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5V/3.3V 1:9 DIFFERENTIAL CLOCK DRIVER (w/o ENABLE)
ClockWorksTM SY10E111A/L SY100E111A/L
FEATURES
s s s s s s s s s 5V and 3.3V power supply options 200ps part-to-part skew 50ps output-to-output skew Differential design VBB output Voltage and temperature compensated outputs 75K input pulldown resistors Fully compatible with Motorola MC100LVE111 Available in 28-pin PLCC package
DESCRIPTION
The SY10/100E111A/L are low skew 1-to-9 differential driver designed for clock distribution in mind. The SY10/ 100E111A/L's function and performance are similar to the popular SY10/100E111, with the improvement of lower jitter and the added feature of low voltage operation. It accepts one signal input, which can be either differential or single-ended if the VBB output is used. The signal is fanned out to 9 identical differential outputs. The E111A/L are specifically designed, modeled and produced with low skew as the key goal. Optimal design and layout serve to minimize gate to gate skew within a device, and empirical modeling is used to determine process control limits that ensure consistent tpd distributions from lot to lot. The net result is a dependable, guaranteed low skew device. To ensure that the tight 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 that nine pairs are used, it is necessary to terminate at least the output pairs on the same package side as the pair(s) being used on that side, in order to maintain minimum skew. Failure to do this will result in small degradations of propagation delay (on the order of 10-20ps) of the output(s) being used which, while not being catastrophic to most designs, will mean a loss of skew margin. The E111A/L, as with most other ECL devices, can be operated from a positive VCC supply in PECL mode. This allows the E111A/L to be used for high performance clock distribution in +5V/+3.3V systems. Designers can take advantage of the E111A/L's performance to distribute low skew clocks across the backplane or the board. In a PECL environment, series or Thevenin line terminations are typically used as they require no additional power supplies. For systems incorporating GTL, parallel termination offers the lowest power by taking advantage of the 1.2V supply as terminating voltage.
BLOCK DIAGRAM
Q0 Q0 Q1 Q1 Q2 Q2 Q3 Q3 IN IN Q4 Q4 Q5 Q5 Q6 Q6 Q7 Q7 Q8
VBB
Q8
Rev.: F
Amendment: /0 October, 1998
1
Rev. Date:
Micrel
ClockWorksTM SY10E111A/L SY100E111A/L
PIN CONFIGURATION
Q1 VCCO
PIN NAMES
Pin
Q2 Q1 Q2
Function Differential Input Pair Differential Outputs VBB Output VCC to Output
Q0
Q0
IN, IN Q0, Q0 -- Q8, Q8
25 24 23 22 21 20 19
VEE NC IN VCC IN VBB NC
26 27 28 1 2 3 4 5 6 7 8 9 10 11
18 17
Q3 Q3 Q4 VCCO Q4 Q5 Q5
VBB VCCO
PLCC TOP VIEW J28-1
16 15 14 13 12
Q8 Q8 Q7 VCCO
Q7
ECL DC ELECTRICAL CHARACTERISTICS(1)
VEE = VEE (Min.) to VEE (Max.); VCC = GND
TA = -40C Symbol VOH Parameter Min. Typ. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max. -890 -880 Min. -1020 -1025 Output HIGH Voltage 10EL -1080 100EL -1085 Output LOW Voltage 10EL -1950 100EL -1830 Input HIGH Voltage 10EL -1230 100EL -1165 Input LOW Voltage 10EL -1950 100EL -1810 Output Reference Voltage 10EL 100EL Input HIGH Current Input LOW Current 10EL 100EL Power Supply Current 10EL 100EL -1.43 -1.38 -- 0.5 0.5 35 35 TA = 0C Typ. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max. -840 -880 TA = +25C Min. -980 -1025 Typ. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max. -810 -880 TA = +85C Min. -910 -1025 Typ. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max. -720 -880 mV -1650 -1950 -1550 -1810 -890 -880 -1170 -1165 -1630 -1950 -1620 -1810 -840 -880 -1130 -1165 -1630 -1950 -1620 -1810 -810 -880 -1060 -1165 -1595 -1620 mV -720 -880 mV -1500 -1950 -1475 -1810 -1.30 -1.26 150 -- -- 65 65 -1.38 -1.38 -- 0.5 0.5 35 35 -1480 -1950 -1475 -1810 -1.27 -1.26 150 -- -- 65 65 -1.35 -1.38 -- 0.5 0.5 35 35 -1480 -1950 -1475 -1810 -1.25 -1.26 150 -- -- 65 65 -1.31 -1.38 -- 0.3 0.5 35 35 -1445 -1475 V -1.19 -1.26 150 -- -- mA 65 75 A A Unit mV
VOL
VIH
VIL
VBB
IIH IIL
IEE
NOTE: 1. Parametric values specified at:
5 volt Power Supply Range 3 volt Power Supply Range
Q6 Q6
100E111A Series: 10E111A Series 10/100E111L Series:
-4.2V to -5.5V. -4.75V to -5.5V. -3.0V to -3.8V.
