NOT RECOMMENDED FOR NEW DESIGNS
Precision Edge®
SY10H841L
®
Precision SY100H841L
Edge
3.3V SINGLE SUPPLY QUAD
PECL-TO-TTL W/LATCHED
OUTPUT ENABLE
Micrel, Inc.
SY10H841L
SY100H841L
FEATURES
■
■
■
■
■
3.3V power supply
Translates positive ECL to TTL (PECL-to-TTL)
300ps pin-to-pin skew
500ps part-to-part skew
Differential internal design for increased noise
immunity and stable threshold inputs
■ VBB reference output
Precision Edge®
DESCRIPTION
The SY10/100H841L are single supply, low skew
translating 1:4 clock drivers.
The devices feature a 24mA TTL output stage, with
AC performance specified into a 20pF 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 pulldowns) the latch is transparent. A HIGH on the enable
pin (EN) forces all outputs LOW.
As frequencies increase to 40MHz and above, precise
timing and shaping of clock signals becomes extremely
important. The H841 solves several clock distribution
problems such as minimizing skew (300ps), maximizing
clock fanout (24mA drive), and precise duty cycle control
through a proprietary differential internal design.
The 10K version is compatible with 10KH ECL logic
levels. The 100K version is compatible with 100K levels.
■
■
■
■
Single supply
Enable input
Latch enable input
Extra TTL and ECL power/ground pins to reduce
cross-talk/noise
■ High drive capability: 24mA each output
■ Fully compatible with industry standard 10K, 100K
I/O levels
■ Available in 16-pin SOIC package
PIN NAMES
BLOCK DIAGRAM
Pin
Q0
Q1
Q2
VBB
D
D Q
D
Function
GT
TTL Ground (0V)
VT
TTL VCC (+3.3V)
VE
ECL VCC (+3.3V)
GE
ECL Ground (0V)
D, D
Signal Input (PECL)
VBB
VBB Reference Output (PECL)
Q0 - Q3
Signal Outputs (TTL)
EN
Enable Input (PECL)
LEN
Latch Enable Input
Q3
LEN
EN
Precision Edge is a registered trademark of Micrel, Inc.
M9999-032906
hbwhelp@micrel.com or (408) 955-1690
Rev.: E
1
Amendment: /0
Issue Date: March 2006
Precision Edge®
SY10H841L
SY100H841L
Micrel, Inc.
PACKAGE/ORDERING INFORMATION
Ordering Information(1)
LEN
1
16
Q3
Part Number
EN
2
15
GT
SY10H841LZC
GE
3
14
Q2
VE
4
D
5
D
6
11
Q1
VBB
7
10
GT
GT
8
9
Q0
SOIC
Z16-1
13
12
VT
VT
16-Pin SOIC (Z16-1)
Package
Type
Operating
Range
Package
Marking
Lead
Finish
Z16-1
Commercial
SY10H841LZC
Sn-Pb
SY10H841LZCTR(2)
Z16-1
Commercial
SY10H841LZC
Sn-Pb
SY100H841LZC
Z16-1
Commercial
SY100H841LZC
Sn-Pb
SY100H841LZCTR(2)
Z16-1
Commercial
SY100H841LZC
Sn-Pb
SY10H841LZH(3)
Z16-1
Commercial
SY10H841LZH with
NiPdAu
Pb-Free bar-line indicator Pb-Free
SY10H841LZHTR(2, 3)
Z16-1
Commercial
SY10H841LZH with
NiPdAu
Pb-Free bar-line indicator Pb-Free
SY100H841LZH(3)
Z16-1
Commercial
SY100H841LZH with
NiPdAu
Pb-Free bar-line indicator Pb-Free
SY100H841LZHTR(2, 3)
Z16-1
Commercial
SY100H841LZH with
NiPdAu
Pb-Free bar-line indicator Pb-Free
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.
M9999-032906
hbwhelp@micrel.com or (408) 955-1690
2
Precision Edge®
SY10H841L
SY100H841L
Micrel, Inc.
