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Micrel, Inc.
SINGLE SUPPLY QUAD PECL/TTL-TO-PECL
Precision Edge(R) Precision SY100S815 Edge(R)
SY100S815
FEATURES
s s s s s s s s s s 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 75k PECL input pull-down resistors Available in 16-pin SOIC package Precision Edge(R)
DESCRIPTION
The SY100S815 is a low skew 1-to-4 PECL differential driver designed for clock distribution in new, highperformance 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 50, 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.
BLOCK DIAGRAM
Q0 Q0 Q1 EIN EIN 0 Q2 Q2 TIN 1 Q3 Q3 Q1
TEN
PIN NAMES
Pin EIN, EIN TIN TEN Q0, Q0 - Q3, Q3 VCC VEE Function Differential PECL Input Pair TTL Input TTL Input Enable Differential PECL Outputs PECL VCC (+5.0V) PECL Ground (0V)
Precision Edge is a registered trademark of Micrel, Inc. M9999-032406 hbwhelp@micrel.com or (408) 955-1690
Rev.: G Amendment: /0
1
Issue Date: March 2006
Micrel, Inc.
Precision Edge(R) SY100S815
PACKAGE/ORDERING INFORMATION
Ordering Information
VCC EIN TIN Q3 Q3 Q2 Q2 VCCO
1 2 3 4 5 6 7 8 16 15 14
EIN TEN VEE
Part Number SY100S815ZC SY100S815ZCTR(1) SY100S815ZG(2) SY100S815ZGTR(1, 2)
Notes:
Package Type Z16-1 Z16-1 Z16-1 Z16-1
Operating Range Commercial Commercial Industrial Industrial
Package Marking SY100S815ZC SY100S815ZC SY100S815ZG with Pb-Free bar-line indicator SY100S815ZG with Pb-Free bar-line indicator
Lead Finish Sn-Pb Sn-Pb NiPdAu Pb-Free NiPdAu Pb-Free
TOP VIEW SOIC Z16-1
13 Q0 12
Q0
11 Q1 10 9
Q1 VCCO
1. Tape and Reel. 2. Pb-Free package is recommended for new designs.
16-Pin SOIC (Z16-1)
M9999-032406 hbwhelp@micrel.com or (408) 955-1690
2
Micrel, Inc.
Precision Edge(R) SY100S815
TRUTH TABLE
TEN L L H H EIN L H X X TIN X X L H Q L H L H
PECL DC ELECTRICAL CHARACTERISTICS
VCC = VCCO = +5.0V 5%
TA = 0C Symbol IIH IIL VIH VIL VOH VOL ICC Parameter Input HIGH Current Input LOW Current Input HIGH Input LOW Voltage(1) Voltage(1) Min. -- 0.5 3.835 3.190 Typ. -- -- -- --
VCC -955
TA = +25C Max. 150 -- 4.120 3.525 Min. -- 0.5 3.835 3.190 Typ. -- -- -- -- Max. 150 -- 4.120 3.525 Min. -- 0.5 3.835 3.190
TA = +85C Typ. -- -- -- -- Max. 150 -- 4.120 3.525 Unit A A V V mV mV mA
Output HIGH Output LOW
Voltage(2) VCC -1025
VCC -870 VCC -1025 VCC -955
VCC -870 VCC -1025 VCC -955 VCC -870
Voltage(2) VCC -1890 VCC -1705 VCC -1620 VCC -1890 VCC -1705 VCC -1620 VCC -1890 VCC -1705VCC -1620 -- 53 65 -- 53 65 -- 60 74
Power Supply(3) Current
Notes: 1. VCC = VCCO = 5.0V 2. VIN = VIH (Max.) or VIL (Min.) Loading with 50 to VCC -2V. 3. All inputs and outputs open.
TTL DC ELECTRICAL CHARACTERISTICS
VCC = VCCO = +5.0V 5%
TA = 0C Symbol VIH VIL IIH IIL VIK
Notes: 1. VIN=2.7V 2. VIN=5.0V 3. VIN=0.5V 4. IIN=-18mA
TA = +25C Max. -- 0.8 20 100 -0.6 -1.2 Min. 2.0 -- -- -- -- -- Typ. -- -- -- -- -- -- Max. -- 0.8 20 100 -0.6 -1.2
TA = +85C Min. 2.0 -- -- -- -- -- Typ. -- -- -- -- -- -- Max. -- 0.8 20 100 -0.6 -1.2 Unit V V A mA V Condition
Parameter Input HIGH Voltage Input LOW Voltage Input HIGH Current(1, 2) Input LOW Current(3) Input Clamp Voltage(4)
Min. 2.0 -- -- -- -- --
Typ. -- -- -- -- -- --
M9999-032406 hbwhelp@micrel.com or (408) 955-1690
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Micrel, Inc.
Precision Edge(R) SY100S815
AC ELECTRICAL CHARACTERISTICS(1-6)
VCC = VCCO = +5.0V 5%
TA = 0C Symbol tPLH tPHL Parameter Propagation Delay to EIN (differential)(2) EIN (single-ended)(3) TIN PECL(5) Output(1) 430 330 350 -- 250 -- -- -- 25 -- 630 730 950 50 -- 430 330 350 -- 250 -- -- -- 25 -- 630 730 950 50 -- 430 330 350 -- 250 -- -- -- 25 -- 630 730 950 50 -- ps mV Min. Typ. Max. Min. TA = +25C Typ. Max. Min. TA = +85C Typ. Max. Unit ps
tskew VPP
Within-Device skew(4) Minimum Input Swing
VCMR tr tf
PECL Common(6) Mode Range Output Rise/Fall Times 20% to 80%
-1.6 275
-- 375
-0.4 600
-1.6 275
-- 375
-0.4 600
-1.6 275
-- 375
-0.4 600
V ps
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.).
M9999-032406 hbwhelp@micrel.com or (408) 955-1690
4
Micrel, Inc.
Precision Edge(R) SY100S815
16-PIN SOIC .300" WIDE (Z16-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131
TEL
USA
+ 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. (c) 2006 Micrel, Incorporated. M9999-032406 hbwhelp@micrel.com or (408) 955-1690
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