Description
The BD3893FV is a shock sensor signal processing IC for HDD, CD/DVD drive that detects a shock by signal from sensor by connecting an external shock sensor. It is available for shock sensors of voltage sensitivity type and electric charge sensitivity type. This IC incorporates high-resistance (50MW) to compose a charge amplifier.

FEATUREs
1) Available for shock sensor of voltage sensitivity type
   and electric charge sensitivity type
2) Built-in 50MW of resistance for pre-amplifier
3) Available for applications of flag detection type and
   analog signal output type
4) Built-in secondary LPF
5) Cut-off frequency of LPF can be changed to 2k, 4k, 8k and 12k
6) Internal reference voltage selectable
   (Resistance split voltage, band gap voltage)

APPLICATIONs
   HDD, CD, DVD drive