TRUTH TABLE
PIN DESCRIPTION
D
LEN
EN
Q
Pin
Symbol
L
L
L
L
1
LEN
Latch Enable Input
H
L
L
H
2
EN
Enable Input (PECL)
X
X
H
L
3
GE
ECL Ground (0V)
X
H
L
Latch
4
VE
ECL VCC (+3.3V)
5
D
ECL Signal Input (Non-inverting)
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Value
Unit
VE (ECL)
VT (TTL)
Power Supply
Voltage
–0.5 to +7.0
–0.5 to +7.0
V
VI (ECL)
VOUT (TTL)
Input Voltage
0.0 to VEE
0.0 to VT
V
TLEAD
Lead Temperature
Range (soldering, 20sec)
+260
˚C
Tstore
Storage Temperature
–65 to +150
˚C
TA
Operating Temperature
0 to +85
˚C
Description
6
D
7
VBB
VBB Reference Output (PECL)
ECL Signal Input (Inverting)
8
GT
TTL Ground (0V)
9
Q0
Signal Output (TTL)
10
GT
TTL Ground (0V)
11
Q1
Signal Output (TTL)
12
VT
TTL VCC (+3.3V)
13
VT
TTL VCC (+3.3V)
14
Q2
Signal Output (TTL)
15
GT
TTL Ground (0V)
16
Q3
Signal Output (TTL)
NOTE:
1. Permanent device damage may occur if absolute maximum ratings are
exceeded. This is a stress rating only and functional operation is not
implied at conditions other than those detailed in the operational sections
of this data sheet. Exposure to absolute maximum ratlng conditions for
extended periods may affect device reliability.
DC CHARACTERISTICS
VT = VE = +3.0V to +3.6V
TA = 0°C
Symbol
Parameter
TA = +25°C
TA = +85°C
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
IEE
Power Supply Current
ECL
—
40
—
40
—
40
mA
VE Pin
ICCH
Power Supply Current
TTL
—
20
—
20
—
20
mA
Total all VT pins
—
25
—
25
—
25
ICCL
TTL DC ELECTRICAL CHARACTERISTICS
VT = VE = +3.0V to +3.6V
TA = 0°C
Symbol
Parameter
TA = +25°C
TA = +85°C
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
VOH
Output HIGH Voltage
2.0
—
2.0
—
2.0
—
V
IOH = –3.0mA
VOL
Output LOW Voltage
—
0.5
—
0.5
—
0.5
V
IOL = 24mA
IOS
Output Short Circuit Current
–80
—
–80
—
–80
—
mA
VOUT = 0V
M9999-032906
hbwhelp@micrel.com or (408) 955-1690
3
Precision Edge®
SY10H841L
SY100H841L
Micrel, Inc.
10H ECL DC ELECTRICAL CHARACTERISTICS(1)
VT = VE = +3.0V to +3.6V
TA = 0°C
Symbol
Parameter
TA = +25°C
TA = +85°C
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
IIH
Input HIGH Current
—
225
—
175
—
175
µA
—
IIL
Input LOW Current
0.5
—
0.5
—
0.5
—
µA
—
VIH
Input HIGH Voltage
2.130
2.460
2.170
2.490
2.240
2.580
V
VE = 3.3V
VIL
Input LOW Voltage
1.350
1.820
1.350
1.820
1.350
1.855
V
VE = 3.3V
VBB
Output Reference Voltage
1.920
2.030
1.950
2.050
1.990
2.110
V
VE = 3.3V
Note:
1. ECL VIH, VIL and VBB are referenced to VCCE and will vary 1:1 with the power supply. The levels shown are for IVT = IVO = VCCE = +3.3V.
