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BU2624 数据表(PDF) 7 Page - Rohm |
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BU2624 数据表(HTML) 7 Page - Rohm |
7 / 9 page 167 Audio ICs BU2624AF Frequency counter (1) Structure (2) How the frequency counter operates When control data CT equals 1, the 20-bit counter and the amp go into operation. When CT equals 0, amp input goes to pulldown and the counter is reset. Measuring time (gate pulse) is selected (8 ms / 16 ms) on the basis of control data GT. When control data CT equals 0, the counter is reset. (3) Explanation of output data D0: LSB D19: MSB Unlock detection When control data GT equals 1, or CT equals 1, the un- lock detection circuit goes into operation for 8ms. When CT equals 1, the unlock detection circuits stops operating before the frequency counter gate pulse is emitted. When CT equals 0, or GT equals 0, the unlock detection circuit is reset. |
类似零件编号 - BU2624 |
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类似说明 - BU2624 |
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