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參數(shù)資料
| 型號： | MAX7376CRQT |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Silicon Oscillator with Reset Output |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO5 |
| 封裝： | MO-178AA, SOT-23, 5 PIN |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 673K |
| 代理商： | MAX7376CRQT |
M
Silicon Oscillator with Reset Output
_______________________________________________________________________________________
5
Detailed Description
The MAX7376 is a clock generator with integrated reset
for μCs and UARTs in 3V, 3.3V, and 5V applications
(Figure 1). The MAX7376 is a replacement for crystal
oscillator modules, crystals, or ceramic resonators and
a system-reset IC. The clock frequency is factory
trimmed to specific values. A variety of popular stan-
dard frequencies are available (Table 2). No external
components are required for setting or adjusting the
frequency.
Supply Voltage
The MAX7376 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. See the
Absolute Maximum Ratings
sec-
tion 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 500
or a posi-
tive-supply-connected 250
load to within 400mV of
either supply rail. The clock output remains stable over
the full operating voltage range and does not generate
short output cycles during either power-on or power-off.
A typical startup characteristic is shown in the
Typical
Operating Characteristics
.
Applications Information
Interfacing to a μC Clock Input
The MAX7376 clock output is a push-pull, CMOS, logic
output that directly drives any μP or μC clock input.
There are no impedance-matching issues when using
the MAX7376. The MAX7376 is not sensitive to its posi-
tion on the board and it does not need to be placed right
next to the μP. Refer to the μC data sheet for clock-input
compatibility with external clock signals. The MAX7376
requires no biasing components or load capacitance.
When using the MAX7376 to retrofit a crystal oscillator,
remove all biasing components from the oscillator input.
RST Reset Output Options
The MAX7376 is available with three reset output stage
options: push-pull with active-low output, push-pull with
active-high output, and open drain with active-low out-
put. The RST output is asserted when the monitored
input (V
CC
) drops below the internal V
TH-
threshold and
remains asserted for 100μs after the monitored input
exceeds the internal V
TH+
threshold. The open-drain
RST output requires an external pullup resistor.
Output Jitter
The MAX7376’s jitter performance is given in the
Electrical Characteristics
table as a peak-to-peak value
obtained by observing the output of the MAX7376 for
20s with a 500MHz oscilloscope. Jitter values are
approximately proportional to the period of the output
frequency of the device. Thus, a 4MHz part has
approximately twice the jitter value of an 8MHz part.
The jitter performance of clock sources degrades in the
presence of mechanical and electrical interference.
Pin Description
PIN
1
2
3
4
5
NAME
CLOCK
GND
RST
V
CC
E.C.
FUNCTION
Push-Pull Clock Output
Ground
Reset Output. See the
RST Reset Output Options
section for more details.
Positive Supply Voltage. Bypass V
CC
to GND with a 0.1μF capacitor.
Must Be Externally Connected to V
CC
LOGIC
600kHz TO 10MHz
POR
MUX
RST/RST
CLOCK
BIAS_V
V
CC
MAX7376
Figure 1. Functional Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
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| MAX7376CRQT-T | 制造商:Maxim Integrated Products 功能描述:SILICON OSCILLATOR WITH RESET - Tape and Reel |
| MAX7376CRQW | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Silicon Oscillator with Reset Output |
| MAX7376CRQW-T | 制造商:Maxim Integrated Products 功能描述:SILICON OSCILLATOR WITH RESET - Tape and Reel |
| MAX7376CRRD | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Silicon Oscillator with Reset Output |
| MAX7376CRRD-T | 制造商:Maxim Integrated Products 功能描述:SILICON OSCILLATOR WITH RESET - Tape and Reel |
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