Datasheet SY10E111LE, SY10E111AE, SY100E111LE, SY100E111AE Datasheet (MICREL)

5V/3.3V 1:9 DIFFERENTIAL
CLOCK DRIVER (w/ENABLE)

DESCRIPTIONFEATURES

ClockWorks™

SY10E111AE/LE

SY100E111AE/LE

■ 5V and 3.3V power supply options

■ 200ps part-to-part skew

■ 50ps output-to-output skew

■ Differential design

■ VBB output

■ Enable Input

■ Voltage and temperature compensated outputs

■ 75KΩ input pulldown resistors

■ Fully compatible with Motorola MC10/100E111

■ Available in 28-pin PLCC package

BLOCK DIAGRAM

Q

0

Q

0

Q

1

Q

1

Q

2

Q

2

Q

3

Q

3

V

IN
IN

EN

BB

Q

4

Q

4

Q

5

Q

5

Q

6

Q

6

Q

7

Q

7

Q

8

Q

8

The SY10/100E111AE/LE are low skew 1-to-9 differential
drivers designed for clock distribution in mind. The SY10/
100E111AE/LE'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. An enable input is
also provided such that a logic HIGH disables the device by
forcing all Q outputs LOW and all Q outputs HIGH.

The E111AE/LE is 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 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 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 E111AE/LE, as with most other ECL devices, can
be operated from a positive VCC supply in PECL mode.
This allows the E111AE/LE to be used for high performance
clock distribution in +5V/+3.3V systems. Designers can
take advantage of the E111AE/LE'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.

Rev.: D Amendment: /0

1

Rev. Date: October, 1998

Micrel

ClockWorks™

SY10E111AE/LE

SY100E111AE/LE

PIN CONFIGURATION

PIN NAMES

Pin Function

IN, IN Differential Input Pair
EN Enable Input
Q0, Q0 — Q8, Q

8

Differential Outputs

VBB VBB Output

CCO VCC to Output

V

V

V

V

EE

EN

IN

CC

IN

BB

NC

0

1

CCO

V

Q0Q

Q

25 24 23 22 21 20 19
26
27
28

1
2
3
4

567891011

TOP VIEW

8

8

Q

Q

PLCC
J28-1

7

Q

CCO

V

2

2

1

Q

Q

Q

18

Q

3

17

Q

3

16

Q

4

V

Q
Q
Q

CCO

4
5
5

15
14
13
12

6

7

Q6Q

Q

ECL DC ELECTRICAL CHARACTERISTICS

VEE = VEE (Min.) to VEE (Max.); VCC = GND

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

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

OH Output HIGH Voltage mV

V

10EL –1080 — –890 –1020 — –840 –980 — –810 –910 — –720

100EL –1085 — –880 –1025 — –880 –1025 — –880 –1025 — –880

V

OL Output LOW Voltage mV

10EL –1950 — –1650 –1950 — –1630 –1950 — –1630 –1950 — –1595

100EL –1830 — –1550 –1810 — –1620 –1810 — –1620 –1810 — –1620

V

IH Input HIGH Voltage mV

10EL –1230 — –890 –1170 — –840 –1130 — –810 –1060 — –720

100EL –1165 — –880 –1165 — –880 –1165 — –880 –1165 — –880

V

IL Input LOW Voltage mV

10EL –1950 — –1500 –1950 — –1480 –1950 — –1480 –1950 — –1445

100EL –1810 — –1475 –1810 — –1475 –1810 — –1475 –1810 — –1475

V

BB Output Reference V

Voltage 10EL –1.43 — –1.30 –1.38 — –1.27 –1.35 — –1.25 –1.31 — –1.19

100EL –1.38 — –1.26 –1.38 — –1.26 –1.38 — –1.26 –1.38 — –1.26
IIH Input HIGH Current — — 150 — — 150 — — 150 — — 150 µA
I

IL Input LOW Current µA

10EL 0.5 — — 0.5 — — 0.5 — — 0.3 — —

100EL 0.5 — — 0.5 — — 0.5 — — 0.5 — —
I

EE Power Supply Current mA

10EL — — 66 — — 66 — — 66 — — 66

100EL — — 66 — — 66 — — 66 — — 78

NOTE:

1. Parametric values specified at: 5 volt Power Supply Range 100E111AE Series: -4.2V to -5.5V.
10E111AE Series -4.75V to -5.5V.

