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DS1099U-AOA1 Datasheet(PDF) 6 Page - Maxim Integrated Products |
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DS1099U-AOA1 Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 7 page The divider settings, X0 and X1, are factory pro- grammed. When placing an order for the DS1099, it is required to specify X0 and X1. If only one output is used, it is recommended that the unused output be disabled. The oscillator outputs are asynchronous. Since the master oscillator and dividers are free running, even when both outputs are disabled, the state of the output when OE becomes active is unknown for up to half an fOUT period. When OE is brought low, the output is enabled instantaneously. Likewise, if the output is dis- abled while outputting the low half of a cycle, the out- put instantaneously is forced high before the current cycle is completed. Applications Information Power-Supply Decoupling To achieve best results, it is highly recommended that a decoupling capacitor is used on the IC power-supply pins. Typical values of decoupling capacitors are 0.01µF and 0.1µF. Use a high-quality, ceramic, surface-mount capacitor, and mount it as close as possible to the VCC and GND pins of the IC to minimize lead inductance. a DIVISOR fOUT A 20 1.048MHz B 21 0.524MHz C 22 0.262MHz D 23 0.131MHz E 24 65.50kHz F 25 32.750kHz G 26 16.375kHz H 27 8.187kHz J 28 4.093kHz K 29 2.046kHz L 210 1.023kHz M 211 511.7Hz N 212 255.8Hz P 213 127.9Hz Q 214 63.96Hz R 215 31.98Hz S 216 16Hz T 217 8Hz U 218 4Hz W 219 2Hz X 220 1Hz Y 221 0.5Hz Z 222 0.25Hz Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Branding Information The package branding includes a0 and a1 on the top of the package next to or below 1099. Ordering Information (continued) Chip Topology SUBSTRATE CONNECTED TO Ground DS1099 Low-Frequency Dual EconOscillator www.maximintegrated.com Maxim Integrated │ 6 |
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