CJMCU-5351 Si5351A Si5351 I2C Clock Generator Signal Generator. CJMCU-5351 Si5351A Si5351 I2C Signal Generator. Never hunt around for another crystal again, with the Si5351A clock generator! This chip has a 25MHz crystal reference and internal PLL and dividers so it can generate just about any frequency, from <8 KHz up to 150+ MHz.
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