3 volt Power Supply Range 10/100E111LE Series: -3.0V to -3.8V.

2

Micrel

ClockWorks™

SY10E111AE/LE

SY100E111AE/LE

3.3V PECL DC ELECTRICAL CHARACTERISTICS

(1)

VCC = +3.0V to +3.8V, VEE = GND

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

OL Output LOW Voltage

V

IH Input HIGH Voltage

V

IL Input LOW Voltage

V

BB Output Reference V

V

Voltage

(2)

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

IL Input LOW Current µA

EE Power Supply Current mA

I

NOTES:

1. Parametric values specified at: 3 volt Power Supply Range 10/100E111LE Series: +3.0V to +3.8V.

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

(2)

10EL 2220 — 2110 2280 — 2460 2320 — 2490 2390 — 2580

100EL 2215 — 2120 2275 — 2420 2275 — 2420 2275 — 2420

(2)

10EL 1350 — 1650 1350 — 1670 1350 — 1670 1350 — 1705

100EL 1470 — 1750 1490 — 1680 1490 — 1680 1490 — 1680

(2)

10EL 2070 — 2410 2130 — 2460 2170 — 2490 2240 — 2580

100EL 2135 — 2420 2135 — 2420 2135 — 2420 2135 — 2420

(2)

10EL 1350 — 1800 1350 — 1820 1350 — 1820 1350 — 1855

100EL 1490 — 1825 1490 — 1825 1490 — 1825 1490 — 1825

10EL 1.87 — 2.00 1.92 — 2.03 1.95 — 2.05 1.99 — 2.11

100EL 1.92 — 2.04 1.92 — 2.04 1.92 — 2.04 1.92 — 2.04

10EL 0.5 — — 0.5 — — 0.5 — — 0.3 — —

100EL 0.5 — — 0.5 — — 0.5 — — 0.5 — —

10EL — — 66 — — 66 — — 66 — — 66

100EL — — 66 — — 66 — — 66 — — 78

mV

mV

mV

mV

5V PECL DC ELECTRICAL CHARACTERISTICS

(1)

VCC = VCC (Min.) to VCC (Max.); VEE = GND

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

OL Output LOW Voltage

V

IH Input HIGH Voltage

V

IL Input LOW Voltage

V

BB Output Reference V

V

Voltage

(2)

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

IL Input LOW Current µA

I

EE Power Supply Current mA

I

NOTES:

1. Parametric values specified at: 5 volt Power Supply Range 100E111AE Series: +4.2V to +5.5V.

2. These values are for VCC = 5V. Level specifications will vary 1:1 with VCC.

(2)

10EL 3920 — 4110 3980 — 4160 4020 — 4190 4090 — 4280

100EL 3915 — 4120 3975 — 4120 3975 — 4120 3975 — 4120

(2)

10EL 3050 — 3350 3050 — 3370 3050 — 3370 3050 — 3405

100EL 3170 — 3450 3190 — 3380 3190 — 3380 3190 — 3380

(2)

10EL 3770 — 4110 3830 — 4160 3870 — 4190 3940 — 4280

100EL 3835 — 4120 3835 — 4120 3835 — 4120 3835 — 4120

(2)

10EL 3050 — 3500 3050 — 3520 3050 — 3520 3050 — 3555

100EL 3190 — 3525 3190 — 3525 3190 — 3525 3190 — 3525

10EL 3.57 — 3.70 3.62 — 3.73 3.65 — 3.75 3.69 — 3.81

100EL 3.62 — 3.74 3.62 — 3.74 3.62 — 3.74 3.62 — 3.74

10EL 0.5 — — 0.5 — — 0.5 — — 0.3 — —

100EL 0.5 — — 0.5 — — 0.5 — — 0.5 — —

10EL — — 66 — — 66 — — 66 — — 66

100EL — — 66 — — 66 — — 66 — — 78

10E111AE Series +4.75V to +5.5V.

mV

mV

mV

mV

3

Micrel

ClockWorks™

SY10E111AE/LE

SY100E111AE/LE

AC ELECTRICAL CHARACTERISTICS

(1)

VEE = VEE (Min.) to VEE (Max.); VCC = GND

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

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

t

PLH Propagation Delay to Output ps

tPHL IN (differential)

IN (single-ended)

(4)

