SY100EPT28LZGTR [MICREL]
3V LVTTL-TO-DIFFERENTIAL LVPECL AND DIFFERENTIAL LVPECL-TO-LVTTL TRANSLATOR; 3V LVTTL到差分LVPECL和差分LVPECL - TO- LVTTL译者
| 型号： | SY100EPT28LZGTR |
| 厂家： | 
MICREL SEMICONDUCTOR |
| 描述： | 3V LVTTL-TO-DIFFERENTIAL LVPECL AND DIFFERENTIAL LVPECL-TO-LVTTL TRANSLATOR |
| 文件： | 总7页 (文件大小：116K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ECLPro™
3V LVTTL-TO-DIFFERENTIAL LVPECL
AND DIFFERENTIAL LVPECL-TO-LVTTL
TRANSLATOR
SY10EPT28L
SY100EPT28L
FEATURES
■ 3.3V ±10% power supply
■ Guaranteed AC parameters over temperature:
> 275MHz (LVTTL)
ECL Pro™
f
MAX
■ < 2ns LVPECL-to-LVTTL propagation delay
■ < 600ps LVTTL-to-LVPECL propagation delay
■ Internal 75kΩ input pull-down resistors
■ Industrial temperature range: –40°C to +85°C
■ Available in 8-pin MSOP and SOIC packages
DESCRIPTION
The SY10/100EPT28L is a differential LVPECL-to-
LVTTL translator and a LVTTL-to-differential LVPECL
translator in a single package. Because LVPECL (Positive
ECL) levels are used, only +3.3V and ground are required.
The small outline 8-pin package and the dual translation
design of the EPT28L makes it ideal for applications
which are sending and receiving signals across a
backplane.
The 100k series includes temperature compensation.
Thus, logic levels are constant over temperature.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
PIN NAMES
Pin
D_LVTTL
Q_LVTTL
Function
Low Voltage TTL Input
Low Voltage TTL Output
D_LVPECL
/D_LVPECL
Low Voltage Differential PECL Inputs
with 75kΩ internal pull-down
Q_LVPECL
/Q_LVPECL
Low Voltage Differential PECL Outputs
VCC
3.3V Positive Supply
Ground
GND
ECL Pro is a trademark of Micrel, Inc.
Rev.: C
Amendment: /0
M9999-111605
hbwhelp@micrel.com or (408) 955-1690
1
Issue Date: November 2005
ECL Pro™
SY10EPT28L
SY100EPT28L
Micrel, Inc.
PACKAGE/ORDERING INFORMATION
Ordering Information(1)
Package Operating
Package
Marking
Lead
Finish
D_LVPECL
/D_LVPECL
Q_LVPECL
/Q-LVPECL
1
2
3
4
8
7
6
5
VCC
Part Number
Type
Range
Q_LVTTL
D_LVTTL
GND
SY10EPT28LZI
Z8-1
Industrial
HEP28
HEP28
XEP28
XEP28
HP28
Sn-Pb
Sn-Pb
Sn-Pb
Sn-Pb
Sn-Pb
Sn-Pb
Sn-Pb
Sn-Pb
NiPdAu
LVPECL
LVTTL
SY10EPT28LZITR(2)
Z8-1
Z8-1
Z8-1
K8-1
K8-1
K8-1
K8-1
Z8-1
Industrial
Industrial
Industrial
Industrial
Industrial
Industrial
Industrial
Industrial
SY100EPT28LZI
SY100EPT28LZITR(2)
SY10EPT28LKI
TOP VIEW
(Available in MSOP
or SOIC package)
SY10EPT28LKITR(2)
HP28
SY100EPT28LKI
XP28
SY100EPT28LKITR(2)
SY10EPT28LZG(3)
XP28
HEP28 with
Pb-Free bar-line indicator Pb-Free
HEP28 with NiPdAu
Pb-Free bar-line indicator Pb-Free
XEP28 with NiPdAu
Pb-Free bar-line indicator Pb-Free
XEP28 with NiPdAu
Pb-Free bar-line indicator Pb-Free
HP28 with NiPdAu
Pb-Free bar-line indicator Pb-Free
HP28 with NiPdAu
Pb-Free bar-line indicator Pb-Free
XP28 with NiPdAu
Pb-Free bar-line indicator Pb-Free
XP28 with NiPdAu
Pb-Free bar-line indicator Pb-Free
SY10EPT28LZGTR(2, 3)
SY100EPT28LZG(3)
SY100EPT28LZGTR(2, 3)
SY10EPT28LKG(3)
SY10EPT28LKGTR(2, 3)
SY100EPT28LKG(3)
SY100EPT28LKGTR(2, 3)
Notes:
Z8-1
Z8-1
Z8-1
K8-1
K8-1
K8-1
K8-1
Industrial
Industrial
Industrial
Industrial
Industrial
Industrial
Industrial
1. Contact factory for die availability. Dice are guaranteed at T = 25°C, DC Electricals only.
A
2. Tape and Reel.
3. Pb-Free package is recommended for new designs.
M9999-111605
hbwhelp@micrel.com or (408) 955-1690
2
ECL Pro™
SY10EPT28L
SY100EPT28L
Micrel, Inc.
(1)
ABSOLUTE MAXIMUM RATINGS
Symbol
Rating
Value
–0.5 to +3.8
0 to VCC
Unit
V
VCC
VIN
Power Supply Voltage
Input Voltage
V
IOUT
LVPECL Output Current
–Continuous
–Surge
50
100
mV
TA
Operating Temperature Range
Lead Temperature (Soldering, 20sec.)
Storage Temperature Range
–40 to +85
+260
°C
°C
TLEAD
Tstore
θJA
–65 to +150
°C
Package Thermal Resistance
(Junction-to-Ambient)
–Still-Air (SOIC)
–500lfpm (SOIC)
160
109
°C/W
–Still-Air (MSOP)
–500lfpm (MSOP)
206
155
°C/W
°C/W
θJC
Package Thermal Resistance
(Junction-to-Case)
(SOIC)
(MSOP)
39
39
(2)
DC ELECTRICAL CHARACTERISTICS
TA = –40°C
TA = +25°C
TA = +85°C
Symbol
VCC
Parameter
Power Supply Voltage
Power Supply Current
Min.
3.0
—
Typ.
3.3
20
Max.
3.6
Min.
3.0
—
Typ.
3.3
22
Max.
3.6
Min.
Typ.
3.3
25
Max. Unit Condition
3.0
—
3.6
40
V
ICC
40
40
mA
(2)
LVPECL DC ELECTRICAL CHARACTERISTICS
VCC = 3.3V ±10%
TA = –40°C
Typ.
TA = +25°C
TA = +85°C
Symbol
Parameter
Output HIGH
Min.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max. Unit Condition
VOH
10EPT 2165 2290 2415 2230 2355 2480 2290 2415 2540 mV
100EPT 2155 2280 2405 2155 2280 2405 2155 2280 2405
Note 3
Note 3
Note 3
Note 3
Voltage
VOL
VIH
VIL
Output LOW
Voltage
10EPT 1365 1490 1615 1430 1555 1680 1490 1615 1740 mV
100EPT 1355 1480 1605 1355 1480 1605 1355 1480 1605
Input HIGH
Voltage
10EPT 2090
100EPT 2075
—
—
2415 2155
2420 2075
—
—
2480 2215
2420 2075
—
—
2540 mV
2420
Input LOW
Voltage
10EPT 1365
100EPT 1355
—
—
1690 1430
1675 1355
—
—
1755 1490
1675 1355
—
—
1815 mV
1675
IIH
Input HIGH Current
Input LOW Current
—
—
—
150
0.5
—
—
—
—
150
0.5
—
—
—
—
150
0.5
µA VIN = 3.46V
µA
IIL
/D, D
0.5
CIN
Input Capacitance (SOIC)
(MSOP)
—
—
—
—
—
—
—
—
0.75
1.1
—
—
—
—
—
—
—
—
pF
pF
Notes:
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.
3.
10/100KEPT circuits are designed to meet the DC specifications shown in the above tables 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 vary 1:1 with V
.
CC
M9999-111605
hbwhelp@micrel.com or (408) 955-1690
3
ECL Pro™
SY10EPT28L
SY100EPT28L
Micrel, Inc.
(4)
LVTTL DC ELECTRICAL CHARACTERISTICS
VCC = 3.3V ±10%
TA = –40°C
TA = +25°C
TA = +85°C
Symbol
Parameter
Min.
2.0
—
Typ.
Max.
—
Min.
2.0
—
Typ.
Max.
—
Min.
