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  ON Semiconductor Electronic Components Datasheet  

LC898217XH Datasheet

Auto Focus (AF) Controller & Driver

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LC898217XH
Auto Focus (AF) Controller & Driver
1. Overview
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.
www.onsemi.com
2. Features
Built-in equalizer circuit using digital operation
- AF control equalize circuit
- Any coefficient can be specified by 2-wire serial I/F (TWIF)
2-wire serial interface
(The communication protocol is compatible with I2C.)
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
Built-in Constant Current Driver
- 110 mA
- 1 channel
Package
- WL-CSP 10-pin
- Pb-Free, Halogen Free
Supply voltage
- VDD (2.6 V to 3.3 V)
WLCSP10, 1.04x2.04x0.265
ORDERING INFORMATION
See detailed ordering and shipping information on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2017
April 2017 - Rev. 0
1
Publication Order Number :
LC898217XH/D


  ON Semiconductor Electronic Components Datasheet  

LC898217XH Datasheet

Auto Focus (AF) Controller & Driver

No Preview Available !

3. Pin Description
LC898217XH
I INPUT
O OUTPUT
B BIDIRECTION
P
2-wire serial interface
SCL I
SDA
B
Hall interface
BIASO
OPINP
OPINM
O
I
I
Driver interface
OUT1
OUT2
O
O
TYPE
Power supply, GND
NC NOT CONNECT
2-wire serial interface clock pin
2-wire serial interface data pin
D/A output (to Hall element)
VGA input (from Hall element)
VGA input (from Hall element)
Driver output (to Actuator)
Driver output (to Actuator)
Power supply pin
VDD
VSS
P
P
Power supply
GND
Test pin
PORT
B Analog test signal input/output
Convergence detection monitor output
VSYNC input
* Process when pins are not used
PIN TYPE “O” – Ensure that it is set to OPEN.
PIN TYPE “I” – OPEN is inhibited. Ensure that it is connected to the VDD or VSS even when it is unused.
(Please contact ON Semiconductor for more information about selection of VDD or VSS.)
PIN TYPE “B” – If you are unsure about processing method on the pin description of pin layout table, please contact us.
Note that incorrect processing of unused pins may result in defects.
* In case of connecting PORT pin with HOST CPU
When LC898217XH is power off and HOST CPU is power on, a HOST CPU pin connected with PORT pin have to be
fixed "L" level.
www.onsemi.com
2


Part Number LC898217XH
Description Auto Focus (AF) Controller & Driver
Maker ON Semiconductor
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