參數(shù)資料
型號: MAX9492ETP
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: XO, clock
英文描述: Multiple-Output Clock Generator with Spread Spectrum
中文描述: 133 MHz, OTHER CLOCK GENERATOR, QCC20
封裝: 5 X 5 MM, 0.80 MM HEIGHT, MO-220WHHC, TQFN-20
文件頁數(shù): 1/11頁
文件大?。?/td> 276K
代理商: MAX9492ETP
General Description
The MAX9492 frequency synthesizer is designed to
generate multiple clocks for clock distribution in net-
work routers or switches. The device provides a total of
six buffered clock outputs (CLK1 to CLK6). CLK1 is the
buffered output of the reference clock. CLK2 through
CLK6 are independently programmable to generate
eight different frequencies based on a 25MHz input
crystal: 133, 125, 83, 66, 62.5, 50, 33, and 25MHz. All
the outputs are LVCMOS single-ended signals. Either a
25MHz crystal or an external clock can serve as the
input reference clock. The MAX9492 incorporates two
phase-locked loops (PLLs) with two internal loop filters.
Select the MAX9492’s output clock frequency by pro-
gramming on-chip registers through the MAX9492’s
I
2
C* interface. The device also features spread-spec-
trum capability to reduce electromagnetic interference
(EMI). This technique allows spreading the fundamental
energy over a wider frequency range, hence reducing
the respective energy amplitude. The output frequency
spectrum is downspread by -1.25% or -2.5%.
The MAX9492 operates from a 3.3V supply and is guar-
anteed over the extended temperature range (-40°C to
+85°C). The device is available in a space-saving,
20-pin, TQFN, 5mm x 5mm package.
Applications
Network Routers
Telecom/Networking Equipment
Storage Area Networks/Network Attached
Storage
Features
o
Five LVCMOS Outputs with Independent
Frequency Selections
o
One Buffered Reference Clock Output
o
Eight Selectable Frequencies: 133, 125, 83, 66,
62.5, 50, 33, and 25MHz
o
Crystal or an Input-Clock-Based Clock Reference
o
Output Frequency Programmed Through I
2
C
Interface
o
0, -1.25%, or -2.5% Selectable Downspreading
Rate
o
Low Output Period Jitter
(Without Spread Spectrum) < 10ps
RMS
o
<220ps Output-to-Output Skew
o
Available in 20-Lead, 5mm x 5mm, TQFN Package
o
+3.3V Supply
o
-40°C to +85°C Extended Temperature Range
M
Multiple-Output Clock Generator
with Spread Spectrum
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
19-3683; Rev 0; 5/05
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX9492ETP -40
°
C to +85
°
C
20 Thi n QFN- E P *
5m m x 5m m x
0.8m m
T2055-3
Typical Operating Circuit and Pin Configuration appear at
end of data sheet.
*
Purchase of I
2
C components from Maxim Integrated Products, Inc., or one of its sublicensed Associated Companies, conveys a
license under the Philips I
2
C Patent Rights to use these components in an I
2
C system, provided that the system conforms to the I
2
C
Standard Specification as defined by Philips.
**
EP = Exposed pad.
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MAX9492ETP+ 功能描述:鎖相環(huán) - PLL Multiple-Output Clock Generator with Spread Spectrum RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
MAX9492ETP+T 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
MAX9492ETP-T 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
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MAX9500EEE+T 功能描述:視頻 IC 3Ch HDTV Filter RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel