differential Dual PECL/ECL 2:1 multiplexer. This device is a
pin-for-pin, plug-in replacement to the MC10/100EP56DT.
Two separate 2:1 multiplexers (Channel 0 and Channel 1)
with dedicated select control pins (SEL0 and SEL1) are
implemented in a 20-pin TSSOP package. The signal-path
inputs (D0a, D0b and D1a, D1b) accept differential signals
as low as 150mV pk-pk. For applications that require
common select control for both channels A & B, a common
select pin (COM_SEL) is available. All I/O pins are 100k
PECL/ECL logic compatible.
AC–performance is guaranteed over the industrial –40°C
to +85°C temperature range and 3.0V to 5.5V supply voltage
range. This device will operate in PECL/LVPECL or ECL/
LVECL mode. The 500ps max (400 typ) propagation delay
is matched for all signal and logic select paths: D-to-Q
OUT
,
SEL-to-Q
OUT
, and COM_SEL-to-Q
OUT
. Two V
BB
output
reference pins (approx equal to V
CC
–1.4V) are available
for AC–coupled or single-ended applications.
The SY100EP56V is part of Micrel’s high-speed, Precision
Edge timing and distribution family. For applications that
require a different I/O combination, consult the Micrel website
at www.micrel.com, and choose from a comprehensive
product line of high-speed, low skew fanout buffers,
translators, and clock dividers.
CROSS REFERENCE TABLE
Micrel Semiconductor
SY100EP56VK4I
SY100EP56VK4ITR
ON Semiconductor
MC100EP56DT
MC100EP56DTR2
MUX SELECT TRUTH TABLE
SEL0
X
L
L
H
H
SEL1
X
L
H
H
L
COM_SEL
H
L
L
L
L
Q0, /Q0
a
b
b
a
a
Q1, /Q1
a
b
a
a
b
ECL Pro is a trademark of Micrel, Inc.
M9999-120505
hbwhelp@micrel.com or (408) 955-1690
Rev.: D
Amendment: /0
1
Issue Date: December 2005
Micrel, Inc.
ECL Pro™
SY100EP56V
PACKAGE/ORDERING INFORMATION
D0a
/D0a
VBB0
D0b
/D0b
D1a
/D1a
VBB1
D1b
1
2
3
0
4
5
6
7
8
0
9
12 /Q1
11 VEE
/D1b 10
1
17 SEL0
16 COM_SEL
15 SEL1
14 VCC
13 Q1
1
20 VCC
19 Q0
18 /Q0
Ordering Information
(1)
Part Number
SY100EP56VK4I
SY100EP56VK4ITR
(2)
SY100EP56VK4G
(3)
SY100EP56VK4GTR
(2, 3)
Package
Type
K4-20-1
K4-20-1
K4-20-1
K4-20-1
Operating
Range
Industrial
Industrial
Industrial
Industrial
Package
Marking
XEP56V
XEP56V
Lead
Finish
Sn-Pb
Sn-Pb
XEP56V with
Pb-Free
Pb-Free bar-line indicator NiPdAu
XEP56V with
Pb-Free
Pb-Free bar-line indicator NiPdAu
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
A
= 25°C, DC Electricals only.
2. Tape and Reel.
3. Pb-Free package is recommended for new designs.
20-Pin TSSOP (K4-20-1)
PIN DESCRIPTION
Pin
D0a, /D0a
D0b, /D0b
Pin Number
1, 2,
4, 5
Function
Channel 0 PECL/ECL differential signal inputs. Multiplexing of these two differential inputs is
controlled by SEL0, or COM_SEL. The signal inputs include internal 75kΩ pull-down resistors.
Default condition is LOW when left floating. The input signal should be terminated externally.
See “Termination” section
Channel 1 PECL/ECL differential signal inputs. Multiplexing of these two differential inputs is
controlled by SEL1, or COM_SEL. The signal inputs include internal 75kΩ pull-down resistors.
