The SY10/100H641 are single supply, low skew
translating 1:9 clock drivers. Devices in the Micrel-
Synergy H600 translator series utilize the 28-lead PLCC
for optimal power pinning, signal flow-through and
electrical performance.
The devices feature a 24mA TTL output stage with
AC performance specified into a 50pF load capacitance.
A latch is provided on-chip. When LEN is LOW (or left
open, in which case it is pulled LOW by the internal pull-
downs), the latch is transparent. A HIGH on the enable
pin (EN) forces all outputs LOW.
The 10H version is compatible with MECL 10KH ECL
logic levels. The 100H version is compatible with 100K
levels.
DESCRIPTION
FEATURES
ClockWorksTM
SY10H641
SY100H641
s
Input frequencies up to 135MHz
s
PECL-to-TTL version of popular ECLinPS E111
s
Guaranteed low skew specification
s
Latched input
s
Differential internal design
s
V
BB
output VECL for single-ended operation
s
Single +5V supply
s
Reset/enable
s
Extra TTL and ECL power/ground pins
s
Choice of ECL compatibility: MECL 10KH (10Hxxx)
or 100K (100Hxxx)
s
Available in 28-pin PLCC package
SINGLE SUPPLY 1:9
PECL-TO-TTL
18
17
16
15
14
13
12
5
6
7
8
9
10 11
26
27
28
1
2
3
4
TOP VIEW
PLCC
25 24 23 22 21 20 19
V
T
Q
7
V
T
Q
8
G
T
Q
6
G
T
G
T
Q
5
V
T
Q
4
V
T
Q
3
G
T
Q
2
Q
1
V
T
Q
0
G
T
G
T
V
T
V
BB
D
V
E
LEN
G
E
D
EN
Rev.: D
Amendment: /0
Issue Date: March, 1999
PIN CONFIGURATION
BLOCK DIAGRAM
Pin
Function
G
T
TTL Ground (0V)
V
T
TTL V
CC
(+5.0V)
V
E
ECL V
CC
(+5.0V)
G
E
ECL Ground (0V)
D, D
Signal Input (PECL)
V
BB
V
BB
Reference Output (PECL)
Q
0
- Q
8
Signal Outputs (TTL)
EN
Enable Input (PECL)
LEN
Latch Enable Input (PECL)
PIN NAMES
D
Q0
Q1
Q2
Q3
V
BB
EN
D
Q4
Q5
Q6
Q7
Q8
LEN
D
Q
PECL Input
TTL Outputs
1
2
ClockWorksTM
SY10H641
SY100H641
Micrel
V
CC
AND C
LOAD
Ranges to meet duty cycle requirement: 0
C
T
A
85
C. Output duty cycle measured relative to 1.5V.
Symbol
Parameter
Min.
Typ.
Max.
Unit
Condition
P
W1
Ranges of V
CC
and C
L
to meet min.
V
CC
4.75
5.0
5.25
V
All Outputs
pulse width (HIGH or LOW) at
C
L
10
--
50
pF
f
OUT
40MHz
P
W
11
--
--
ns
P
W2
Ranges of V
CC
and C
L
to meet min.
V
CC
4.875
5.0
5.125
V
All Outputs
pulse width (HIGH or LOW) at
C
L
15
--
27
pF
f
OUT
50MHz
P
W
9.0
--
--
ns
TRUTH TABLE
D
LEN
EN
Q
L
L
L
L
H
L
L
H
X
H
L
Q
0
X
X
H
L
Symbol
Rating
Value
Unit
V
E
(ECL)
Power Supply
0.5 to +7.0
V
V
T
(TTL)
Voltage
0.5 to +7.0
V
I
(ECL)
Input Voltage
0.0 to V
EE
V
V
OUT
(TTL)
Disabled 3-State
0.0 to V
CCT
V
Output
I
OUT
(ECL)
Output Current
mA
- Continuous
50
- Surge
100
T
store
Storage Temperature
65 to +150
C
T
A
Operating Temperature
0 to +85
C
ABSOLUTE MAXIMUM RATINGS
(1)
NOTE:
1. Do not exceed.
TTL DC ELECTRICAL CHARACTERISTICS
V
T
= V
E
= 5.0V
5%
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
V
OH
Output HIGH Voltage
2.0
--
2.0
--
2.0
--
V
I
OH
= 15mA
V
OL
Output LOW Voltage
--
0.5
--
0.5
--
0.5
V
I
OL
= 24mA
I
OS
Output Short Circuit Current
100
225
100
225
100
225
mA
V
OUT
= 0V
DC ELECTRICAL CHARACTERISTICS
V
T
= V
E
= 5.0V
5%
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
I
EE
Power Supply Current
ECL
--
30
--
30
--
30
mA
V
E
Pin
I
CCH
TTL
--
30
--
30
--
30
Total all V
T
pins
I
CCL
--
35
--
35
--
35
3
ClockWorksTM
SY10H641
SY100H641
Micrel
V
T
= V
E
= 5.0V
5%
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
I
IH
Input HIGH Current
--
225
--
175
--
175
A
--
I
IL
Input LOW Current
0.5
--
0.5
--
0.5
--
A
--
V
IH
Input HIGH Voltage
(1)
3.835
4.120
3.835
4.120
3.835
4.120
V
V
E
= 5.0V
V
IL
Input LOW Voltage
(1)
3.190
3.525
3.190
3.525
3.190
3.525
V
V
E
= 5.0V
V
BB
Output Reference Voltage
(1)
3.620
3.740
3.620
3.740
3.620
3.740
V
V
E
= 5.0V
NOTE:
1. V
IH
, V
IL
and V
BB
are referenced to V
E
and will vary 1:1 with the power supply. The levels shown are for V
E
= +5.0V.
