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Электронный компонент: SY100EP210UTCTR

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FEATURES
s
2.5V and 3.3V power supply options
s
Guaranteed AC parameters over temperature:
f
MAX
> 3.0GHz
< 25ps within-device skew
< 250ps t
r
/ t
f
< 380ps propagation delay (differential)
s
Wide temperature range: 40
C to +85
C
s
Differential design
s
V
BB
output
s
Fully compatible with industry standard 100K I/O
levels
s
Available in 32-pin TQFP Package
The SY100EP210U is a high-speed, precision low skew
1-to-5 dual differential clock driver. HSTL inputs can be
used when the EP210U is operating in PECL mode.
The EP210U specifically guarantees critical AC
parameters over temperature and voltage. Optimal design,
layout, and processing minimize skew within device and
from device-to-device.
The SY100EP210U, as with most other ECL devices,
can be operated from a positive V
CC
supply in PECL mode.
This allows the EP210U to be used for high performance
clock distribution in +3.3V or +2.5V systems. Single-ended
input operation is limited to a V
CC
3.0V in PECL mode, or
V
EE
3.0V in ECL mode.
Designers can take advantage of the EP210U's
performance to distribute low skew clocks across the
backplane or to multiple points on a board.
2.5V/3.3V DUAL 1:5 DIFFERENTIAL
LVECL/LVPECL/HSTL CLOCK DRIVER
DESCRIPTION
Precision EdgeTM
SY100EP210U
FINAL
1
Rev.: C
Amendment: /0
Issue Date:
March 2003
BLOCK DIAGRAM
Qa0
/Qa0
Qa1
/Qa1
Qa2
/Qa2
Qa3
/Qa3
Qa4
/Qa4
CLKa
/CLKa
Qb0
/Qb0
Qb1
/Qb1
Qb2
/Qb2
Qb3
/Qb3
Qb4
/Qb4
CLKb
/CLKb
VBB
75k
75k
V
EE
V
EE
V
CC
75k
V
EE
75k
75k
V
CC
V
EE
75k
Precision Edge is a trademark of Micrel, Inc.
Precision EdgeTM
2
Precision EdgeTM
SY100EP210U
Micrel
PIN CONFIGURATION
32 31 30 29 28 27 26 25
9
10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
VCC
NC
CLKa
/CLKa
VBB
CLKb
/CLKb
VEE
Qa3
/Qa3
Qa4
/Qa4
Qb0
/Qb0
Qb1
/Qb1
VCC
Qa0
/Qa0
Qa1
/Qa1
Qa2
/Qa2
VCC
VCC
/Qb4
Qb4
/Qb3
Qb3
/Qb2
Top View
TQFP
T32-1
Qb2
VCC
Pin
Function
CLKa, /CLKa
LVPECL, LVECL, HSTL Clock Input: CLKa
input includes a 75k
pull-down. Default is
LOW if left floating. /CLKa includes both pull-up
and pull-down resistors. Default condition is
V
CC
/2.
CLKb, /CLKb
LVPECL, LVECL, HSTL Clock Input: CLKb
input includes a 75k
pull-down. Default is
LOW if left floating. /CLKb includes both pull-up
and pull-down resistors. Default condition is
V
CC
/2.
Qn0:4, /Qn0:4
LVPECL or LVECL Outputs: Terminate to
V
CC
2V. (see "Termination" section)
V
BB
Reference Voltage for Single-Ended Inputs:
It provides the switching reference for the input
differential amplifier. When used, bypass with a
0.0
F capacitor to the most positive reference
(usually V
CC
) as shown in Figure 3.
V
CC
Positive Power Supply: For LVPECL operation,
connect V
CC
to 3.3V or 2.5V. For LVECL
operation, connect to GND. Bypass with
0.1
F//0.01
F low ESR capacitors.
V
EE
Negative Power Supply: For LVPECL
operation, connect to GND. For LVECL
operation, connect to 3.3V or 2.5V.
