CSU8RF3422 datasheet(74/131 Pages) CHIPSEA

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CSU8RF3421/CSU8RF3422/CSU8RF3423

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3.8.2 转换时间

表 48 转换时间说明表(1)

CLKDIV

(2)

CALIF

SRADCKS

SRADACKS

AD 转换时间

(3)

指令周

期=4 个

时钟周

期

1/ ( (16MHz / 4) / 2) × (12 + 0 + 16) = 14us

1/ ( (16MHz / 4) / 2) × (12 + 0 + 8) = 10us

1/ ( (16MHz / 4) / 4) × (12 + 0 + 16) = 28us

1/ ( (16MHz / 4) / 4) × (12 + 0 + 8) = 20us

1/ ( (16MHz / 4) / 4) × (12 + 0 + 4) = 16us

1/ ( (16MHz / 4) / 8) × (12 + 0 + 16) = 56us

1/ ( (16MHz / 4) / 8) × (12 + 0 + 8) = 40us

1/ ( (16MHz / 4) / 8) × (12 + 0 + 4) = 32us

1/ ( (16MHz / 4) / 8) × (12 + 0 + 2) = 28us

1/ ( (16MHz / 4) / 2) × (12 + 1 + 16) = 14.5us

1/ ( (16MHz / 4) / 2) × (12 + 1 + 8) = 10.5us

1/ ( (16MHz / 4) / 4) × (12 + 1 + 16) = 29us

1/ ( (16MHz / 4) / 4) × (12 + 1 + 8) = 21us

1/ ( (16MHz / 4) / 4) × (12 + 1 + 4) = 17us

1/ ( (16MHz / 4) / 8) × (12 + 1 + 16) = 58us

1/ ( (16MHz / 4) / 8) × (12 + 1 + 8) = 42us

1/ ( (16MHz / 4) / 8) × (12 + 1 + 4) = 34us

1/ ( (16MHz / 4) / 8) × (12 + 1 + 2) = 30us

指令周

期=8 个

时钟周

期

1/ ( (16MHz / 8) / 1) × (12 + 0 + 16) = 14us

1/ ( (16MHz / 8) / 1) × (12 + 0 + 8) = 10us

1/ ( (16MHz / 8) / 2) × (12 + 0 + 16) = 28us

1/ ( (16MHz / 8) / 2) × (12 + 0 + 8) = 20us

1/ ( (16MHz / 8) / 2) × (12 + 0 + 4) = 16us

1/ ( (16MHz / 8) / 4) × (12 + 0 + 16) = 56us

1/ ( (16MHz / 8) / 4) × (12 + 0 + 8) = 40us

1/ ( (16MHz / 8) / 4) × (12 + 0 + 4) = 32us

1/ ( (16MHz / 8) / 4) × (12 + 0 + 2) = 24us

1/ ( (16MHz / 8) / 8) × (12 + 0 + 16) = 112us

1/ ( (16MHz / 8) / 8) × (12 + 0 + 8) = 80us

1/ ( (16MHz / 8) / 8) × (12 + 0 + 4) = 64us

1/ ( (16MHz / 8) / 8) × (12 + 0 + 2) = 56us

1/ ( (16MHz / 8) / 1) × (12 + 1 + 16) = 14.5us

1/ ( (16MHz / 8) / 1) × (12 + 1 + 8) = 10.5us

1/ ( (16MHz / 8) / 2) × (12 + 1 + 16) = 29us

1/ ( (16MHz / 8) / 2) × (12 + 1 + 8) = 21us

1/ ( (16MHz / 8) / 2) × (12 + 1 + 4) = 17us

1/ ( (16MHz / 8) / 4) × (12 + 1 + 16) = 58us

1/ ( (16MHz / 8) / 4) × (12 + 1 + 8) = 42us

1/ ( (16MHz / 8) / 4) × (12 + 1 + 4) = 34us

1/ ( (16MHz / 8) / 4)

× (12 + 1 + 2) = 30us

12 位 AD 转换时间=（1/ADC 时钟频率）× （12+ADC 输入信号获取时间+CALIF）

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