LC898212XC-MH

Overview

The LC898212XC-MH is an Auto Focus (AF) controller LSI manufactured by onsemi. It integrates a feedback control system for AF, featuring a digital equalizer circuit with adjustable coefficients and a CI/FI interface. The device includes a 10-bit ADC with two input channels, an 8-bit DAC with two outputs for Hall offset and constant current bias, and a single-channel power amplifier operational amplifier. A 48MHz internal oscillator with frequency adjustment and a PWM pulse generator are also integrated. It functions as a single-chip motor driver with a saturated H-bridge for one channel. Logic operates at 1.2V internally, while AVDD and VM supply rails range from 2.6V to 3.6V.

Feature Summary

• Integrates a complete auto-focus control loop with digital equalization and CI/FI interface support
• Combines signal conversion components including a 10-bit ADC and 8-bit DAC within a single chip
• Includes a built-in power amplifier and a saturated H-bridge motor driver for direct actuator control
• Features an internal 48MHz oscillator with frequency adjustment capabilities

Applications

• Auto-focus systems in mobile camera modules
• Compact imaging devices requiring integrated motor drive and control
• Consumer electronics with optical focusing requirements

Procurement Notes

Verify the specific suffix MH against official onsemi documentation to confirm pinout, thermal characteristics, or packaging variations compared to standard LC898212XC variants. Ensure compatibility with the target application's voltage levels and interface protocols before procurement. Cross-reference the latest datasheet revision for any updates to electrical specifications or recommended operating conditions.

Selection Notes

Select this component when a single-chip solution for auto-focus control and motor driving is required. It is suitable for applications needing integrated analog front-end processing, digital control logic, and power output stages. Consider the 2.6V to 3.6V supply range and the integration of ADC/DAC for simplified board design in compact form factors.

Part Context

The LC898212XC series belongs to onsemi's portfolio of image sensor supporting components, specifically designed for camera module applications. This family focuses on integrating complex control logic with power drivers to reduce component count and board space in mobile and consumer imaging devices.

Replacement Considerations

Check for LC898212XA or LC898212XD if the MH suffix denotes a specific package or tape-and-reel variation not explicitly detailed in general summaries. Verify functional equivalence regarding the CI/FI interface and motor driver capabilities.