MICREL SY100E111JI

Micrel, Inc.
SY10E111
SY100E111
SY10E111
1:9 DIFFERENTIAL CLOCK
DRIVER WITH ENABLE
FEATURES
SY100E111
DESCRIPTION
■
■
■
■
■
■
■
Low skew
Extended 100E VEE range of –4.2V to –5.5V
Guaranteed skew limits
Differential design
VBB output
Enable input
Fully compatible with industry standard 10KH, 100K
I/O levels
■ 75KΩ input pulldown resistors
■ Fully compatible with ON Semiconductor
MC10E/100E111
■ Available in 28-pin PLCC package
The SY10/100E111 are low skew 1-to-9 differential
drivers designed for clock distribution in new, highperformance ECL systems. They accept one differential or
single-ended input, with V BB used for single-ended
operation. The signal is fanned out to nine 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 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 E111 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. ln
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.
The VBB output is intended for use as a reference
voltage for single-ended reception of ECL signals to that
device only. When using V BB for this purpose, it is
recommended that VBB is decoupled to VCC via a 0.01µF
capacitor.
BLOCK DIAGRAM
Q0
Q0
Q1
Q1
Q2
Q2
Q3
Q3
IN
Q4
IN
Q4
Q5
EN
PIN NAMES
Q5
Q6
Pin
Q6
VBB
M9999-032006
[email protected] or (408) 955-1690
Function
IN, /IN
Differential Input Pair
Q7
/EN
Enable Input
Q7
Q0, /Q0 — Q8, /Q8
Differential Outputs
Q8
VBB
VBB Output
Q8
VCCO
VCC to Output
Rev.: E
1
Amendment: /0
Issue Date: March 2006
SY10E111
SY100E111
Micrel, Inc.
Q2
/Q2
Ordering Information(1)
/Q1
/Q0
Q1
VCCO
Q0
PACKAGE/ORDERING INFORMATION
25 24 23 22 21 20 19
VEE
/EN
IN
VCC
26
18
Q3
27
17
28
16
/Q3
Q4
VCCO
/Q4
PLCC
TOP VIEW
J28-1
1
15
/IN
VBB
2
3
13
NC
4
12
9
Q7
8
Q5
/Q5
10 11
/Q6
Q6
7
VCCO
6
/Q8
Q8
/Q7
5
14
Part Number
Package
Type
Operating
Range
Package
Marking
Lead
Finish
SY10E111JI
J28-1
Industrial
SY10E111JI
Sn-Pb
SY10E111JITR(2)
J28-1
Industrial
SY10E111JI
Sn-Pb
SY100E111JI
J28-1
Industrial
SY100E111JI
Sn-Pb
SY100E111JITR(2)
J28-1
Industrial
SY100E111JI
Sn-Pb
SY10E111JC
J28-1
Commercial
SY10E111JC
Sn-Pb
SY10E111JCTR(2)
J28-1
Commercial
SY10E111JC
Sn-Pb
SY100E111JC
J28-1
Commercial
SY100E111JC
Sn-Pb
SY100E111JCTR(2)
J28-1
Commercial
SY100E111JC
Sn-Pb
SY10E111JY(3)
J28-1
Industrial
SY10E111JY with
Pb-Free bar-line indicator
Matte-Sn
SY10E111JYTR(2, 3)
J28-1
Industrial
SY10E111JY with
Pb-Free bar-line indicator
Matte-Sn
SY100E111JY(3)
J28-1
Industrial
SY100E111JY with
Pb-Free bar-line indicator
Matte-Sn
SY100E111JYTR(2, 3)
J28-1
Industrial
SY100E111JY with
Pb-Free bar-line indicator
Matte-Sn
28-Pin PLCC (J28-1)
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.
TIMING DIAGRAMS
IN
IN
/IN
IN
/IN
/IN
ts
tr
tH
/EN
50%
/EN
50%
/EN
75 mV
50%
75 mV
/Q
/Q
/Q
Q
Q
Q
75 mV
Figure 1. Set-up Time
M9999-032006
[email protected] or (408) 955-1690
75 mV
Figure 2. Hold Time
2
Figure 3. Release Time
SY10E111
SY100E111
Micrel, Inc.
DC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND
TA = –40°C
Symbol
VBB
Parameter
Min.
Typ.
TA = 0°C
Max.
Output Reference
Voltage
10E
100E
IIH
Input HIGH Current
IEE
Power Supply
Current
TA = +25°C
Max.
Min.
Typ.
TA = +85°C
Min.
Typ.
Max.
–1.38
–1.38
—
—
—
—
150
—
—
150
—
—
48
48
60
60
—
—
48
48
60
60
Min.
Typ.
Max.
—
—
–1.19
–1.26
—
—
150
—
—
48
55
60
69
Unit
V
–1.27 –1.35
–1.26 –1.38
—
—
–1.25 –1.31
–1.26 –1.38
µA
mA
10E
100E
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND
TA = –40°C
Symbol
Parameter
Min.
Typ.
Max.
TA = 0°C
Min.
Typ.
TA = +25°C
Max.
Min.
Typ.
TA = +85°C
Max.
Min.
Typ.
Max.
Unit
Propagation Delay to
Output
IN (differential)(1)
IN (single-ended)(2)
Enable(3)
Disable(3)
430
330
450
450
—
—
—
—
630
730
850
850
430
330
450
450
—
—
—
—
630
730
850
850
430
330
450
450
—
—
—
—
630
730
850
850
tSKEW
Within-Device Skew(4)
—
25
50
—
25
50
—
25
50
ps
tS
Set-up Time
/EN to IN(5)
200
0
—
200
0
—
200
0
—
ps
Hold Time
IN to /EN(6)
0
–200
—
0
–200
—
0
–200
—
ps
tPD
tH
tR
Release Time
/EN to IN(7)
ps
300
100
—
300
100
—
300
100
—
ps
Minimum Input
Swing(8)
250
—
—
250
—
—
250
—
—
mV
VCMR
Common Mode
Range(9)
–1.6
—
–0.4
–1.6
—
–0.4
–1.6
—
–0.4
V
tr
tf
Rise/Fall Times
(20% to 80%)
275
375
600
275
375
600
275
375
600
ps
VPP
Notes:
1. 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.
2. 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.
3. 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).
4. The within-device skew is defined as the worst case difference between any two similar delay paths within a single device.
5. 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).
6. 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).
7. 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).
8. 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
E111, as a differential input as low as 50mV will still produce full ECL levels at the output.
9. 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.).
M9999-032006
[email protected] or (408) 955-1690
3
SY10E111
SY100E111
Micrel, Inc.
28-PIN PLCC (J28-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131
TEL
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
USA
http://www.micrel.com
The information furnished by Micrel in this data sheet 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.
© 2006 Micrel, Incorporated.
M9999-032006
[email protected] or (408) 955-1690
4