PIN NAMES
Symbol
Rating
Value
Unit
V
CC
-- V
EE
Power Supply Voltage
6.0
V
V
IN
Input Voltage (V
CC
= 0V, V
IN
not more negative than V
EE
)
6.0 to 0
V
Input Voltage (V
EE
= 0V, V
IN
not more positive than V
CC
)
+6.0 to 0
V
I
OUT
Output Current
Continuous
50
mA
Surge
100
I
BB
VBB
Sink/Source Current
(2)
0.5 to 0
mA
T
A
Operating Temperature Range
40 to +85
C
T
store
Storage Temperature Range
65 to +150
C
JA
Package Thermal Resistance
Still-Air
50
C/W
(Junction-to-Ambient)
500lfpm
42
JC
Package Thermal Resistance
20
C/W
(Junction-to-Case)
ABSOLUTE MAXIMUM RATINGS
(1)
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.
Note 2.
Use for inputs of same package only.
3
Precision EdgeTM
SY100EP210U
Micrel
T
A
= 40
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Condition
V
CC
Power Supply
(LVPECL)
2.37
--
3.8
2.37
--
3.8
2.37
--
3.8
V
Voltage
(LVECL)
2.37
--
3.8
2.37
--
3.8
2.37
--
3.8
I
EE
Internal Supply Current
--
70
90
--
70
90
--
70
90
mA
I
IH
Input HIGH Current
--
--
150
--
--
150
--
--
150
A
V
IN
= V
IH
I
IL
Input LOW Current
CLKa, CLKb
0.5
--
--
0.5
--
--
0.5
--
--
A
V
IN
= 0V
/CLKa, /CLKb
150
--
--
150
--
--
150
--
--
A
V
IN
= 0V
C
IN
Input Capacitance
--
--
--
--
2
--
--
--
--
pF
DC ELECTRICAL CHARACTERISTICS
(1)
Note 1.
100KEP circuits are designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. The
circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained.
T
A
= 40
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Condition
V
OL
Output LOW Voltage
555
680
895
555
680
895
555
680
895
mV
50
to V
CC
2V
V
OH
Output HIGH Voltage
1355
1480
1605
1355
1480
1605
1355
1480
1605
mV
50
to V
CC
2V
V
IHCMR
Input HIGH Voltage
(2)
1.2
--
V
CC
1.2
--
V
CC
1.2
--
V
CC
V
Common Mode Range
Note 1.
100KEP circuits are designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. The
circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. Input and output varies
1:1 with V
CC
.
Note 2.
The V
IHCMR
(min) varies with V
EE
. V
IHCMR
(max) varies 1:1 with V
CC
. The V
IHCMR
range is referenced to the most positive side of the
differential input signal.
2.5V LVPECL DC ELECTRICAL CHARACTERISTICS
(1)
V
CC
= 2.5V
10%, V
EE
= 0V
T
A
= 40
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Condition
V
IH
Input HIGH Voltage
2135
--
2420
2135
--
2420
2135
--
2420
mV
V
IL
Input LOW Voltage
1490
--
1675
1490
--
1675
1490
--
1675
mV
V
OL
Output LOW Voltage
1355
1480
1605
1355
1480
1605
1355
1480
1605
mV
50
to V
CC
2V
V
OH
Output HIGH Voltage
2155
2280
2405
2155
2280
2405
2155
2280
2405
mV
50
to V
CC
2V
V
BB
Output Reference Voltage
(2)
1775
1875
1975
1775
1875
1975
1775
1875
1975
mV
V
IHCMR
Input HIGH Voltage
1.2
--
V
CC
1.2
--
V
CC
1.2
--
V
CC
mV
Common Mode Range
(3)
Note 1.
100KEP circuits are designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. The
circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. Input and output varies
1:1 with V
CC
.
Note 2.
Single-ended input operation is limited to V
CC
3.0V in LVPECL mode. V
BB
reference varies 1:1 with V
CC
.
Note 3.
The V
IHCMR
(min) varies with V
EE
. V
IHCMR
(max) varies 1:1 with V
CC
. The V
IHCMR
range is referenced to the most positive side of the
differential input signal.
