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PDF ASM5I2304B Data sheet ( Hoja de datos )
| Número de pieza | ASM5I2304B | |
| Descripción | 3.3 V Zero Delay Buffer | |
| Fabricantes | Alliance Semiconductor | |
| Logotipo |  |
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September 2005
ASM5P2304B
rev 0.5
3.3V Zero Delay Buffer
Features
Zero input - output propagation delay, adjustable
by capacitive load on FBK input.
Multiple configurations - Refer “ASM5P2304B
Configurations Table”.
Input frequency range: 4MHz to 20MHz
www.DataSheet4U.com Multiple low-skew outputs.
Output-output skew less than 200pS.
Device-device skew less than 500pS.
Two banks of four outputs.
Less than 200pS Cycle-to-Cycle jitter
(-1, -1H, -2, -2H).
Available in space saving, 8-pin 150 mil SOIC
Package.
3.3V operation.
Advanced 0.35µ CMOS technology.
Industrial temperature available.
Functional Description
ASM5P2304B is a versatile, 3.3V zero-delay buffer
designed to distribute high-speed clocks in PC,
workstation, datacom, telecom and other high-performance
applications. It is available in an 8 pin package. The part
has an on-chip PLL, which locks to an input clock,
presented on the REF pin. The PLL feedback is required to
be driven to FBK pin, and can be obtained from one of the
outputs. The input-to-output propagation delay is
guaranteed to be less than 250pS, and the output-to-output
skew is guaranteed to be less than 200pS.
The ASM5P2304B has two banks of two outputs each.
Multiple ASM5P2304B devices can accept the same input
clock and distribute it. In this case the skew between the
outputs of the two devices is guaranteed to be less than
500pS.
The ASM5P2304B is available in two different
configurations (Refer “ASM5P2304B Configurations Table).
The ASM5P2304B-1 is the base part, where the output
frequencies equal the reference if there is no counter in the
feedback path. The ASM5P2304B-1H is the high-drive
version of the -1 and the rise and fall times on this device
are much faster. The ASM5P2304B-2 allows the user to
obtain REF and 1/2X or 2X frequencies on each output
bank. The exact configuration and output frequencies
depend on which output drives the feedback pin.
Block Diagram
FBK
REF
PLL
CLKA1
CLKA2
/2 Extra Divider (-2)
CLKB1
CLKB2
Alliance Semiconductor
2575 Augustine Drive • Santa Clara, CA • Tel: 408.855.4900 • Fax: 408.855.4999 • www.alsc.com
Notice: The information in this document is subject to change without notice.
1 page  
September 2005
ASM5P2304B
rev 0.5
Switching Characteristics for ASM5P2304B Commercial Temperature Devices
Parameter
Description
1/t1
t3
www.DataSheet4U.com
t3
t3
t4
t4
t4
Output Frequency
Duty Cycle 5= (t2 / t1) * 100
(-1, -2, -1H, -2H)
Duty Cycle 5 = (t2 / t1) * 100
(-1, -2,-1H, -2H)
Output Rise Time 5
(-1, -2)
Output Rise Time 5
(-1, -2)
Output Rise Time 5
(-1H, -2H)
Output Fall Time 5
(-1, -2)
Output Fall Time 5
(-1, -2)
Output Fall Time 5
(-1H, -2H)
Output-to-output skew on same bank
(-1, -2)
Output-to-output skew (-1H, -2H)
t5 Output bank A -to- output bank B skew
(-1, -2H)
Output bank A to output bank b skew
(-2)
t6
Delay, REF Rising Edge to FBK Rising
Edge 5
t7 Device-to-Device Skew 5
t8 Output Slew Rate5
tJ
Cycle-to-cycle jitter 5
(-1, -1H, -2H)
tJ
Cycle-to-cycle jitter 5
(-2)
tLOCK
PLL Lock Time 5
Test Conditions
30pF load, -1,-1H,-2, -2H devices
Measured at 1.4V, FOUT = 20MHz
30pF load
Measured at 1.4V, FOUT = <20MHz
15pF load
Measured between 0.8V and 2.0V
30pF load
Measured between 0.8V and 2.0V
15pF load
Measured between 0.8V and 2.0V
30pF load
Measured between 2.0V and 0.8V
30pF load
Measured between 2.0V and 0.8V
15pF load
Measured between 2.0V and 0.8V
30pF load
All outputs equally loaded
All outputs equally loaded
All outputs equally loaded
Min
4
40.0
45.0
All outputs equally loaded
Measured at VDD /2
Measured at VDD/2 on the FBK pins of
the device
Measured between 0.8V and 2.0V using
Test Circuit #2
Measured at 20MHz, loaded outputs,
15pF load
Measured at 20MHz, loaded outputs,
30pF load
Measured at 20MHz, loaded outputs,
15pF load
Measured at 20MHz, loaded outputs,
30pF load
Measured at 20MHz, loaded outputs,
15pF load
Stable power supply, valid clock
presented on REF and FBK pins
1
Typ
50.0
50.0
0
0
Max Unit
20 MHz
60.0 %
55.0 %
2.20 nS
1.50 nS
1.50 nS
2.20 nS
1.50 nS
1.25 nS
200
200
pS
200
400
±250 pS
500 pS
V/nS
175
200 pS
100
400
pS
375
1.0 mS
Note:
5. Parameter is guaranteed by design and characterization. Not 100% tested in production.
3.3V Zero Delay Buffer
Notice: The information in this document is subject to change without notice.
