3.3V or 5V - no negative supply is required.

The tiny 8-pin MSOP package and the low skew, dual
gate design of the EPT20V makes it ideal for those
applications where space, performance, and low power
are at a premium.

PIN NAMES

Pin Function

Q, /Q Differential LVPECL Output
D LVTTL Input
V

CC

GND Ground

Positive Supply

(Available in 8-pin SOIC or 8-pin MSOP)

1

Rev.: A Amendment: /1
Issue Date: July 2000

Micrel

SY10EPT20V

SY100EPT20V

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol Paramter Value Unit

V
V
I

I

I

OUT

CC
I

Power Supply Voltage –0.5 to +7.0 V
TTL Input Voltage –0.5 to V

CC

V
TTL Input Current –30 to +5.0 mA
PECL Output Current mA

–Continuous 50

TRUTH TABLE

DQ/Q

HH L

LL H

Open H L

–Surge 100

T

store

T

A

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 RATlNG conditions
for extended periods may affect device reliability.

Storage Temperature –65 to +150 °C
Operating Temperature –40 to +85 °C

DC ELECTRICAL CHARACTERISTICS

VCC = +3.3V ±10% or +5.0V ±10%

= –40°CTA = 0°CT

T

A

Symbol Parameter Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit Condition

I

CC

Power Supply Current — 20 — 20 — — 20 — 20 mA —

= +25°CT

A

= +85°C

A

TTL DC ELECTRICAL CHARACTERISTICS

VCC = +3.3V ±10% or +5.0V ±10%

TA = –40°CTA = 0°CT

Symbol Parameter Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit Condition

V

IH

V

IL

I

IH

I

IL

V

IK

Input HIGH Voltage 2.0 — 2.0 — 2.0 — — 2.0 — V —
Input LOW Voltage — 0.8 — 0.8 — — 0.8 — 0.8 V —
Input HIGH Current — 20 — 20 — — 20 — 20 µAVIN = 2.7V

— 100 — 100 — — 100 — 100 VIN = V
Input LOW Current — –0.2 — –0.2 — — –0.2 — –0.2 mA VIN = 0.5V
Input Clamp Voltage — –1.2 — –1.2 — — –1.2 — –1.2 V IIN = –18mA

= +25°CT

A

= +85°C

A

PECL DC ELECTRICAL CHARACTERISTICS

VCC = +3.3V ±10% or +5.0V ±10%

TA = –40°CTA = 0°CT

Symbol Parameter Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit Condition

V

OH

Output HIGH Voltage

(1)

10EPT 3920 4110 3980 4160 4020 — 4190 4090 4280

100EPT 3915 4120 3975 4120 3975 — 4120 3975 4120

V

OL

Output LOW Voltage

(1)

10EPT 3050 3350 3050 3370 3050 — 3370 3050 3405

100EPT 3170 3445 3190 3380 3190 — 3380 3190 3380

= +25°CT

A

= +85°C

A

mV

mV

CC

NOTES:

1. These values are for VCC = 5.0V. Level Specifications will vary 1:1 with VCC.

2

Micrel

SY10EPT20V

SY100EPT20V

AC ELECTRICAL CHARACTERISTICS

(1)

VCC = +3.3V ±10% or +5.0V ±10%

TA = –40°CTA = 0°CT

Symbol Parameter Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit Condition

(2)

(1)

100 600 100 600 100 — 600 100 600 ps

— 500 — 500 — — 500 — 500 ps

t

PLH

t

PHL

t

skpp

f

MAX

f

MAX

t

r

t

f

NOTES:

1. Input Rise Time < 1.0ns.

2. Guaranteed by design. Not tested in production.

Propagation Delay

Part-to-Part Skew
Maximum Input Frequency 350 — 350 — 350 — — 350 — MHz
Maximum Toggle Frequency — 800 — 800 — — 800 — 800 MHz
Output Rise/Fall Time 200 500 200 500 200 — 500 200 500 ps

(20% to 80%)

= +25°CT

A

= +85°C

A

50Ω to VCC – 2.0V

50Ω to VCC – 2.0V
50Ω to VCC – 2.0V
50Ω to VCC – 2.0V
50Ω to VCC – 2.0V

PRODUCT ORDERING INFORMATION

Ordering Package Operating VCC Range

Code Type Range (V)

SY10EPT20VZC Z8-1 Commercial +3.3V ±5%
SY10EPT20VZCTR Z8-1 Commercial +3.3V ±5%
SY10EPT20VKC K8-1 Commercial +3.3V ±5%
SY10EPT20VKCTR K8-1 Commercial +3.3V ±5%
SY100EPT20VZC Z8-1 Commercial +3.3V ±5%
SY100EPT20VZCTR Z8-1 Commercial +3.3V ±5%
SY100EPT20VKC K8-1 Commercial +3.3V ±5%
SY100EPT20VKCTR K8-1 Commercial +3.3V ±5%

3