PLL
MS1153
Two-Channel General-Purpose Frequency Synthesizer
Datasheet Download
Overview
The MS1153 is a low-power clock chip that can simultaneously output two clocks with a frequency range of 20kHz to 30MHz and a frequency resolution as low as 1Hz. The chip integrates hard power-down and soft power-down functions, with hard power-down current as low as 100nA and soft power-down current as low as 4mA. The two clock outputs can be selected as direct divided outputs or as differential outputs after passing through a dead-time adjustment module. The output dead time is programmable, enabling the chip to operate in differential clock applications requiring a specific dead time.
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Key Features
- ⚫ Two-channel output clock from 20kHz to 30MHz
- ⚫ Low output jitter
- ⚫ Frequency resolution down to 1Hz
- ⚫ Accepts external crystal frequency: 16MHz~27MHz
- ⚫ Adjustable dead time when outputting differential clock
- ⚫ Programmable output rise time/fall time
- ⚫ Glitch-free frequency switching
- ⚫ Internal core and output stage power supply: 2.5V~3.6V
- ⚫ High internal power supply rejection ratio
- ⚫ Normal operating current: 11mA
- ⚫ Soft power-down current: 4mA
- ⚫ Hard power-down current: 100nA
Key Features
Electronic cigarettes
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Replacement for quartz crystal oscillators
