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音圈馬達(dá)驅(qū)動(dòng)
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型號(hào)：

CN3927ELC 資料下載

The CN3927ELC is single 10-bit DAC with 120mA output current sinking capability. Designed for linear control of voice coil motors, the CN3927ELC is capable of operating voltage from 2.3V to 5.5V. The SAC (Smart Actuator Control) mode is applied to minimize mechanical vibrations automatically. The SAC mode highly improves the actuator’s settling time and tolerance coverage compared with conventional LSC (Linear Slope Control) mode. The DAC is controlled via a I2C serial interface that operates DAC by clock rates up to 400kHz. The CN3927ELC incorporates an internal Power- UP Reset (POR) and power down features using external XSD pin or internal PD bit that reduces the current consumption of the device to be less than 1uA . The CN3927ELC is designed for auto focus and optical zoom camera phones, digital still cameras, and camcorders applications. The I2C address for the CN3927ELC is 0x18.

  • 特點(diǎn)

    Supply Voltage: 2.3 to 5.5V Fast Mode plus I2C Interface available 1.8V Current sinking of 120mA Ramp control circuit Fixed I2C logic thresholds 10-bit D-to-A converter 117µA Iout resolution Low current sleep mode Low current sleep mode

  • 優(yōu)勢(shì)特性
    · 最小芯片面積
    · 輸出電流精度高120mA +/-3mA
    · 溫度對(duì)電流精度影響更低10uA/10?C
    · 線性度高: <1LSB(full range, code1 to code 1023)
    · 響應(yīng)速度更快 ，XSD Start up 10us; VDD Start up 4.8us
    · 更豐富的SRC模式 ，(LSC1/2/4code/step；EDLC;SAC1/2/3/4/5/6)
  • 應(yīng)用