（fp5510 ）日益显得重要，成为业界开始关注的焦点。  10-bit dac 120ma vcm driver  with i2c interface  （fp5510 ）the fp5510 is a single 10-bit dac with 120maoutput current voice coil motor vcm driver with an  i2c-compatible serial interface that operates at clock  rates up to400khz. its supply operates from 2.3v to  3.6v. the fp5510 incorporates with a power-on reset  circuit power-down function. power-on reset circuit  ensure when supply power up dac output is to0v  until valid write bit value takes place. in power down  mode the supply current is about 1 956 a. the fp5510 is designed for auto focus operation  includes