2.0
—
Typ.
Max. Unit Condition
VOH
VOL
VIH
VIL
Output HIGH Voltage
Output LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Input Clamp Voltage
Input HIGH Current
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.5
—
V
V
IOH = –3mA
0.5
0.5
IOH = –24mA
2.0
—
—
2.0
—
—
2.0
—
V
0.8
0.8
0.8
–1.2
20
V
VIK
IIH
—
–1.2
20
—
–1.2
20
—
V
IIK = –18mA
VIN = 2.7V
VIN = VCC
VIN = 0.5V
VOUT = 0V
—
—
—
µA
µA
µA
mA
—
100
–0.2
–80
—
100
–0.2
–80
—
100
–0.2
–80
IIL
Input LOW Current
—
—
—
IOUT(SC) LVTTL Output
Short-Circuit Current
–275
–275
–275
CIN
Input Capacitance (SOIC)
(MSOP)
—
—
—
—
—
—
0.75
1.1
—
—
—
—
—
—
pF
pF
(4)
AC ELECTRICAL CHARACTERISTICS
V
= +3.3V ±10%
CC
TA = –40°C
Typ.
TA = +25°C
TA = +85°C
Symbol
Parameter
Min.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max. Unit Condition
fMAX
Maximum Frequency
Output
Toggle
MHz Frequency
LVPECL 700
LVTTL 275
—
350
—
—
700
275
—
350
—
—
700
275
—
350
—
—
MHz
tPLH
tPHL
Propagation Delay
D_LVPECL ➝ Q_LVTTL
1.5
100
1.2
—
400
—
2.5
600
VCC
1.5
100
1.2
—
400
—
2.5
600
VCC
1.5
100
1.2
—
400
—
2.5
600
VCC
ns
CL = 20pF
Q_LVTTL ➝ D_LVPECL
ps 50Ω to VCC–2.0
VCMR
VPP
LVPECL
Common Mode Range
V
LVPECL Input Voltage Swing
(Single-Ended)
Note 5
100
—
—
—
100
200
—
—
—
100
200
—
—
—
mV
LVPECL Output Rise/Fall Times 200
(20% to 80%)
500
500
500
ns 50Ω to VCC–2.0
tr, tf
LVTTL Output Rise/Fall Times
(10% to 90%)
0.5
—
1.0
0.5
—
1.0
0.5
—
1.0
ns
CL = 20pF
tDC
Duty Cycle
45
—
50
55
45
—
50
55
45
—
50
55
%
tJITTER
Cycle-to-Cycle Jitter (rms)
0.2
< 1
0.2
< 1
0.2
< 1
ps
RMS
4. 10/100KEPT circuits are designed to meet the DC specifications shown in the above tables 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.
5. V (min) is the minimum input swing for which AC parameters are guaranteed.
PP
M9999-111605
hbwhelp@micrel.com or (408) 955-1690
4
ECL Pro™
SY10EPT28L
SY100EPT28L
Micrel, Inc.
TERMINATION RECOMMENDATIONS
+3.3V
R1
130Ω
R1
+3.3V
130Ω +3.3V
ZO = 50Ω
ZO = 50Ω
R2
82Ω
R2
82Ω Vt = VCC —2V
Figure 1. LVPECL Parallel Termination–Thevenin Equivalent
+3.3V
+3.3V
Z = 50Ω
Z = 50Ω
50Ω
50Ω
source
destination
Rb
Figure 2. LVPECL Three-Resistor “Y–Termination”
Notes:
1. Power-saving alternative to 4-resistor, Thevenin termination.
2. Place termination resistors as close to destination inputs as possible.
3. R resistor sets the DC bias voltage, equal to V . For 3.3V supply, R value is between 46Ω to 50Ω.
b
t
b
M9999-111605
hbwhelp@micrel.com or (408) 955-1690
5
ECL Pro™
SY10EPT28L
SY100EPT28L
Micrel, Inc.
8-PIN MSOP (K8-1)
Rev. 01
M9999-111605
hbwhelp@micrel.com or (408) 955-1690
6
ECL Pro™
SY10EPT28L
SY100EPT28L
Micrel, Inc.
8-PIN SOIC .150" WIDE (Z8-1)
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 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.
© 2005 Micrel, Incorporated.
M9999-111605
hbwhelp@micrel.com or (408) 955-1690
7
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