3.3V LVPECL DC ELECTRICAL CHARACTERISTICS
(1)
V
CC
= 3.3V
10%
4
Precision EdgeTM
SY100EP210U
Micrel
T
A
= 40
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Condition
V
IL
Input LOW Voltage
1810
--
1625 1810
--
1625 1810
--
1625
mV
(Single-Ended)
V
IH
Input HIGH Voltage
1165
--
0880 1165
--
0880 1165
--
0880
mV
(Single-Ended)
V
OL
Output LOW Voltage
1945 1820 1695 1945 1820 1695 1945 1820 1695
mV
50
to
V
CC
2V
V
OH
Output HIGH Voltage
1145 1020 0895 1145 1020 0895 1145 1020 0895
mV
50
to
V
CC
2V
V
BB
Output Reference Voltage
(2)
1525 1425 1325 1525 1425 1325 1525 1425 1325
mV
V
IHCMR
Input HIGH Voltage
V
EE
+1.2
0.0
V
EE
+1.2
0.0
V
EE
+1.2
0.0
V
Common Mode Range
(3)
LVECL DC ELECTRICAL CHARACTERISTICS
(1)
V
EE
= 2.375V to 3.8V; V
CC
= 0V
Note 1.
100KEP circuits are designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. The
circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained.
Note 2.
Single-ended input operation is limited to V
EE
3.0V in ECL/LVECL mode. V
BB
reference varies 1:1 with V
CC
.
Note 3.
The V
IHCMR
(min) varies with V
EE
. The V
IHCMR
range is referenced to the most positive side of the differential input signal.
T
A
= 40
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Condition
VIH
Input HIGH Voltage
1200
--
--
1200
--
--
1200
--
--
mV
VIL
Input LOW Voltage
--
--
400
--
--
400
--
--
400
mV
VX
Input Crossover Voltage
680
--
900
680
--
900
680
--
900
mV
HSTL DC ELECTRICAL CHARACTERISTICS
V
CC
= 2.375V to 3.8V; V
EE
= 0V
5
Precision EdgeTM
SY100EP210U
Micrel
Note 1.
f
MAX
guaranteed for functionality only (toggel frequency).
Note 2.
CLK 0 to Bank A and CLK 1 to Bank B; Differential. Maximum propagation delay is worst-case, over temperature and voltage.
Note 3.
Skew is measured between outputs under identical transitions.
Note 4.
Measured for same transitions.
Note 5.
See "Timing Waveform."
T
A
= 40
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Condition
f
MAX
Maximum Frequency
(1)
3.0
--
--
3.0
--
--
3.0
--
--
GHz
HSTL/LVPECL
t
PD
Propagation Delay
(2)
220
300
380
220
300
380
220
300
380
ps
t
SKEW
(3)
Within-Device Skew
--
20
25
--
20
25
--
20
25
ps
Part-to-Part Skew
(4)
--
85
160
--
85
160
--
85
160
ps
t
JITTER
Cycle-to-Cycle Jitter (rms)
--
0.2
< 1
--
0.2
< 1
--
0.2
< 1
ps(rms)
V
PP
Minimum Input Swing
(5)
150
800
1200
150
800
1200
150
800
1200
mV
t
r
,
t
r
Output Rise/Fall Times
100
150
250
100
150
250
100
150
250
ps
(20% to 80%)
AC ELECTRICAL CHARACTERISTICS
(LVPECL) V
CC
= 2.375 to 3.8V, V
EE
= 0V; (LVECL) V
EE
= 2.375V to 3.8V, V
CC
= 0V
TIMING WAVEFORM
CLKa/b
/CLKa/b
150mV to 1200mV
PRODUCT ORDERING CODE
Ordering
Package
Operating
Package
Code
Type
Range
Marking
SY100EP210UTC
T32-1
Commercial
XEP210U
SY100EP210UTCTR
(1)
T32-1
Commercial
XEP210U
Note 1.
Tape and Reel.
Note 2.
Recommended for new designs.
Ordering
Package
Operating
Package
Code
Type
Range
Marking
SY100EP210UTI
(2)
T32-1
Industrial
XEP210U
SY100EP210UTITR
(1, 2)
T32-1
Industrial
XEP210U