Description:The ICS7152-11 is a clock generator for EMI (Electro Magnetic Interference) reduction (see datasheet for frequency ranges and multiplier ratios). Spectral peaks can be attenuated by slightly modulating the oscillation frequency. Both down and center spread profiles are selectable. Center spread maintains an average frequency equal to an unspread clock. Down spread meets maximum frequency specs over the entire modulation cycle.
Renesas provides a recommended PCB layout guide in their application note (AP6111) for the 7152M-11LF, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
Renesas recommends following the guidelines outlined in their EMC application note (AP6112) for the 7152M-11LF, which includes information on PCB design, component selection, and shielding to minimize electromagnetic interference and ensure compliance with relevant standards.
The datasheet provides general guidelines for capacitor selection, but Renesas recommends using a low-ESR capacitor (e.g., ceramic or film capacitor) with a value between 1-10 μF for CIN and a value between 10-22 μF for COUT, depending on the specific application and output current requirements.
The 7152M-11LF has built-in OCP and SCP features, but Renesas recommends implementing additional external protection mechanisms, such as fuses or current-sensing resistors, to ensure reliable operation and prevent damage to the device or surrounding components.
Renesas provides thermal derating guidelines in the datasheet, which recommend reducing the output current by 1.5% per degree Celsius above 50°C to ensure reliable operation and prevent overheating.
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7152M-11LF Overview
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