2
Micrel
ClockWorksTM SY10E111A/L SY100E111A/L
3.3V PECL DC ELECTRICAL CHARACTERISTICS(1)
VCC = +3.0V to +3.8V, VEE = GND
TA = -40C Symbol VOH Parameter Min. Typ.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- --
TA = 0C Min.
2280 2275 1350 1490 2130 2135 1350 1490 1.92 1.92 -- 0.5 0.5 -- --
TA = +25C Max.
2460 2420 1670 1680 2460 2420 1820 1825 2.03 2.04 150 -- -- 66 66
TA = +85C Min.
2390 2275 1350 1490 2240 2135 1350 1490 1.99 1.92 -- 0.3 0.5 -- --
Max.
2110 2120 1650 1750 2410 2420 1800 1825 2.00 2.04 150 -- -- 66 66
Typ.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Min.
2320 2275 1350 1490 2170 2135 1350 1490 1.95 1.92 -- 0.5 0.5 -- --
Typ.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Max.
2490 2420 1670 1680 2490 2420 1820 1825 2.05 2.04 150 -- -- 66 66
Typ.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Max.
2580 2420
Unit
mV
Output HIGH Voltage(2) 10EL 2220 100EL 2215 Output LOW Voltage(2) 10EL 100EL Input HIGH Voltage(2) 10EL 100EL Input LOW Voltage(2) 10EL 100EL Output Reference Voltage(2) 10EL 100EL Input HIGH Current Input LOW Current 10EL 100EL Power Supply Current 10EL 100EL 0.5 0.5 -- -- 1350 1470 2070 2135 1350 1490 1.87 1.92 --
VOL
mV 1705 1680 mV 2580 2420 mV 1855 1825 V 2.11 2.04 150 -- -- mA 66 78 A A
VIH
VIL
VBB
IIH IIL
IEE
NOTES: 1. Parametric values specified at: 3 volt Power Supply Range 10/100E111L Series: 2. These values are for VCC = 3.3V. Level specifications will vary 1:1 with VCC.
+3.0V to +3.8V.
5V PECL DC ELECTRICAL CHARACTERISTICS(1)
VCC = VCC (Min.) to VCC (Max.); VEE = GND
TA = -40C Symbol
VOH
TA = 0C Min.
3980 3975 3050 3190 3830 3835 3050 3190 3.62 3.62 -- 0.5 0.5 -- --
TA = +25C Max.
4160 4120 3370 3380 4160 4120 3520 3525 3.73 3.74 150 -- -- 66 66
TA = +85C Min.
4090 3975 3050 3190 3940 3835 3050 3190 3.69 3.62 -- 0.3 0.5 -- --
Parameter
Output HIGH Voltage 10EL 100EL Output LOW Voltage(2) 10EL 100EL Input HIGH Voltage(2) 10EL 100EL Input LOW Voltage(2) 10EL 100EL Output Reference Voltage(2) 10EL 100EL Input HIGH Current Input LOW Current 10EL 100EL Power Supply Current 10EL 100EL
(2)
Min.
3920 3915 3050 3170 3770 3835 3050 3190 3.57 3.62 -- 0.5 0.5 -- --
Typ.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Max.
4110 4120 3350 3450 4110 4120 3500 3525 3.70 3.74 150 -- -- 66 66
Typ.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Min.