Default condition is a logic LOW when left floating. The input signal should be terminated
externally. See “Termination” section
Channel 0 and Channel 1 reference output voltage. This reference is typically used to bias the
unused inverting input for single-ended input applications, or as the termination point for AC–
coupled differential input applications. V
BB
reference value is approximately V
CC
–1.4V, and tracks
V
CC
1:1. Maximum sink/source capability is 0.50mA. For single ended PECL inputs, connect to
the unused input through a 50Ω resistor. Decouple the V
BB
pin with a 0.01µF capacitor. For PECL/
LVPECL inputs, the decoupling capacitor is connected to V
CC
, since PECL signals are referenced
to V
CC
. Leave floating if not used.
Negative Power Supply: For PECL/LVPECL applications, connect to GND.
Channel 1 100KEP PECL/ECL compatible differential output. PECL/ECL termination is with a 50Ω
resistor to V
CC
–2V. Unused output pairs may be left floating. Unused single-ended outputs must
have a balanced load. For AC-coupled applications, the output stage emitter follower must have a
DC current path to ground. See “Termination” section.
100KEP PECL/ECL compatible Channel 1 and Channel 0 MUX select control. See “MUX
Select
Truth Table.”
Each pin includes an internal 75kΩ pull-down resistor. Default condition when left
floating is LOW.
100KEP PECL/ECL compatible Channel 1 and Channel 0 Common MUX select control. This is
the common select control pin for both Channels 0 and 1. Includes an internal 75kΩ pull-down
resistor. Default condition when left floating is LOW. Leave floating when not used.
Channel 0 100K EP PECL/ECL compatible differential output. PECL/ECL termination is with a
50Ω resistor to V
CC
–2V. Unused output pairs may be left floating. Unused single-ended outputs
must have a balanced load. For AC–coupled applications, the output stage emitter follower must
have a DC current path to ground. See “Termination” section.
Positive Power Supply: Both V
CC
pins must be connected to the same power supply externally.
Bypass with 0.1µF//0.01µF low ESR capacitors.
2
D1a, /D1a
D1b, /D1b
6, 7
9, 10
VBB0, VBB1
3, 8
VEE
/Q1, Q1
11
12, 13
SEL1, SEL0
15, 17
COM_SEL
16
/Q0, Q0
18, 19
VCC
14, 20
M9999-120505
hbwhelp@micrel.com or (408) 955-1690
Micrel, Inc.
ECL Pro™
SY100EP56V
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
CC
— V
EE
V
IN
I
OUT
I
BB
T
LEAD
T
A
T
store
θ
JA
Power Supply Voltage
Input Voltage (V
CC
= 0V, V
IN
not more negative than V
EE
)
Input Voltage (V
EE
= 0V, V
IN
not more positive than V
CC
)
Output Current
V
BB
Sink/Source Current
(2)
Lead Temperature (soldering, 20sec.)
Operating Temperature Range
Storage Temperature Range
Package Thermal Resistance
(Junction-to-Ambient)
Package Thermal Resistance
(Junction-to-Case)
–Still-Air (single-layer PCB)
–Still-Air (multi-layer PCB)
–500lfpm (multi-layer PCB)
–Continuous
–Surge
Rating
Value
6.0
–6.0 to 0
+6.0 to 0
50
100
±0.5
+260
–40 to +85
–65 to +150
115
75
65
21
Unit
V
V
V
mA
mA
°C
°C
°C
°C/W
θ
JC
Notes:
°C/W
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.
2.
Due to the limited drive capability, the V
BB
reference should only be used for inputs from the same package device (i.e., do not use for other
devices).
DC ELECTRICAL CHARACTERISTICS
(1)
T
A
= –40
°
C
Symbol
V
CC
Parameter
Power Supply Voltage
(PECL)
(LVPECL)
(ECL)
(LVECL)
Supply Current
Input HIGH Current
Input LOW Current
All Inputs
C
IN
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
= +25
°
C
Min.
4.5
3.0
–5.5
–3.8
—
—
0.5
—
Typ.
5.0
3.3
–5.0
–3.3
50
—
—
1.0
Max.
5.5
3.8
–4.5
–3.0
65
150
—
—
Min.
4.5
3.0
–5.5
–3.8
—
—
0.5
—
T
A
= +85
°
C
Typ.
