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參數(shù)資料
| 型號(hào)： | MK3235-02STR |
| 元件分類： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 14.3 MHz, OTHER CLOCK GENERATOR, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 61K |
| 代理商： | MK3235-02STR |
MK3235
Handheld System Clock Synthesizer
MDS 3235 E
1
Revision 010302
Integrated Circuit Systems, Inc. 525 Race Street San Jose CA 95126 (408)295-9800 www.icst.com
Input crystal frequency of 32.768 kHz
Lowest power solution available
Lowest profile clock solution where height is critical
Three output clocks
3.3V or 5.0V operation
Duty cycle of 45/55
14.3 MHz or 14.3 MHz + Comm clock power downs
Separate battery supply pin for 32 kHz runs to 2V
IDD less than 4A when 32 kHz running
Packaged in 16 pin narrow SOIC
The MK3235 is the smallest size, lowest power
system clock synthesizer available. It is the ideal
way to generate clocks for handheld computers,
such as PDAs, PICs, and other devices where
low power is required. Using analog Phase-
Locked Loop (PLL) techniques, the device
operates from a single 32.768 kHz crystal to
produce the 32.768kHz, 14.318MHz, and serial
communications output clock.
The device has three power down modes for the
14.3 MHz, communications, and 32.768 kHz
clock.
The MK3235 can save board space and cost
even if it only replaces the 32 kHz oscillator
circuitry and one additional surface mount crystal
or oscillator. The extremely low IDD, the ease of
surface mounting, and the power down
capability are added benefits in using the part.
Description
Features
Crystal
Oscillator
VDD
GND
14.318MHz
Clock Synthesis
and Control Circuitry
14.3 MHz
32.768 kHz
3.686 MHz
Output
Buffer
Output
Buffer
Output
Buffer
32.768 kHz
crystal
Block Diagram
VDD32
PDCOMM
PD14
PD
X1
X2
Communications
Clock Synthesis
and Control Circuitry
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| MK3235-02SLF | 14.3 MHz, OTHER CLOCK GENERATOR, PDSO16 |
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