LC898217XH is the AF control LSI. It consists of 1 system of feedback circuit for AF control. Built-in equalizer circuit using digital operation. Built-in A/D converter, D/A converter, Constant Current Driver. LC898217XH contains an internal EEPROM. It easily accomplishes Hall calibration and power-on sequence. Also LC898217XH has fast settling function for quickly moving focus lens. This is suitable for small & thinner camera module.

• Built-in equalizer circuit using digital operation
• - AF control equalize circuit
• - Any coefficient can be specified by 2-wire serial I/F (TWIF)
• Thin package
• Built-in Constant Current Driver
• - 110 mA
• - 1 channel
• 2-wire serial interface
• (The communication protocol is compatible with I
• C)
• Built-in A/D converter
• - Input 1 channel
• Built-in D/A converter
• - Output 2 channel (Hall offset, Constant current bias)
• Built-in VGA- Hall Amp- 1 channel
• Built-in EEPROM- 128 byte (16 byte/page)
• Built-in OSC
• Supply voltage- VDD (2.6 V to 3.3 V)