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PDF ASM5I23S05A Data sheet ( Hoja de datos )
| Número de pieza | ASM5I23S05A | |
| Descripción | (ASM5I23S05A / ASM5I23S09A) 3.3V SpreadTrak Zero Delay Buffer | |
| Fabricantes | Alliance Semiconductor | |
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August 2004
ASMP5P23S09A
ASMP5P23S05A
rev 2.0
3.3V ‘SpreadTrak’ Zero Delay Buffer
General Features
10 MHz to 133- MHz operating range, compatible
with CPU and PCI bus frequencies.
Zero input - output propagation delay.
Multiple low-skew outputs.
Output-output skew less than 250 ps.
Device-device skew less than 700 ps.
www.DataSheet4U.com One input drives 9 outputs, grouped as 4 + 4
+ 1 (ASM5P23S09A).
One input drives 5 outputs (ASM5P23S05A).
Less than 200 ps cycle-to-cycle jitter is compatible
with Pentium® based systems.
Test Mode to bypass PLL (ASM5P23S09A only,
refer Select Input Decoding Table).
Available in 16-pin, 150-mil SOIC, 4.4 mm
TSSOP, and 150-mil SSOP packages
(ASM5P23S09A) or in 8-pin, 150-mil SOIC
package (ASM5P23S05A).
3.3V operation, advanced 0.35µ CMOS
technology.
‘SpreadTrak’.
133- MHz frequencies, and has higher drive than the -1
devices. All parts have on-chip PLLs that lock to an input
clock on the REF pin. The PLL feedback is on-chip and is
obtained from the CLKOUT pad.
The ASM5P23S09A has two banks of four outputs each,
which can be controlled by the Select inputs as shown in
the Select Input Decoding Table. If all the output clocks are
not required, Bank B can be three-stated. The select input
also allows the input clock to be directly applied to the
outputs for chip and system testing purposes.
Multiple ASM5P23S09A and ASM5P23S05A 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 700ps.
All outputs have less than 200 ps of cycle-to-cycle jitter.
The input and output propagation delay is guaranteed to be
less than 250 ps, and the output to output skew is
guaranteed to be less than 250ps.
Functional Description
ASM5P23S09A is a versatile, 3.3V zero-delay buffer
designed to distribute high-speed clocks with Spread
Spectrum capability. It is available in a 16-pin package. The
ASM5P23S05A is the eight-pin version of the
ASM5P23S09A. It accepts one reference input and drives
out five low-skew clocks.
The -1H version of the ASM5P23SXXA operates at up to
The ASM5P23S09A and the ASM5P23S05A are available
in two different configurations, as shown in the ordering
information table. The ASM5P23SXXA-1 is the base part.
The ASM5P23SXXA-1H is the high drive version of the -1
and its rise and fall times are much faster than -1 part.
Block Diagram
REF
PLL
CLKOUT
REF
CLK1
CLK2
CLK3
CLK4
S2
S1
ASM5P23S05A
PLL MUX
Select Input
Decoding
ASM5P23S09A
CLKOUT
CLKA1
CLKA2
CLKA3
CLKA4
CLKB1
CLKB2
CLKB3
CLKB4
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  
August 2003
rev 2.0
ASM5P23S09A
ASM5P23S05A
Absolute Maximum Ratings
Parameter
Min Max Unit
Supply Voltage to Ground Potential
-0.5 +7.0
V
DC Input Voltage (Except REF)
DC Input Voltage (REF)
-0.5 VDD + 0.5
-0.5 7
V
V
Storage Temperature
www.DataSheet4MUa.cxo.mSoldering Temperature (10 sec)
Junction Temperature
-65 +150
260
150
°C
°C
°C
Static Discharge Voltage
(per MIL-STD-883, Method 3015)
2000
V
Note: These are stress ratings only and functional usage is not implied. Exposure to absolute maximum
ratings for prolonged periods can affect device reliability.
Operating Conditions for ASM5P23S05A and ASM5P23S09A - Commercial Temperature Devices
Parameter
Description
VDD Supply Voltage
TA Operating Temperature (Ambient Temperature)
CL Load Capacitance, below 100 MHz
CL Load Capacitance, from 100 MHz to 133 MHz
CIN Input Capacitance
Min Max Unit
3.0 3.6 V
0 70 °C
30 pF
10 pF
7 pF
3.3V ‘SpreadTrak’ Zero Delay Buffer
Notice: The information in this document is subject to change without notice.
5 of 16
5 Page 
August 2003
rev 2.0
Package Information: 8-lead (150-mil) SOIC
EH
www.DataSheet4U.com
D
e
B
A2 A
A1
C
L
Symbol Dimensions in inches
Min Max
A
0.057
0.071
A1
0.004
0.010
A2
0.053
0.069
B
0.012
0.020
C
0.004
0.01
D
0.186
0.202
E
0.148
0.164
e 0.050 BSC
H
0.224
0.248
L
0.012
0.028
0° 8°
Dimensions in
millimeters
Min Max
1.45 1.80
0.10 0.25
1.35 1.75
0.31 0.51
0.10 0.25
4.72 5.12
3.75 4.15
1.27 BSC
5.70 6.30
0.30 0.70
0° 8°
ASM5P23S09A
ASM5P23S05A
3.3V ‘SpreadTrak’ Zero Delay Buffer
Notice: The information in this document is subject to change without notice.
11 of 16
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| PDF Descargar | [ Datasheet ASM5I23S05A.PDF ] | |
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