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參數(shù)資料
| 型號： | MAX3638ETM+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 800 MHz, OTHER CLOCK GENERATOR, QCC48 |
| 封裝： | 7 X 7 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, TQFN-48 |
| 文件頁數(shù)： | 13/22頁 |
| 文件大?。?/td> | 2523K |
| 代理商： | MAX3638ETM+ |
Low-Jitter, Wide Frequency Range,
Programmable Clock Generator with 10 Outputs
MAX3638
20
Layout Considerations
The inputs and outputs are the most critical paths for
the MAX3638; great care should be taken to minimize
discontinuities on the transmission lines. Here are some
suggestions for maximizing the performance of the
MAX3638:
An uninterrupted ground plane should be positioned
beneath the clock outputs. The ground plane under
the crystal should be removed to minimize capaci-
tance.
Supply decoupling capacitors should be placed close
to the supply pins, preferably on the same side of the
board as the MAX3638.
Take care to isolate input traces from the MAX3638
outputs.
The crystal, trace, and two external capacitors should
be placed on the board as close as possible to the
XIN and XOUT pins to reduce crosstalk of active sig-
nals into the oscillator.
Maintain 100ω differential (or 50ω single-ended) trans-
mission line impedance into and out of the part.
Provide space between differential output pairs to
reduce crosstalk, especially if the outputs are operat-
ing at different frequencies.
Use multilayer boards with an uninterrupted ground
plane to minimize EMI and crosstalk.
Refer to the MAX3638 evaluation kit for more information.
Chip Information
PROCESS: BiCMOS
Pin Configuration
TOP VIEW
+
THIN QFN
(7mm × 7mm × 0.8mm)
13
14
15
16
17
18
19
20
21
22
23
24
DB1
DB0
DA1
DA0
DC1
DC0
*EP
*THE EXPOSED PAD OF THE QFN PACKAGE MUST BE SOLDERED TO GROUND FOR PROPER THERMAL AND ELECTRICAL OPERATION.
QA_CTRL2
VCCQCC
QCC
QC
VCCQC
48
47
46
45
44
43
42
41
40
39
38
37
1
2
3
4
5
6
7
8
9
10 11 12
CIN
DIN
QB_CTRL
QA_CTRL1
QB2
QB1
QB0
VCCQB
DP
RES
V CCA
QC_CTRL
DF0
DF1
PLL_BP
IN_SEL
V CC
XOUT
XIN
DM
36 35 34 33 32 31 30 29 28 27 26 25
V CCQA
QA4
QA3
QA2
QA1
QA0
V CCQA
MAX3638
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3638ETM+ | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Low Jitter Programmable 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(shù)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 |
| MAX3638ETM+T | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Low Jitter Programmable 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(shù)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 |
| MAX3638EVKIT+ | 功能描述:計時器和支持產(chǎn)品 Not Available From Mouser RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| MAX3639ETM+ | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Low Jitter Programmable 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(shù)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 |
| MAX3639ETM+T | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Low Jitter Programmable 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(shù)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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