SY100S815ZGTR - Micrel, Inc.

Precision Edge®

SY100S815

Micrel, Inc.

M9999-032406

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

BLOCK DIAGRAM

FEATURES

DESCRIPTION

Rev.: G Amendment: /0

Issue Date: March 2006

The SY100S815 is a low skew 1-to-4 PECL differential

driver designed for clock distribution in new, high-

performance PECL systems. It accepts either a PECL

clock input or a TTL input by using the TTL enable pin TEN.

When the TTL enable pin is HIGH, the TTL input is enabled

and the PECL input is disabled. When the enable pin is set

LOW, the TTL input is disabled and the PECL input is

enabled.

The device is specifically designed and produced for low

skew. The interconnect scheme and metal layout are

carefully optimized for minimal gate-to-gate skew within

the device. Wafer characterization and process control

ensure consistent distribution of propagation delay from lot

to lot. Since the S815 shares a common set of “basic”

processing with the other members of the ECLinPS family,

wafer characterization at the point of device personalization

allows for tighter control of parameters, including

propagation delay.

To ensure that the skew specification is met, it is

necessary that both sides of the differential output are

terminated into 50Ω, even if only one side is being used. In

most applications, all nine differential pairs will be used

and, therefore, terminated. In the case where fewer than

nine pairs are used, it is necessary to terminate at least the

output pairs on the same package side (i.e. sharing the

same VCCO as the pair(s) being used on that side) in order

to maintain minimum skew.

■Quad PECL version of popular ECLinPS E111

■Low skew

■Guaranteed skew spec

■TTL enable input

■Selectable TTL or PECL clock input

■Single +5V supply

■Differential internal design

■PECL I/O fully compatible with industry standard

■Internal 75kΩ PECL input pull-down resistors

■Available in 16-pin SOIC package

Precision Edge®

SY100S815

SINGLE SUPPLY QUAD

PECL/TTL-TO-PECL

Pin Function

EIN, EIN Differential PECL Input Pair

TIN TTL Input

TEN TTL Input Enable

Q0, Q0 – Q3, Q3Differential PECL Outputs

VCC PECL VCC (+5.0V)

VEE PECL Ground (0V)

PIN NAMES

EIN

EIN 0

TIN

TEN

Precision Edge is a registered trademark of Micrel, Inc.

Precision Edge®

SY100S815

Micrel, Inc.

M9999-032406

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

PACKAGE/ORDERING INFORMATION

16-Pin SOIC (Z16-1)

Ordering Information

Package Operating Package Lead

Part Number Type Range Marking Finish

SY100S815ZC Z16-1 Commercial SY100S815ZC Sn-Pb

SY100S815ZCTR(1) Z16-1 Commercial SY100S815ZC Sn-Pb

SY100S815ZG(2) Z16-1 Industrial SY100S815ZG with NiPdAu

Pb-Free bar-line indicator Pb-Free

SY100S815ZGTR(1, 2) Z16-1 Industrial SY100S815ZG with NiPdAu

Pb-Free bar-line indicator Pb-Free

Notes:

1. Tape and Reel.

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

VCC

TIN

VCCO

EIN

TEN

VEE

VCCO

TOP VIEW

SOIC

Z16-1

EIN

Precision Edge®

SY100S815

Micrel, Inc.

M9999-032406

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

VCC = VCCO = +5.0V ± 5%

TA = 0°CTA = +25°CTA = +85°C

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

IIH Input HIGH Current ——150 ——150 ——150 µA

IIL Input LOW Current 0.5 ——0.5 ——0.5 ——µA

VIH Input HIGH Voltage(1) 3.835 —4.120 3.835 —4.120 3.835 —4.120 V

VIL Input LOW Voltage(1) 3.190 —3.525 3.190 —3.525 3.190 —3.525 V

VOH Output HIGH Voltage(2) VCC –1025 VCC –955 VCC –870 VCC –1025 VCC –955 VCC –870 VCC –1025 VCC –955 VCC –870 mV

VOL Output LOW Voltage(2) VCC –1890 VCC –1705 VCC –1620 VCC –1890 VCC –1705 VCC –1620 VCC –1890 VCC –1705VCC –1620 mV

ICC Power Supply(3) —53 65 —53 65 —60 74 mA

Current

PECL DC ELECTRICAL CHARACTERISTICS

Notes:

1. VCC = VCCO = 5.0V

2. VIN = VIH (Max.) or VIL (Min.) Loading with 50Ω to VCC –2V.

3. All inputs and outputs open.

TRUTH TABLE

TEN EIN TIN Q

LLXL

LHXH

HXLL

HXHH

TTL DC ELECTRICAL CHARACTERISTICS

VCC = VCCO = +5.0V ± 5%

TA = 0°CTA = +25°CTA = +85°C

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

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

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

IIH Input HIGH Current(1, 2) —— 20 ——20 ——20 µA

——100 ——100 ——100

IIL Input LOW Current(3) ——–0.6 ——–0.6 ——–0.6 mA

VIK Input Clamp Voltage(4) ——–1.2 ——–1.2 ——–1.2 V

Notes:

1. VIN=2.7V

2. VIN=5.0V

3. VIN=0.5V

4. IIN=-18mA

Precision Edge®

SY100S815

Micrel, Inc.

M9999-032406

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

AC ELECTRICAL CHARACTERISTICS(1–6)

Notes:

1. Part-to-part skew is defined as Max. — Min. value at the given temperature.

2. The differential propagation delay is defined as the delay from the crossing points of the differential input signals to the crossing point of the

differential output signals.

3. The single-ended propagation delay is defined as the delay from the 50% point of the input signal to the 50% point of the output signal.

4. The within-device skew is defined as the worst case difference between any two similar delay paths within a single device.

5. VPP (min.) is defined as the minimum input differential voltage which will cause no increase in the propagation delay. The VPP (min.) is AC limited for

the S815, as a differential input as low as 50mV will still produce full PECL levels at the output.

6. VCMR is defined as the range within which the VIH level may vary, with the device still meeting the propagation delay specification. The VIL level must

be such that the peak-to-peak voltage is less than 1.0V and greater than or equal to VPP (min.).

VCC = VCCO = +5.0V ± 5%

TA = 0°CTA = +25°CTA = +85°C

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

tPLH Propagation Delay to Output(1) ps

tPHL EIN (differential)(2) 430 —630 430 —630 430 —630

EIN (single-ended)(3) 330 —730 330 —730 330 —730

TIN 350 —950 350 —950 350 —950

tskew Within-Device skew(4) —25 50 —25 50 —25 50 ps

VPP Minimum PECL(5) 250 ——250 ——250 ——mV

Input Swing

VCMR PECL Common(6) –1.6 —–0.4 –1.6 —–0.4 –1.6 —–0.4 V

Mode Range

trOutput Rise/Fall Times 275 375 600 275 375 600 275 375 600 ps

tf20% to 80%

Precision Edge®

SY100S815

Micrel, Inc.

M9999-032406

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

16-PIN SOIC .300" WIDE (Z16-1)

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.

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