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參數(shù)資料
| 型號(hào)： | ASM2I99446-32-ER |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 英文描述： | Aluminum Electrolytic Capacitor; Capacitor Type:Motor Start/Motor Run; Voltage Rating:450VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-40 C to +85 C; Capacitance:11000uF RoHS Compliant: Yes |
| 中文描述： | 99446 SERIES, LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | 7 X 7 MM, TQFP-32 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大?。?/td> | 575K |
| 代理商： | ASM2I99446-32-ER |
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July 2005
rev 0.4
ASM2I99446
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.
2.5V and 3.3V LVCMOS Clock Distribution Buffer
Features
Configurable
distribution buffer
Compatible to single, dual and mixed 3.3V/2.5V
Voltage supply
Wide range output clock frequency up to 250MHz
Designed for mid-range to high-performance
telecom, networking and computer applications
Supports applications requiring clock redundancy
Max. output skew of 200pS (150pS within one
bank)
Selectable output configurations per output bank
Tristatable outputs
32 lead LQFP & TQFP Packages
Ambient operating temperature range of -
-40 to 85°C
10
outputs
LVCMOS
clock
Functional Description
The ASM2I99446 is a 2.5V and 3.3V compatible 1:10 clock
distribution buffer designed for low-voltage mid-range to
high-performance telecom, networking and computing
applications. Both 3.3V, 2.5V and dual supply voltages are
supported for mixed-voltage applications. The ASM2I99446
offers 10 low-skew outputs and 2 selectable inputs for clock
redundancy. The outputs are configurable and support 1:1
and 1:2 output to input frequency ratios. The ASM2I99446
is specified for the extended temperature range of -40°C to
85°C.
The ASM2I99446 is a full static fanout buffer design
supporting clock frequencies up to 250MHz. The signals
are generated and retimed on-chip to ensure minimal skew
between the three output banks. Two independent
LVCMOS compatible clock inputs are available. This
feature supports redundant clock sources or the addition of
a test clock into the system design. Each of the three
output banks can be individually supplied by 2.5V or 3.3V
supporting mixed voltage applications. The FSELx pins
choose between division of the input reference frequency
by one or two. The frequency divider can be set individually
for each of the three output banks. The ASM2I99446 can
be reset and the outputs are disabled by deasserting the
MR/OE pin (logic high state). Asserting MR/OE will enable
the outputs.
All inputs accept LVCMOS signals while the outputs
provide LVCMOS compatible levels with the capability to
drive terminated 50
transmission lines. Please consult the
ASM2I99456 specification for a 1:10 mixed voltage buffer
with LVPECL compatible inputs. For series terminated
transmission lines, each of the ASM2I99446 outputs can
drive one or two traces giving the devices an effective
fanout of 1:20. The device is packaged in a 7x7mm
2
32-lead LQFP and TQFP Packages.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ASM2I99446-32-ET | Aluminum Electrolytic Capacitor; Capacitor Type:Motor Start/Motor Run; Voltage Rating:200VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-40 C to +85 C; Capacitance:5700uF RoHS Compliant: Yes |
| ASM2I99446G-32-ER | 2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99446G-32-ET | CONV DC-DC 120W 48VIN 1.2V SMD |
| ASM2I99446G-32-LR | 2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99446G-32-LT | 2.5V and 3.3V LVCMOS Clock Distribution Buffer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ASM2I99446-32-ET | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99446-32-LR | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99446-32-LT | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99446G-32-ER | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V and 3.3V LVCMOS Clock Distribution Buffer |
| ASM2I99446G-32-ET | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V and 3.3V LVCMOS Clock Distribution Buffer |
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