SK1929T [SEMTECH]
Low Skew Clock Driver, 9 True Output(s), 0 Inverted Output(s), PQFP32, 5 X 5 MM, TQFP-32;
| 型号： | SK1929T |
| 厂家： | 
SEMTECH CORPORATION |
| 描述： | Low Skew Clock Driver, 9 True Output(s), 0 Inverted Output(s), PQFP32, 5 X 5 MM, TQFP-32 驱动 逻辑集成电路 |
| 文件： | 总2页 (文件大小：120K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SK1929
Anything to PECL Translator
PRELIMINARY
HIGH-PERꢀORMANCE PRODUCTS
Description
eatures
The SK1929 is an extremely fast, stable, and accurate
low skew 1:9 clock / signal distributor featuring a
synchronous enable, which allows the outputs to be
turned off and on without the risk of an upredictable
output pulse. It is also capable of receiving inputs of
any technology and voltage level. The D - flip-flop is
triggered on the falling edge of the clock.
•
•
•
1:9 Clock/Data Driver
3 GHz Fmax
Anything to PECL Translation
Output Options
50Ω Source / Sink
The SK1929 uses 50Ω outputs with source /sink
capability, and is optimized for:
• High speed clock / data lines
that require translation
VCC
50Ω
50Ω
OUT
OUT
• Point to point, series termination
applications
*
8 mA
VEE
8 mA
VEE
Input Swing
Output Swing
unctionalꢀBlockꢀDiagram
VCC
VIH
VIL
VCC
1.3V
T
T *
700 mV
.
.
.
.
3.3V
or
5.2V
T
T1*
T
T2*
VIH
VIL
T
T *
VEE
VEE
IN
T
T4*
*
*
*
T
T *
LK
LK*
T
T *
EL*
E
PinꢀDescription
T
T7*
T
T *
VEE
SEL
SEL*
CLK
CLK*
IN
VCC
OUT3*
OUT3
OUT4
OUT4*
OUT5*
OUT5
VEE
PackageꢀInformation
IN*
32 pin, 5 mm x 5 mm
TQFP Package
VCC
Revision 1/January 23, 2001
www.semtech.com
24
SK1929
Anything to PECL Translator
PRELIMINARY
HIGH-PERꢀORMANCE PRODUCTS
DCꢀCharacteristics
Parameter
Inputs
Symbol
Min
Typ
Max
Units
Input High
Input Low
VIH
VIL
VEE + 2.0
VEE
VCC
VCC - .2
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)
Differential Input Voltage
| Input - Input* |
.2
4.3
V
Timing Inputs (CLK / CLK*)
Input High Current
Input Low Current
IIH
IIL
+1
-1
+25
+1
µA
µA
ꢀunctional Inputs (IN / IN*, SEL / SEL*)
Input Current
IIH, IIL
-420
+250
µA
Outputs
Digital Output Voltage
Output Common Mode Range
Internal Current Source
Output Impedance
| OUT - OUT* |
(OUT + OUT*) / 2
ISINK
600
VCC - 1.5
6.5
700
VCC -1.3
8
mV
V
mA
Ω
VCC - 1.1
10
ROUT
40
45
50
Power Supply
Power Supply Current
Positive Supply Voltage
Negative Supply Voltage
IEE
VCC
VEE
175
3.3
-3.3
221
3.6
-3.0
mA
V
V
3.0
-3.6
Test Conditions: Outputs unterminated.
ACꢀCharacteristics
Parameter
Symbol
Min
Typ
Max
Units
High Performance Option
Propagation Delay
CLK to OUT (SEL = 0)
CLK to OUT (SEL = 1)
SEL to OUT
Tpd
Tpd
Tpd
490
340
330
590
440
430
690
540
530
ps
ps
ps
Channel to Channel Skew
<20
ps
GHz
ps
Maximum Operating ꢀrequency (Note 1)
Minimum Pulse Width (Note 1)
ꢀmax
3.0
PW min
160
IN to CLK (Note 1)
Set Up Time
Hold Time
Tsu
Th
100
100
ps
ps
Output Rise and ꢀall Times (20% / 80%)
Temperature Coefficient
Tr / Tf
125
<1
150
ps
o
ps / C
∆Tpd / ∆T
Note 1: Guaranteed by characterization. Not production tested.
Revision 1/January 23, 2001
25
www.semtech.com
相关型号：
SK1999T
Low Skew Clock Driver, 9 True Output(s), 0 Inverted Output(s), PQFP32, 5 X 5 MM, TQFP-32
SEMTECH
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