Enable
Disable

t

skew Within-Device Skew

Part-to-Part Skew (Diff.) — — 250 — — 200 — — 200 — — 200
tS Set-up Time, EN to IN
tH Hold Time, IN to EN
tR Release Time, EN to IN
VPP Minimum Input Swing
VCMR Common Mode Range
t

r Rise/Fall Times 200 — 650 200 — 600 200 — 600 200 — 600 ps

tf 20% to 80%

NOTES:

1. Parametric values specified at: 5 volt Power Supply Range 100E111AE Series: -4.2V to -5.5V.

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. Enable is defined as the propagation delay from the 50% point of a negative transition on EN to the 50% point of a positive transition on Q (or a

negative transition on Q). Disable is defined as the propagation delay from the 50% point of a positive transition on EN to the 50% point of a
negative transition on Q (or a positive transition on Q).

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

6. The set-up time is the minimum time that EN must be asserted prior to the next transition of IN/IN to prevent an output response greater than

±75mV to that IN/IN transition (see Figure 1).

7. The hold time is the minimum time that EN must remain asserted after a negative going IN or a positive going IN to prevent an output response

greater than ±75mV to that IN/IN transition (see Figure 2).

8. The release time is the minimum time that EN must be de-asserted prior to the next IN/IN transition to ensure an output response that meets the

specified IN to Q propagation delay and output transition times (see Figure 3).

9. 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 E111AE/LE, as a differential input as low as 50mV will still produce full ECL levels at the output.

10. 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

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

3 volt Power Supply Range 10/100E111LE Series: -3.0V to -3.8V.

VCMR (min) = VCC – |VCMR (min)|

380 — 680 430 — 630 430 — 630 430 — 630
280 — 780 330 — 730 330 — 730 330 — 730
400 — 900 450 — 850 450 — 850 450 — 850
400 — 900 450 — 850 450 — 850 450 — 850

— — 75 — — 50 — — 50 — — 50 ps

250 — 0 200 0 — 200 0 — 200 0 — ps

0 — –200 0 –200 — 0 –200 — 0 –200 — ps
350 — 100 300 100 — 300 100 — 300 100 — ps
250 — — 250 — — 250 — — 250 — — mV

–1.5 — –0.4 –1.5 — –0.4 –1.5 — –0.4 –1.5 — –0.4 V

10E111AE Series -4.75V to -5.5V.

4

Micrel

IN

t

r

IN

EN

Q

Q

50%

TIMING DIAGRAMS

ClockWorks™

SY10E111AE/LE

SY100E111AE/LE

IN

IN

EN

Q
Q

Figure 1. Set-up Time Figure 3. Release TimeFigure 2. Hold Time

t

s

50%

75 mV

75 mV

IN
IN

EN

Q
Q

t

h

50%

75 mV

75 mV

PRODUCT ORDERING CODE

5V

Ordering Package Operating VEE Range

Code Type Range (V)

SY10E111AEJC J28-1 Commercial -4.75 to -5.5
SY10E111AEJCTR J28-1 Commercial -4.75 to -5.5
SY100E111AEJC J28-1 Commercial -4.2 to -5.5
SY100E111AEJCTR J28-1 Commercial -4.2 to -5.5

3.3V

SY10E111LEJC J28-1 Commercial -3.0 to -3.8
SY10E111LEJCTR J28-1 Commercial -3.0 to -3.8
SY100E111LEJC J28-1 Commercial -3.0 to -3.8
SY100E111LEJCTR J28-1 Commercial -3.0 to -3.8

5V

Ordering Package Operating VEE Range

Code Type Range (V)

SY10E111AEJI J28-1 Industrial -4.75 to -5.5
SY10E111AEJITR J28-1 Industrial -4.75 to -5.5
SY100E111AEJI J28-1 Industrial -4.2 to -5.5
SY100E111AEJITR J28-1 Industrial -4.2 to -5.5

3.3V

SY10E111LEJI J28-1 Industrial -3.0 to -3.8
SY10E111LEJITR J28-1 Industrial -3.0 to -3.8
SY100E111LEJI J28-1 Industrial -3.0 to -3.8
SY100E111LEJITR J28-1 Industrial -3.0 to -3.8

5

Micrel

28 LEAD PLCC (J28-1)

ClockWorks™

SY10E111AE/LE

SY100E111AE/LE

Rev. 03

MICREL-SYNERGY 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA

TEL + 1 [phone] FAX + 1 [phone] 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.

© 2000 Micrel Incorporated

6