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MAX7376CMTP Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX7376CMTP Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 8 page Silicon Oscillator with Reset Output 6 _______________________________________________________________________________________ MAX7376 CLOCK OSC1 OSC2 µC RST VCC SUPPLY VOLTAGE E.C. RST/RST Typical Application Circuit The MAX7376 is relatively immune to vibration, shock, and EMI influences, and thus provides a considerably more robust clock source than crystal or ceramic res- onator-based oscillator circuits. Initial Power-Up and Operation The clock starts up within 30µs (typ) after VCC has risen above the reset threshold. The reset output remains asserted for 100µs after the reset threshold is reached. Extended Temperature Operation The MAX7376 was tested to +135°C during product characterization and shown to function normally at this temperature (see the Typical Operating Characteristics). However, production test and qualifi- cation is only performed from -40°C to +125°C at this time. Contact the factory if operation outside this range is required. Power-Supply Considerations The MAX7376 operates with a 2.7V and 5.5V power- supply voltage. Good power-supply decoupling is needed to maintain the power-supply rejection perfor- mance of the MAX7376. Bypass VCC to GND with a 0.1µF surface-mount ceramic capacitor. Mount the bypass capacitor as close to the device as possible. If possible, mount the MAX7376 close to the µC’s decou- pling capacitor so that additional decoupling is not required. A larger value bypass capacitor is recom- mended if the MAX7376 is to operate with a large capacitive load. Use a bypass capacitor value of at least 1000 times that of the output load capacitance. SUFFIX RESET THRESHOLD (V) R 2.57 M 4.29 SUFFIX STANDARD FREQUENCY (MHz) AA 32.768kHz MG 1 OK 1.8432 QT 3.39545 QW 3.6864 RD 4 RH 4.1943 TP 8 Table 1. Standard Reset Threshold Levels Table 2. Standard Frequencies For all other reset threshold options, contact factory. For all other reset threshold options, contact factory. |
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