10H ECL DC ELECTRICAL CHARACTERISTICS
V
T
= V
E
= 5.0V
5%
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
I
IH
Input HIGH Current
--
225
--
175
--
175
A
--
I
IL
Input LOW Current
0.5
--
0.5
--
0.5
--
A
--
V
IH
Input HIGH Voltage
(1)
3.830
4.160
3.870
4.190
3.940
4.280
V
V
E
= 5.0V
V
IL
Input LOW Voltage
(1)
3.050
3.520
3.050
3.520
3.050
3.555
V
V
E
= 5.0V
V
BB
Output Reference Voltage
(1)
3.620
3.730
3.650
3.750
3.690
3.810
V
V
E
= 5.0V
NOTE:
1. V
IH
, V
IL
and V
BB
are referenced to V
E
and will vary 1:1 with the power supply. The levels shown are for V
E
= +5.0V.
100H ECL DC ELECTRICAL CHARACTERISTICS
AC ELECTRICAL CHARACTERISTICS
V
T
= V
E
= 5.0V
5%
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
t
PLH
Propagation Delay
5.0
6.0
4.8
5.8
5.3
6.3
ns
C
L
= 50pF
t
PHL
D to Output
t
skpp
Part-to-Part Skew
(1,4)
--
1.0
--
1.0
--
1.0
ns
C
L
= 50pF
t
skew++
Within-Device Skew
(2,4)
--
0.5
--
0.5
--
0.5
ns
C
L
= 50pF
t
skew
Within-Device Skew
(3,4)
--
0.5
--
0.5
--
0.5
ns
C
L
= 50pF
t
PLH
Propagation Delay
4.9
6.9
4.9
6.9
5.0
7.0
ns
C
L
= 50pF
t
PHL
LEN to Output
t
PLH
Propagation Delay
5.0
7.0
4.9
6.9
5.0
7.0
ns
C
L
= 50pF
t
PHL
EN to Output
t
r
Output Rise/Fall Time
--
1.7
--
1.7
--
1.7
ns
C
L
= 50pF
t
f
0.8V to 2.0V
--
1.6
--
1.6
--
1.6
f
MAX
Maximum Input Frequency
(5,6)
135
--
135
--
135
--
MHz
C
L
= 50pF
--
Pulse Width
1.5
--
1.5
--
1.5
--
ns
--
--
Recovery Time
1.25
--
1.25
--
1.25
--
ns
--
t
S
Set-up Time
0.5 (typ.)
0.5 (typ.)
0.5 (typ.)
ns
--
t
H
Hold Time
0.5 (typ.)
0.5 (typ.)
0.5 (typ.)
ns
--
NOTES:
1. Device-to-Device Skew considering HIGH-to-HIGH transitions at common
power supply voltage.
2. Within-Device Skew considering HIGH-to-HIGH transitions at common
power supply voltage.
3. Within-Device Skew considering LOW-to-LOW transitions at common
power supply voltage.
4. All skew parameters are guaranteed but not tested.
5. Frequency at which output levels will meet a 0.8V to 2.0V minimum swing.
6. The f
MAX
value is specified as the minimum guaranteed maximum
frequency. Actual operational maximum frequency may be greater.
4
ClockWorksTM
SY10H641
SY100H641
Micrel
TTL SWITCHING CIRCUIT
ECL/TTL PROPAGATION DELAY -- SINGLE ENDED
ECL/TTL WAVEFORMS: RISE AND FALL TIMES
Ordering
Package
Operating
Code
Type
Range
SY10H641JC
J28-1
Commercial
SY10H641JCTR
J28-1
Commercial
SY100H641JC
J28-1
Commercial
SY100H641JCTR
J28-1
Commercial
LOGIC DIAGRAM
PRODUCT ORDERING CODE
V
IN
V
OUT
50%
1.5V
T
pd++
T
pd
V
OUT
T
rise
T
fall
2.0V
0.8V
Pulse
Generator
In
Out
PECL
V
EE
V
CC
& V
CCO
TTL
CH A
Oscilloscope
CH B
Use 0.1
F capacitors
for decoupling.
Device
Under
Test
50
Coax
50
Coax
50
Coax
450
Use oscilloscope
internal 50
load
for termination
5
ClockWorksTM
SY10H641
SY100H641
Micrel
28 LEAD PLCC (J28-1)
Rev. 03
MICREL-SYNERGY
3250 SCOTT BOULEVARD
SANTA CLARA
CA 95054
USA
TEL
+ 1 (408) 980-9191
FAX
+ 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.
2000 Micrel Incorporated
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