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AN2491 数据表(PDF) 9 Page - STMicroelectronics |
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AN2491 数据表(HTML) 9 Page - STMicroelectronics |
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9 / 32 page ![]() AN2491 Constants and enums 9/32 3 Constants and enums 3.1 Both modes t_PD Defines the device functional mode. typedef enum { POWER_DOWN, VCO_A_FREQ_DIV_2, VCO_B_FREQ_DIV_2, VCO_EXT_FREQ_DIV_2, VCO_A_FREQ_DIV_4, VCO_B_FREQ_DIV_4, VCO_EXT_FREQ_DIV_4, VCO_A_DIRECT_OUTPUT, VCO_B_DIRECT_OUTPUT, VCO_EXT_DIRECT_OUTPUT } t_PD; t_SERCAL Defines the VCO auto-calibration status. typedef enum { VCO_CAL_DISABLED, VCO_CAL_ENABLED } t_SERCAL; t_CP_SEL Defines the charge pump current typedef enum { CURRENT_I_MIN, CURRENT_2_I_MIN, CURRENT_3_I_MIN, CURRENT_4_I_MIN, CURRENT_5_I_MIN, CURRENT_6_I_MIN, CURRENT_7_I_MIN, CURRENT_8_I_MIN } t_CP_SEL; |
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