4020 3975 3050 3190 3870 3835 3050 3190 3.65 3.62 -- 0.5 0.5 -- --
Typ.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Max.
4190 4120 3370 3380 4190 4120 3520 3525 3.75 3.74 150 -- -- 66 66
Typ.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Max.
4280 4120
Unit
mV
VOL
mV 3405 3380 mV 4280 4120 mV 3555 3525 V 3.81 3.74 150 -- -- mA 66 78 A A
VIH
VIL
VBB
IIH IIL
IEE
NOTES: 1. Parametric values specified at:
5 volt Power Supply Range
100E111A Series: 10E111A Series
+4.2V to +5.5V. +4.75V to +5.5V.
2. These values are for VCC = 5V. Level specifications will vary 1:1 with VCC.
3
Micrel
ClockWorksTM SY10E111A/L SY100E111A/L
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND
TA = -40C Symbol tPLH tPHL tskew VPP VCMR tr tf Parameter Propagation Delay to Output IN (differential)(2) IN (single-ended)(3) Within-Device Skew(4) Part-to-Part Skew (Diff.) Minimum Input Swing(5) Common Mode Rise/Fall Times 20% to 80% Range(6) Min. Typ. Max. 380 280 -- -- 250 -1.5 200 -- -- -- -- -- -- -- 680 780 75 250 -- -0.4 650 TA = 0C TA = +25C TA = +85C ps 430 330 -- -- 250 -1.5 200 -- -- -- -- -- -- -- 630 730 50 200 -- -0.4 600 430 330 -- -- 250 -1.5 200 -- -- -- -- -- -- -- 630 730 50 200 -- -0.4 600 430 330 -- -- 250 -1.5 200 -- -- -- -- -- -- -- 630 730 50 200 -- -0.4 600 ps mV V ps
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
NOTES: 1. Parametric values specified at:
2. 3. 4. 5. 6.
100E111A Series: -4.2V to -5.5V. 10E111A Series -4.75V to -5.5V. 3 volt Power Supply Range 10/100E111L Series: -3.0V to -3.8V. 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. 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. The within-device skew is defined as the worst case difference between any two similar delay paths within a single device. 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 E111A/L as a differential input as low as 50mV will still produce full ECL levels at the output. VCMR is defined as the range within 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). For PECL operation: VCMR (max) = VCC - |VCMR (max)| and VCMR (min) = VCC - |VCMR (min)|
5 volt Power Supply Range
PRODUCT ORDERING CODE
5V
Ordering Code SY10E111AJC SY10E111AJCTR SY100E111AJC SY100E111AJCTR Package Type J28-1 J28-1 J28-1 J28-1 Operating Range Commercial Commercial Commercial Commercial VEE Range (V) -4.75 to -5.5 -4.75 to -5.5 -4.2 to -5.5 -4.2 to -5.5
5V
Ordering Code SY10E111AJI SY10E111AJITR SY100E111AJI SY100E111AJITR Package Type J28-1 J28-1 J28-1 J28-1 Operating Range Industrial Industrial Industrial Industrial VEE Range (V) -4.75 to -5.5 -4.75 to -5.5 -4.2 to -5.5 -4.2 to -5.5
3.3V
SY10E111LJC SY10E111LJCTR SY100E111LJC SY100E111LJCTR J28-1 J28-1 J28-1 J28-1 Commercial Commercial Commercial Commercial -3.0 to -3.8 -3.0 to -3.8 -3.0 to -3.8 -3.0 to -3.8
3.3V
SY10E111LJI SY10E111LJITR SY100E111LJI SY100E111LJITR J28-1 J28-1 J28-1 J28-1 Industrial Industrial Industrial Industrial -3.0 to -3.8 -3.0 to -3.8 -3.0 to -3.8 -3.0 to -3.8
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Micrel
ClockWorksTM SY10E111A/L SY100E111A/L
28 LEAD PLCC (J28-1)
Rev. 03
MICREL-SYNERGY
TEL
3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA
FAX
+ 1 (408) 980-9191
+ 1 (408) 914-7878
WEB
http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. (c) 2000 Micrel Incorporated
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