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參數資料
| 型號： | MAX9489 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Multiple-Output Network Clock Generator |
| 中文描述： | 多輸出網絡時鐘發生器 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 176K |
| 代理商： | MAX9489 |
General Description
The MAX9489 clock generator provides multiple clock
outputs, ideal for network routers. The MAX9489 pro-
vides 15 buffered clock outputs, each independently
programmable to any of 10 individual frequencies:
133MHz, 125MHz, 100MHz, 83MHz, 80MHz, 66MHz,
62.5MHz, 50MHz, 33MHz, or 25MHz. All of the outputs
are single-ended LVCMOS. The MAX9489 is controlled
through its I
2
C interface.
At power-up, the frequency of output CLK1 is set by the
tri-level input SEL to 100MHz, 125MHz, or 133MHz,
while all other outputs are logic low. All outputs are then
programmable to any available frequency through the
I
2
C interface. Additionally, all output frequencies are
adjustable up or down, by a margin of 5% or 10%,
through the I
2
C interface.
The MAX9489 requires a 25MHz reference that can be
either a crystal or an external clock signal. The
MAX9489 requires a +3.0V to +3.6V power supply and
is available in a 32-pin thin QFN package with an
exposed pad for heat removal.
Applications
Network Routers
Telecom/Networking Equipment
Storage Area Networks/Network Attached
Storage
Features
15 LVCMOS Outputs with 10 Independently
Programmable Frequencies: 133MHz, 125MHz,
100MHz, 83MHz, 80MHz, 66MHz, 62.5MHz, 50MHz,
33MHz, and 25MHz
25MHz Crystal or Clock Input Reference
Programmable Through I
2
C Interface
Programmable Output Frequency Margin of ±5%
or ±10%
Pin-Selectable Power-Up Frequency for CLK1
Output: 100MHz, 125MHz, or 133MHz
Low Output Period Jitter: < 48ps
RMS
Output-to-Output Skew < 200ps
Available in 32-Lead, 5mm x 5mm x 0.8mm,
Thin QFN Package
Operates from +3.0V to +3.6V Power Supply
Power Dissipation 450mW (typ)
Extended Temperature Range: -40°C to +85°C
M
Multiple-Output Network Clock Generator
________________________________________________________________
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
19-3385; Rev 0; 8/04
PART
TEMP RANGE
PIN-PACKAGE
MAX9489ETJ
-40
°
C to +85
°
C
32 Thin QFN-EP*
5mm x 5mm x 0.8mm
GND
1
SCL
2
SDA
3
SEL
4
AV
DD
5
X1
6
X2
7
AGND
8
V
DD
CLK12
24
23
CLK11
22
CLK10
21
V
DD
CLK9
20
19
CLK8
18
CLK7
17
C
9
C
10
C
11
V
D
12
C
13
C
14
C
15
V
D
16
V
D
32
S
31
S
30
G
29
V
D
28
C
27
C
26
C
25
MAX9489
THIN QFN-EP
TOP VIEW
EXPOSED PAD (GND)
Pin Configuration
MAX9489
25MHz
10pF
10pF
X1
AV
DD
X2
SDA
SCL
SA0
SA1
SEL
0.1
μ
F
AGND
GND
CLK15
CLK1
V
DD
V
DD
V
DD
V
DD
V
DD
+3.3V
+3.3V
SERIAL
INTERFACE
CLOCK
OUTPUTS
0.1
μ
F x 5
Typical Operating Circuit
I
2
C is a trademark of Philips Corp.
Purchase of I
2
C components of 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 compo-
nents 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.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX9489ETJ | Multiple-Output Network Clock Generator |
| MAX9491ETP | Factory-Programmable, Single PLL Clock Generator |
| MAX9491EUD | Factory-Programmable, Single PLL Clock Generator |
| MAX9491 | Factory-Programmable, Single PLL Clock Generator |
| MAX9492 | Multiple-Output Clock Generator with Spread Spectrum |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9489ETJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9491ETP010 | 功能描述:時鐘發生器及支持產品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX9491ETP010+ | 功能描述:時鐘發生器及支持產品 Factory-Prog Single PLL Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX9491ETP010+T | 功能描述:時鐘發生器及支持產品 Factory-Prog Single PLL Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX9491ETP010-T | 功能描述:時鐘發生器及支持產品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
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