MICREL SY10EL15ZG

Micrel, Inc.
1:4 CLOCK
DISTRIBUTION
Precision Edge®
SY10EL15
Precision SY100EL15
Edge®
SY10EL15
SY100EL15
FEATURES
■
■
■
■
■
50ps output-to-output skew
Synchronous enable/disable
Multiplexed clock input
75KΩ internal input pull-down resistors
Available in 16-pin SOIC package
Precision Edge®
DESCRIPTION
The SY10/100EL15 are low skew 1:4 clock distribution
chips designed explicitly for low skew clock distribution
applications. The device can be driven by either a
differential or single-ended ECL or, if positive power
supplies are used, PECL input signal. If a single-ended
input is to be used the VBB output should be connected
to the CLK input and bypassed to VCC via a 0.01µF
capacitor. The VBB output is designed to act as the
switching reference for the input of the EL15 under singleended input conditions, as a result this pin can only
source/sink up to 0.5mA of current.
The EL15 features a multiplexed clock input to allow
for the distribution of a lower speed scan or test clock
along with the high speed system clock. When LOW (or
left open and pulled LOW by the input pull-down resistor)
the SEL pin will select the differential clock input.
The common enable (EN) is synchronous so that the
outputs will only be enabled/disabled when they are
already in the LOW state. This avoids any chance of
generating a runt clock pulse when the device is enabled/
disabled as can happen with an asynchronous control.
The internal flip flop is clocked on the falling edge of the
input clock, therefore all associated specification limits
are referenced to the negative edge of the clock input.
Precision Edge is a registered trademark of Micrel, Inc.
M9999-031006
[email protected] or (408) 955-1690
Rev.: H
1
1
Amendment: /0
Issue Date: March 2006
Precision Edge®
SY10EL15
SY100EL15
Micrel, Inc.
PACKAGE/ORDERING INFORMATION
Ordering Information(1)
VCC
16
EN SCLK CLK CLK VBB
SEL VEE
15
10
14
13
1
12
11
9
0
D
Q
1
2
3
4
5
6
7
8
Q0
Q0
Q1
Q1
Q2
Q2
Q3
Q3
16-Pin Narrow SOIC (Z8-1)
Part Number
Package
Type
Operating
Range
Package
Marking
Lead
Finish
SY10EL15ZC
Z16-2
Commercial
SY10EL15ZC
Sn-Pb
SY10EL15ZCTR(2)
Z16-2
Commercial
SY10EL15ZC
Sn-Pb
SY100EL15ZC
Z16-2
Commercial
SY100EL15ZC
Sn-Pb
SY100EL15ZCTR(2)
Z16-2
Commercial
SY100EL15ZC
Sn-Pb
SY10EL15ZI
Z16-2
Industrial
SY10EL15ZI
Sn-Pb
SY10EL15ZITR(2)
Z16-2
Industrial
SY10EL15ZI
Sn-Pb
SY100EL15ZI
Z16-2
Industrial
SY100EL15ZI
Sn-Pb
SY100EL15ZITR(2)
Z16-2
Industrial
SY100EL15ZI
Sn-Pb
SY10EL15ZG(3)
Z16-2
Industrial
SY10EL15ZG with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
SY10EL15ZGTR(2, 3)
Z16-2
Industrial
SY10EL15ZG with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
SY100EL15ZG(3)
Z16-2
Industrial
SY100EL15ZG with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
SY100EL15ZGTR(2, 3)
Z16-2
Industrial
SY100EL15ZG with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
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.
PIN NAMES
TRUTH TABLE
Pin
Function
CLK
SCLK
SEL
EN
Q
CLK
Differential Clock Inputs
L
X
L
L
L
SCLK
Synchronous Clock Input
H
X
L
L
H
EN
Synchronous Enable
X
L
H
L
L
SEL
Clock Select Input
X
H
H
L
H
VBB
Reference Output
X
X
X
H
L*
Q0-3
Differential Clock Outputs
M9999-031006
[email protected] or (408) 955-1690
* On next negative transition of CLK or SCLK
2
Precision Edge®
SY10EL15
SY100EL15
Micrel, Inc.
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Value
Unit
VEE
Power Supply (VCC = 0V)
–8.0 to 0
VDC
VI
Input Voltage (VCC = 0V)
0 to –6.0
VDC
IOUT
Output Current
–Continuous
–Surge
50
100
mA
TLEAD
Lead Temperature Range (soldering, 20sec.)
+260
°C
TA
Operating Temperature Range
–40 to +85
°C
VEE
Operating Range(1),(2)
–5.7 to –4.2
V
NOTES:
1. Absolute maximum rating, beyond which, device life may be impaired, unless otherwise specified on an individual data sheet.
2. Parametric values specified at:
100EL15 Series:
–4.2V to –5.5V.
10EL15 Series
–4.75V to –5.5V.
10EL DC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND(1)
TA = –40°C
Symbol
Parameter
TA = 0°C
TA = +25°C
TA = +85°C
Min.
Max.
Min.
Max.
Min.
Typ.
Max.
Min.
Max.
Unit
VOH
Output HIGH Voltage
–1080
–890
–1020
–840
–980
—
–810
–910
–720
mV
VOL
Output LOW Voltage
–1950
–1650
–1950
–1630
–1950
—
–1630
–1950
–1595
mV
VIH
Input HIGH Voltage
–1230
–890
–1170
–840
–1130
—
–810
–1060
–720
mV
VIL
Input LOW Voltage
–1950
–1500
–1950
–1480
–1950
—
–1480
–1950
–1445
mV
IIH
Input High Current
—
150
—
150
—
—
150
—
150
µA
IIL
Input LOW Current
0.5
—
0.5
—
0.5
—
—
0.5
—
µA
IEE
Power Supply Current
—
35
—
35
—
25
35
—
38
mA
VBB
Output Reference Voltage
–1.38
–1.26
–1.38
–1.26
–1.38
—
–1.26
–1.38
–1.26
V
NOTE:
1. 10EL circuits are designed to meet the DC specifications shown in the table after thermal equilibrium has been established. The circuit is in a test socket
or mounted on a printed circuit board and transverse airflow greater than 500lfpm is maintained. Outputs are terminated through a 50Ω resistor to –2.0V
except where otherwise specified on the individual data sheets.
M9999-031006
[email protected] or (408) 955-1690
3
Precision Edge®
SY10EL15
SY100EL15
Micrel, Inc.
100EL DC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND(1)
TA = –40°C
Symbol
Parameter
TA = 0°C
TA = +25°C
TA = +85°C
Min.
Max.
Min.
Max.
Min.
Typ.
Max.
Min.
Max.
Unit
VOH
Output HIGH Voltage(2)
–1085
–880
–1025
–880
–1025
–955
–880
–1025
–880
mV
VOL
Output LOW
Voltage(2)
–1830
–1555
–1810
–1620
–1810
–1705
–1620
–1810
–1620
mV
Output HIGH
Voltage(3)
–1095
—
–1035
—
–1035
—
—
–1035
—
mV
VOLA
Output LOW
Voltage(3)
—
–1555
—
–1610
—
—
–1610
—
–1610
mV
VIH
Input HIGH Voltage
–1165
–880
–1165
–880
–1165
—
–880
–1165
–880
mV
VIL
Input LOW Voltage
–1810
–1475
–1810
–1475
–1810
—
–1475
–1810
–1475
mV
IIH
Input High Current
—
150
—
150
—
—
150
—
150
µA
0.5
—
0.5
—
0.5
—
—
0.5
—
µA
—
35
—
35
—
25
35
—
38
mA
–1.38
–1.26
–1.38
–1.26
–1.38
—
–1.26
–1.38
–1.26
V
VOHA
Current(4)
IIL
Input LOW
IEE
Power Supply Current
VBB
Output Reference Voltage
NOTES:
1. This table replaces the three traditionally seen in ECL 100K data books. The same DC parameter values at VEE = –4.5V now apply across the full VEE
range of –4.2V to –5.5V. Outputs are terminated through a 50Ω resistor to –2.0V except where otherwise specified on the individual data sheets.
2. VIN = VIH(Max) or VIL(Min).
3. VIN = VIH(Min) or VIL(Max).
4. VIN = VIL(Max).
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min) to VEE (Max); VCC = GND
TA = –40°C
Symbol
tPD
Parameter
Propagation Delay
CLK to Q (Diff)
CLK to Q (SE)
SCLK to Q
TA = 0°C
TA = +25°C
TA = +85°C
Min.
Max.
Min.
Max.
Min.
Typ.
Max.
Min.
Max.
Unit
460
410
410
660
710
710
470
420
420
670
720
720
470
420
420
—
—
—
670
720
720
500
450
470
700
750
750
—
—
200
50
—
—
200
50
—
—
—
—
200
50
—
—
200
50
ps
ps
tskew
Part-to-Part Skew(1)
Within-Device Skew
tS
Setup Time EN
150
—
150
—
150
—
—
150
—
ps
tH
Hold Time EN
400
—
400
—
400
—
—
400
—
ps
VPP
Minimum Input
Swing
CLK
250
—
250
—
250
—
—
250
—
mV
VCMR
Common Mode
Range
CLK
–2.0
–0.4
–2.0
–0.4
–2.0
—
–0.4
–2.0
–0.4
V
tr
tf
Output Rise/Fall Times Q
(20% – 80%)
—
—
325
575
325
—
575
325
575
ps
NOTE:
1. Skews are specified for identical LOW-to-HIGH or HIGH-to-LOW
transitions.
M9999-031006
[email protected] or (408) 955-1690
4
Precision Edge®
SY10EL15
SY100EL15
Micrel, Inc.
16-PIN SOIC .150" WIDE (Z16-2)
Rev. 02
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 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.
© 2006 Micrel, Incorporated.
M9999-031006
[email protected] or (408) 955-1690
5