5.0
3.3
–5.0
–3.3
50
—
—
—
Max.
5.5
3.8
–4.5
–3.0
65
150
—
—
mA
µA
µA
pF
No Load
V
IN
= V
IH
V
IN
= V
IL
Unit
V
Condition
Min.
4.5
3.0
–5.5
–3.8
—
—
0.5
—
Typ.
5.0
3.3
–5.0
–3.3
50
—
—
—
Max.
5.5
3.8
–4.5
–3.0
65
150
—
—
I
EE
I
IH
I
IL
Input Capacitance (TSSOP)
M9999-120505
hbwhelp@micrel.com or (408) 955-1690
3
Micrel, Inc.
ECL Pro™
SY100EP56V
(100KEP) LVPECL DC ELECTRICAL CHARACTERISTICS
(1)
V
CC
= 3.3V
±10%,
V
EE
= 0V
T
A
= –40
°
C
Symbol
V
IL
V
IH
V
OL
V
OH
V
BB
V
IHCMR
Notes:
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 parameters are at V
CC
=
3.3V. They vary 1:1 with V
CC
.
2. The V
IHCMR
range is referenced to the most positive side of the differential input signal.
T
A
= +25
°
C
Max.
1675
2420
1605
2405
1975
V
CC
Min.
1355
2075
1355
2155
1775
2.0
Typ.
—
—
1480
2280
1875
—
Max.
1675
2420
1605
2405
1975
V
CC
Min.
1355
2075
1355
2155
1775
2.0
T
A
= +85
°
C
Typ.
—
—
1480
2280
1875
—
Max.
1675
2420
1605
2405
1975
V
CC
Unit
mV
mV
mV
50Ω to V
CC
–2V
mV
50Ω to V
CC
–2V
mV
V
Condition
Parameter
Input LOW Voltage
(Single-Ended)
Input HIGH Voltage
(Single-Ended)
Outuput LOW Voltage
Output HIGH Voltage
Output Reference Voltage
Input HIGH Voltage
(2)
Common Mode Range
Min.
1355
2075
1355
2155
1775
2.0
Typ.
—
—
1480
2280
1875
—
(100KEP) PECL DC ELECTRICAL CHARACTERISTICS
(1)
V
CC
= 5.0V
±10%,
V
EE
= 0V
T
A
= –40
°
C
Symbol
V
IL
V
IH
V
OL
V
OH
V
BB
V
IHCMR
Notes:
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 parameters are at V
CC
=
5.0V. They vary 1:1 with V
CC
.
2. The V
IHCMR
range is referenced to the most positive side of the differential input signal.
T
A
= +25
°
C
Max.
3375
4120
3305
4105
3675
V
CC
Min.
3055
3775
3055
3855
3475
2.0
Typ.
—
—
3180
3980
3575
—
Max.
3375
4120
3305
4105
3675
V
CC
Min.
3055
3775
3055
3855
3475
2.0
T
A
= +85
°
C
Typ.
—
—
3180
3980
3575
—
Max.
3375
4120
3305
4105
3675
V
CC
Unit
mV
mV
mV
50Ω to V
CC
–2V
mV
50Ω to V
CC
–2V
mV
V
Condition
Parameter
Input LOW Voltage
(Single-Ended)
Input HIGH Voltage
(Single-Ended)
Outuput LOW Voltage
Output HIGH Voltage
Output Reference Voltage
Input HIGH Voltage
(2)
Common Mode Range
Min.
3055
3775
3055
3855
3475
2.0
Typ.
—
—
3180
3980
3575
—
M9999-120505
hbwhelp@micrel.com or (408) 955-1690
4
Micrel, Inc.
ECL Pro™
SY100EP56V
(100KEP) ECL/LVECL DC ELECTRICAL CHARACTERISTICS
(1)
V
CC
= 0V, V
EE
= –5.5V to –3.0V
T
A
= –40
°
C
Symbol
V
IL
V
IH
V
OL
V
OH
V
BB
V
IHCMR
Notes:
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.
2. The V
IHCMR
range is referenced to the most positive side of the differential input signal.
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