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參數(shù)資料
| 型號(hào)： | MAX7381 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 3-Pin Silicon Oscillator |
| 中文描述： | 3引腳硅振蕩器 |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大?。?/td> | 543K |
| 代理商： | MAX7381 |
M
3-Pin Silicon Oscillator
4
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V+ = 5V, C
L
= 10pF, 16MHz output, T
A
= +25°C, unless otherwise noted.)
Detailed Description
The MAX7381 is a replacement for ceramic resonators,
crystals, and crystal-oscillator modules as the clock
source for microcontrollers and UARTs in 3V, 3.3V, and
5V applications. The MAX7381 is an integrated oscilla-
tor, supplied at specific frequencies just like crystals
and resonators. A variety of popular standard frequen-
cies are available. No external components are
required for setting or adjusting the frequency.
Supply Voltages
The MAX7381 has been designed for use in systems
with nominal supply voltages of 3V, 3.3V, or 5V and is
specified for operation with supply voltages in the 2.7V
to 5.5V range. Operation outside this range is not guar-
anteed. See the
Absolute Maximum Ratings
for limit
values of power-supply and pin voltages.
Oscillator
The clock output is a push-pull configuration and is
capable of driving a ground-connected 1k
load or a
positive-supply-connected 500
load to within 400mV
of either supply rail. The clock output remains stable
over the full operating voltage range. A typical startup
characteristic is shown in the
Typical Operating
Characteristics
section.
Output Jitter
The MAX7381’s jitter performance is given in the
Electrical Characteristics
table as a peak-to-peak value
obtained by observing the output of the MAX7381 for
20s with a 500MHz oscilloscope. Jitter measurements
are approximately proportional to the period of the out-
put frequency of the device.
The jitter performance of all clock sources degrades in
the presence of mechanical and electrical interference.
The MAX7381 is relatively immune to vibration, shock,
and EMI influences, and thus provides a considerably
more robust clock source than crystal- or ceramic-
resonator-based oscillator circuits.
Applications Information
Interfacing to a Microcontroller
Clock Input
The MAX7381 clock output is a push-pull, CMOS, logic
output, which directly drives any microprocessor (μP)
or microcontroller (μC) clock input. There are no imped-
ance-matching issues when using the MAX7381.
Operate the MAX7381 and microcontroller (or other
clock-input device) from the same supply voltage.
Refer to the microcontroller data sheet for clock-input
compatibility with external clock signals.
Pin Description
PIN
NAME
FUNCTION
1
V+
Positive Supply Voltage. Bypass V+
to GND with a 0.1μF surface-mount
ceramic capacitor.
2
CLOCK
Clock Output. CLOCK is a push-
pull output.
3
GND
Ground
CLOCK OUTPUT WAVEFORM
WITH C
L
= 50pF
MAX7381 toc10
CLOCK
1V/div
20ns/div
V+ = 3.3V
CLOCK OUTPUT WAVEFORM
WITH C
L
= 100pF
MAX7381 toc11
CLOCK
1V/div
20ns/div
V+ = 3.3V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7381AUR106-T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)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(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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX7381AUR116-T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)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(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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX7381AUR126-T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)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(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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX7381AUR136-T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)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(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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX7381AUR146-T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)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(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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
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