100H ECL DC ELECTRICALCHARACTERISTICS(1)
VT = VE = +3.0V to +3.6V
TA = 0°C
Symbol
Parameter
TA = +25°C
TA = +85°C
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
—
225
—
175
—
175
µA
—
IIH
Input HIGH Current
IIL
Input LOW Current
0.5
—
0.5
—
0.5
—
µA
—
VIH
Input HIGH Voltage
2.135
2.420
2.135
2.420
2.135
2.420
V
VE = 3.3V
VIL
Input LOW Voltage
1.490
1.825
1.490
1.825
1.490
1.825
V
VE = 3.3V
VBB
Output Reference Voltage
1.920
2.040
1.920
2.040
1.920
2.040
V
VE = 3.3V
Note:
1. ECL VIH, VIL and VBB are referenced to VCCE and will vary 1:1 with the power supply. The levels shown are for IVT = IVO = VCCE = +3.3V.
AC CHARACTERISTICS
VT = VE = +3.0V to +3.6V
TA = 0°C
Symbol
Parameter
TA = +25°C
TA = +85°C
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
tPLH
tPHL
Propagation Delay
D to Output
Q0–Q3
2.2
3.2
2.1
3.1
2.0
3.0
ns
CL = 20pF
tskpp
Part-to-Part Skew(1,4)
Q0–Q3
—
0.5
—
0.5
—
0.5
ns
CL = 20pF
tskew++
Within-Device Skew(2,4)
Q0–Q3
—
0.3
—
0.3
—
0.3
ns
CL = 20pF
tskew– –
Within-Device
Skew(3,4)
Q0–Q3
—
0.3
—
0.3
—
0.3
ns
CL = 20pF
tPLH
tPHL
Propagation Delay
LEN to Q
Q0–Q3
2.2
3.2
2.1
3.1
2.0
3.0
ns
CL = 20pF
tPLH
tPHL
Propagation Delay
EN to Output
Q0–Q3
2.2
3.2
2.1
3.1
2.0
3.0
ns
CL = 20pF
tr
tf
Output Rise/Fall Time
1.0V to 2.0V
Q0–Q3
—
1.5
—
1.5
—
1.5
ns
CL = 20pF
fMAX
Max. Input Frequency(5,6)
Q0–Q3
160
—
160
—
160
—
MHz
CL = 20pF
—
Pulse Width
Q0–Q3
1.5
—
1.5
—
1.5
—
ns
—
—
Recovery Time EN
Q0–Q3
1.0
—
1.0
—
1.0
—
ns
—
tS
Set-up Time D, EN
Q0–Q3
0.75
—
0.75
—
0.75
—
ns
—
tH
Hold Time D, EN
Q0–Q3
0.75
—
0.75
—
0.75
—
ns
—
Notes:
1. Device-to-Device Skew considering HIGH-to-HIGH transitions at common
VCC level.
2. Within-Device Skew considering HIGH-to-HIGH transitions at common
VCC level.
M9999-032906
hbwhelp@micrel.com or (408) 955-1690
3. Within-Device Skew considering LOW-to-LOW transitions at common
VCC level.
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 fMAX value is specified as the minimum guaranteed maximum
frequency. Actual operational maximum frequency may be greater.
4
Precision Edge®
SY10H841L
SY100H841L
Micrel, Inc.
TTL SWITCHING CIRCUIT
VEE
VCC & VCCO
USE 0.1µF CAPACITORS
FOR DECOUPLING.
PECL
TTL
50Ω COAX
DEVICE
UNDER
TEST
IN
PULSE
GENERATOR
50Ω COAX
USE OSCILLOSCOPE
INTERNAL 50Ω LOAD
FOR TERMINATION.
OUT
450Ω
50Ω COAX
CH A
CH B
OSCILLOSCOPE
ECL/TTL PROPAGATION DELAY — SINGLE ENDED
50%
VIN
Tpd– –
Tpd++
1.5V
VOUT
ECL/TTL WAVEFORMS: RISE AND FALL TIMES
2.0V
0.8V
VOUT
Trise
M9999-032906
hbwhelp@micrel.com or (408) 955-1690
Tfall
5
Precision Edge®
SY10H841L
SY100H841L
Micrel, Inc.
16-PIN SOIC .300" WIDE (Z16-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
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.
M9999-032906
hbwhelp@micrel.com or (408) 955-1690
6
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