SY100ELT22LZGTR - Micrel, Inc.

SY10ELT22L

SY100ELT22L

Micrel, Inc.

M9999-052108

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

DESCRIPTION

■3.3V power supply

■300ps typical propagation delay

■<100ps output-to-output skew

■Differential PECL outputs

■PNP TTL inputs for minimal loading

■Flow-through pinouts

■Available in 8-pin SOIC package

The SY10/100ELT22L are dual TTL-to-differential

PECL translators with +3.3V power supply. Because

PECL (Positive ECL) levels are used, only +3.3V and

ground are required. The small outline 8-lead SOIC

package and the low skew, dual gate design of the

ELT22L makes it ideal for applications which require the

tranlation of a clock and a data signal.

The ELT22L is available in both ECL standards: the

10ELT is compatible with positive ECL 10H logic levels,

while the 100ELT is compatible with positive ECL 100K

logic levels.

FEATURES

3.3V DUAL TTL-to-DIFFERENTIAL

PECL TRANSLATOR

PIN NAMES

Pin Function

QnDifferential PECL Outputs

DnTTL Inputs

VCC +3.3V Supply

GND Ground

SY10ELT22L

SY100ELT22L

Rev.: J Amendment: /0

Issue Date: May 2008

SY10ELT22L

SY100ELT22L

Micrel, Inc.

M9999-052108

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

PACKAGE/ORDERING INFORMATION

Ordering Information(1)

Package Operating Package Lead

Part Number Type Range Marking Finish

SY10ELT22LZC Z8-1 Commercial HEL22L Sn-Pb

SY10ELT22LZCTR(2) Z8-1 Commercial HEL22L Sn-Pb

SY100ELT22LZC Z8-1 Commercial XEL22L Sn-Pb

SY100ELT22LZCTR(2) Z8-1 Commercial XEL22L Sn-Pb

SY100ELT22LZI Z8-1 Industrial XEL22L Sn-Pb

SY100ELT22LZITR(2) Z8-1 Industrial XEL22L Sn-Pb

SY10ELT22LZG(3) Z8-1 Industrial HEL22L with Pb-Free

Pb-Free bar-line indicator NiPdAu

SY10ELT22LZGTR(2, 3) Z8-1 Industrial HEL22L with Pb-Free

Pb-Free bar-line indicator NiPdAu

SY100ELT22LZG(3) Z8-1 Industrial XEL22L with Pb-Free

Pb-Free bar-line indicator NiPdAu

SY100ELT22LZGTR(2, 3) Z8-1 Industrial XEL22L with Pb-Free

Pb-Free bar-line indicator NiPdAu

Notes:

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

2. Tape and Reel.

3. Pb-Free package is recommended for new designs.

1Q0

/Q0

/Q1

8VCC

GND

PECL TTL

8-Pin SOIC (Z8-1)

SY10ELT22L

SY100ELT22L

Micrel, Inc.

M9999-052108

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

TA = -40°CTA = 0°CTA = +25°CTA = +85°C

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

ICC Power Supply Current — 25 — 25 — 25 — 25 mA —

TRUTH TABLE

DQ Q

HH L

LL H

Open H L

DC ELECTRICAL CHARACTERISTICS(1)

VCC = +3.0V to +3.8V

NOTE:

1. Parametric values specified at: 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V.

Symbol Paramter Value Unit

VCC Power Supply Voltage –0.5 to +7.0 V

VITTL Input Voltage –0.5 to VCC V

IITTL Input Current –30 to +5.0 mA

IOUT PECL Output Current mA

— Continuous 50

— Surge 100

TLEAD Lead Temperature +260 °C

(soldering, 20sec.)

Tstore Storage Temperature –65 to +150 °C

TAOperating Temperature –40 to +85 °C

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.

ABSOLUTE MAXIMUM RATINGS(1)

TTL DC ELECTRICAL CHARACTERISTICS(1)

TA = -40°CTA = 0°CTA = +25°CTA = +85°C

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

VIH Input HIGH Voltage 2.0 — 2.0 — 2.0 — 2.0 — V —

VIL Input LOW Voltage — 0.8 — 0.8 — 0.8 — 0.8 V —

IIH Input HIGH Current — 20 — 20 — 20 — 20 µAVIN = 2.7V

—100 — 100 — 100 — 100 VIN = VCC

IIL Input LOW Current — –0.2 — –0.2 — –0.2 — –0.2 mA VIN = 0.5V

VIK Input Clamp Voltage — –1.2 — –1.2 — –1.2 — –1.2 V IIN = –18mA

VCC = +3.0V to +3.8V

NOTE:

1. Parametric values specified at: 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V.

SY10ELT22L

SY100ELT22L

Micrel, Inc.

M9999-052108

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

TA = -40°CTA = 0°CTA = +25°CTA = +85°C

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

VOH Output HIGH Voltage(2) mV

10ELT 2220 — 2410 2280 — 2460 2320 — 2490 2390 — 2580

100ELT 2220 — 2420 2275 — 2420 2275 — 2420 2275 — 2420

VOL Output LOW Voltage(2) mV

10ELT 1350 — 1650 1350 — 1670 1350 — 1670 1350 — 1705

100ELT 1470 — 1750 1490 — 1680 1490 — 1680 1490 — 1680

VCC = VCC (Min.) to VCC (Max.)

NOTES:

1. Parametric values specified at: 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V.

2. These values are for VCC = 3.3V. Level Specifications will vary 1:1 with VCC.

PECL DC ELECTRICAL CHARACTERISTICS(1)

TA = -40°CTA = 0°CTA = +25°CTA = +85°C

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

tPD Propagation Delay to Output D, 100 600 100 600 100 600 100 600 ps 50Ω to VCC – 2.0V

ENECL/ENTTL

trOutput Rise/Fall Time 200 500 200 500 200 500 200 500 ps 50Ω to VCC – 2.0V

tf20% to 80%

tskpp Part-to-Part Skew(2) —500 — 500 — 500 — 500 ps 50Ω to VCC – 2.0V

tskew Within-Device Skew(2,3) —100 — 100 — 100 — 100 ps 50Ω to VCC – 2.0V

NOTES:

1. Parametric values specified at: 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V.

2. Guaranteed, but not tested.

3. Same transition @common VCC levels.

AC ELECTRICAL CHARACTERISTICS(1)

VCC = +3.0V to +3.8V

SY10ELT22L

SY100ELT22L

Micrel, Inc.

M9999-052108

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

8-PIN SOIC .150" WIDE (Z8-1)

Rev. 03

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.