DS1085LZ-25+

MAXIM INTEGRATED PRODUCTS  DS1085LZ-25+  芯片, 定时器

The is a 3.3V EconOscillator frequency synthesizer in 8 pin NSOIC package. An internal master oscillator can be programmed from 33MHz to 66MHz with resolution of 25KHz. A 2-wire serial interface allows in-circuit, on the fly programming of master oscillator, prescalers & divider. A programmable 3bit prescaler divide by 1, 2, 4 or 8 permits generation of reference oscillator output OUT0 from master ranging from 4.13MHz to 66MHz. A second independent prescaler and 1 to 1025 divider allows generation of main oscillator output OUT1 from 4.1KHz to 66MHz. The two outputs although synchronous with master can be independently programmed. The combination of programmable master oscillator, prescalers and dividers allow generation of thousands of user specified frequencies. All master oscillator, prescaler and divider settings are stored in NV EEPROM memory providing default value on power-up that allows it to be used as a standalone oscillator.

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Supply voltage range from 3V to 3.6V

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Operating temperature range from 0°C to 70°C

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Dual synchronous output user programmable synthesizer does not requires external timing components

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Default master oscillator frequency of 50.9MHz

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Can be used with factory or user programmed values

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Can be used as standalone oscillator/dynamically programmed processor controlled peripheral device

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0.75% absolute accuracy

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External timing components are not required

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Active supply current of 15mA and standby current power-down mode of 1.5mA