5 of 13
5 Page 
September 2005
rev 0.5
Ordering Codes
Ordering Code
ASM5P2304B-1-08-SR
ASM5P2304B-1-08-ST
ASM5I2304B-1-08-SR
ASM5I2304B-1-08-ST
ASM5P2304B-1H-08-SR
www.DataSheet4AUS.cMom5P2304B-1H-08-ST
ASM5I2304B-1H-08-SR
ASM5I2304B-1H-08-ST
ASM5P2304B-2-08-SR
ASM5P2304B-2-08-ST
ASM5I2304B-2-08-SR
ASM5I2304B-2-08-ST
ASM5P2304B-2H-08-SR
ASM5P2304B-2H-08-ST
ASM5I2304B-2H-08-SR
ASM5I2304B-2H-08-ST
ASM5P2304BF-1-08-SR
ASM5P2304BF-1-08-ST
ASM5I2304BF-1-08-SR
ASM5I2304BF-1-08-ST
ASM5P2304BF-1H-08-SR
ASM5P2304BF-1H-08-ST
ASM5I2304BF-1H-08-SR
ASM5I2304BF-1H-08-ST
ASM5P2304BF-2-08-SR
ASM5P2304BF-2-08-ST
ASM5I2304BF-2-08-SR
ASM5I2304BF-2-08-ST
ASM5P2304BF-2H-08-SR
ASM5P2304BF-2H-08-ST
ASM5I2304BF-2H-08-SR
ASM5I2304BF-2H-08-ST
ASM5P2304BG-1-08-SR
ASM5P2304BG-1-08-ST
ASM5I2304BG-1-08-SR
ASM5I2304BG-1-08-ST
Marking
5P2304B-1
5P2304B-1
5I2304B-1
5I2304B-1
5P2304B-1H
5P2304B-1H
5I2304B-1H
5I2304B-1H
5P2304B-2
5P2304B-2
5I2304B-2
5I2304B-2
5P2304B-2H
5P2304B-2H
5I2304B-2H
5I2304B-2H
5P2304BF-1
5P2304BF-1
5I2304BF-1
5I2304BF-1
5P2304BF-1H
5P2304BF-1H
5I2304BF-1H
5I2304BF-1H
5P2304BF-2
5P2304BF-2
5I2304BF-2
5I2304BF-2
5P2304BF-2H
5P2304BF-2H
5I2304BF-2H
5I2304BF-2H
5P2304BG-1
5P2304BG-1
5I2304BG-1
5I2304BG-1
ASM5P2304B
Package Type
8-pin 150-mil SOIC-TAPE & REEL
8-pin 150-mil SOIC-TUBE
8-pin 150-mil SOIC-TAPE & REEL
8-pin 150-mil SOIC-TUBE
8-pin 150-mil SOIC-TAPE & REEL
8-pin 150-mil SOIC-TUBE
8-pin 150-mil SOIC-TAPE & REEL
8-pin 150-mil SOIC-TUBE
8-pin 150-mil SOIC-TAPE & REEL
8-pin 150-mil SOIC-TUBE
8-pin 150-mil SOIC-TAPE & REEL
8-pin 150-mil SOIC-TUBE
8-pin 150-mil SOIC-TAPE & REEL
8-pin 150-mil SOIC-TUBE
8-pin 150-mil SOIC-TAPE & REEL
8-pin 150-mil SOIC-TUBE
8-pin 150-mil SOIC-TAPE & REEL, Pb free
8-pin 150-mil SOIC-TUBE, Pb free
8-pin 150-mil SOIC-TAPE & REEL, Pb free
8-pin 150-mil SOIC-TUBE, Pb free
8-pin 150-mil SOIC-TAPE & REEL, Pb free
8-pin 150-mil SOIC-TUBE, Pb free
8-pin 150-mil SOIC-TAPE & REEL, Pb free
8-pin 150-mil SOIC-TUBE, Pb free
8-pin 150-mil SOIC-TAPE & REEL, Pb free
8-pin 150-mil SOIC-TUBE, Pb free
8-pin 150-mil SOIC-TAPE & REEL, Pb free
8-pin 150-mil SOIC-TUBE, Pb free
8-pin 150-mil SOIC-TAPE & REEL, Pb free
8-pin 150-mil SOIC-TUBE, Pb free
8-pin 150-mil SOIC-TAPE & REEL, Pb free
8-pin 150-mil SOIC-TUBE, Pb free
8-pin 150-mil SOIC-TAPE & REEL, Green
8-pin 150-mil SOIC-TUBE, Green
8-pin 150-mil SOIC-TAPE & REEL, Green
8-pin 150-mil SOIC-TUBE, Green
Operating Range
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
3.3V Zero Delay Buffer
Notice: The information in this document is subject to change without notice.
11 of 13
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ASM5I2304B.PDF ] | |
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