SY100EL15LZITR - Micrel - Datasheet.Live

Precision Edge®

SY100EL15LMicrel, Inc.

M9999-031306

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

The SY100EL15L is a low skew 1:4 clock distribution

IC designed explicitly for low skew clock distribution

applications. The device can be driven by either a

differential or single-ended ECL or, if positive power

supplies are used, PECL input signal. If a single-ended

input is to be used the VBB output should be connected

to the CLK input and bypassed to ground via a 0.01µF

capacitor. The VBB output is designed to act as the

switching reference for the input of the EL15 under single-

ended input conditions. As a result, this pin can only

source/sink up to 0.5mA of current.

The EL15 features a multiplexed clock input to allow

for the distribution of a lower speed scan or test clock

along with the high speed system clock. When LOW (or

left open and pulled LOW by the input pull-down resistor)

the SEL pin will select the differential clock input.

The common enable (EN) is synchronous so that the

outputs will only be enabled/disabled when they are

already in the LOW state. This avoids any chance of

generating a runt clock pulse when the device is enabled/

disabled as can happen with an asynchronous control.

The internal flip flop is clocked on the falling edge of the

input clock, therefore all associated specification limits

are referenced to the negative edge of the clock input.

When both differential inputs are left open, CLK input

will pull down to VEE and CLK input will bias around

VCC/2.

Pin Function

CLK Differential Clock Inputs

SCLK Synchronous Clock Input

EN Synchronous Enable

SEL Clock Select Input

VBB Reference Output

Q0-3 Differential Clock Outputs

TRUTH TABLE

PIN NAMES

FEATURES

DESCRIPTION

Precision Edge®

SY100EL15L

CLK SCLK SEL EN Q

L XLLL

HXLLH

XLHLL

XHHLH

XXXHL*

* On next negative transition of CLK or SCLK

■3.3V power supply

■50ps output-to-output skew

■Low power

■Synchronous enable/disable

■Multiplexed clock input

■75KΩ internal input pull-down resistors

■Available in 16-pin SOIC package

3.3V 1:4 CLOCK

DISTRIBUTION

1Rev.: D Amendment: /0

Issue Date:

March 2006

Precision Edge is a registered trademark of Micrel, Inc.

Precision Edge®

SY100EL15LMicrel, Inc.

M9999-031306

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

PACKAGE/ORDERING INFORMATION

Ordering Information(1)

Package Operating Package Lead

Part Number Type Range Marking Finish

SY100EL15LZC Z16-2 Commercial SY100EL15LZC Sn-Pb

SY100EL15LZCTR(2) Z16-2 Commercial SY100EL15LZC Sn-Pb

SY100EL15LZI Z16-2 Industrial SY100EL15LZI Sn-Pb

SY100EL15LZITR(2) Z16-2 Industrial SY100EL15LZI Sn-Pb

SY100EL15LZG(3) Z16-2 Industrial SY100EL15LZG with Pb-Free

Pb-Free bar-line indicator NiPdAu

SY100EL15LZGTR(2, 3) Z16-2 Industrial SY100EL15LZG 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.

CLK

SEL

CLK

16 15 14 13 12 11 10 9

12345678

1 0

SCLK

16-Pin SOIC (Z16-2)

Precision Edge®

SY100EL15LMicrel, Inc.

M9999-031306

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

Symbol Rating Value Unit

VEE Power Supply (VCC = 0V) –8.0 to 0 VDC

VIN Input Voltage (VCC = 0V) 0 to –6.0 VDC

IOUT Output Current –Continuous 50 mA

–Surge 100

TLEAD Lead Temperature (soldering, 20sec.) +260 °C

TAOperating Temperature Range –40 to +85 °C

Notes:

1. Absolute maximum rating, beyond which, device life may be impaired, unless otherwise specified on an individual data sheet.

2. Parametric values specified at: 3 volt Power Supply Range 100EL15L Series –3.0V to –3.8V

ABSOLUTE MAXIMUM RATINGS(1)

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

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

VOH Output HIGH Voltage(2) –1085 –880 –1025 –880 –1025 –955 –880 –1025 –880 mV

VOL Output LOW Voltage(2) –1830 –1555 –1810 –1620 –1810 –1705 –1620 –1810 –1620 mV

VOHA Output HIGH Voltage(3) –1095 — –1035 — –1035 — — –1035 — mV

VOLA Output LOW Voltage(3) — –1555 — –1610 — — –1610 — –1610 mV

VIH Input HIGH Voltage –1165 –880 –1165 –880 –1165 — –880 –1165 –880 mV

VIL Input LOW Voltage –1810 –1475 –1810 –1475 –1810 — –1475 –1810 –1475 mV

IIH Input High Current — 150 — 150 — — 150 — 150 µA

IIL Input LOW Current(4) 0.5 — 0.5 — 0.5 — 0.5 — µA

CLK –300 — –300 — –300 — — –300 —

IEE Power Supply Current — 35 — 35 — 25 35 — 38 mA

VBB Output Reference Voltage –1.38 –1.26 –1.38 –1.26 –1.38 — –1.26 –1.38 –1.26 V

DC ELECTRICAL CHARACTERISTICS

VEE = 3.3V ±10%; VCC = GND(1)

Notes:

1. This table replaces the three traditionally seen in ECL 100K data books. Outputs are terminated through a 50Ω resistor to –2.0V.

2. VIN = VIH(Max) or VIL(Min).

3. VIN = VIH(Min) or VIL(Max).

4. VIN = VIL(Max).

Precision Edge®

SY100EL15LMicrel, Inc.

M9999-031306

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

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

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

tPD Propagation Delay ps

CLK to Q (Diff) 460 660 470 670 470 — 670 500 700

CLK to Q (SE) 410 710 420 720 420 — 720 450 750

SCLK to Q 410 710 420 720 420 — 720 470 750

tskew Part-to-Part Skew(1) — 200 — 200 — — 200 — 200 ps

Within-Device Skew — 50 — 50 — — 50 — 50

tSSetup Time EN 150 — 150 — 150 — — 150 — ps

tHHold Time EN 400 — 400 — 400 — — 400 — ps

VPP Minimum Input Swing

CLK 250 — 250 — 250 — — 250 — mV

VCMR Common Mode Range(2) mV

VPP < 500mV –2.0 –0.4 –2.1 –0.4 –2.1 — –0.4 –2.1 –0.4

VPP ≥500mV –1.8 –0.4 –1.9 –0.4 –1.9 — –0.4 –1.9 –0.4

trOutput Rise/Fall TimesQ 375 625 325 575 325 — 575 325 575 ps

tf(20% – 80%)

AC ELECTRICAL CHARACTERISTICS

VEE = 3.3V ±10%; VCC = GND(1)

Notes:

1. Skews are specified for identical LOW-to-HIGH or HIGH-to-LOW transitions.

2. VCMR is referenced to the most positive side of the differential input signal. Normal operation is obtained when the input signals are within the VCMR range

and the input swing is greater than VPP(Min.) and <1V. The lower end of the VCMR range varies 1:1 with VEE. The numbers in the spec table assume a

nominal VEE = –3.3V. Note for PECL operation, the VCMR(Min) will be fixed at 3.3V – |VCMR(Min)|.

Precision Edge®

SY100EL15LMicrel, Inc.

M9999-031306

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

16-PIN SOIC .150" WIDE (Z16-2)

Rev. 02

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

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