The CN3938V is single 10-bit DAC with 130mA output current source/sink capability. Designed for bi-directional linear control of voice co±il motors, the CN3938V is capable of operating voltage from 2.3V to 5.5V. The DAC is controlled via a I2C serial interface that operates DAC by clock rates up to 1000kHz. The CN3938V incorporates with a UVLO reset circuit, power-down function, and exactly matched sense resistor. UVLO reset circuit ensure when supply power up, DAC output is to 0V until valid write-bit value takes place. It has a power down features that reduces the current consumption of the device to 1uA maximum. The CN3938V is designed for auto focus and optical zoom camera phones, digital still cameras, and camcorders applications. The I2C Write/Read address for the CN3938V is 0x18/0x19 respectively.
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特點(diǎn)
Supply Voltage: 2.3 to 5.5V Fast Mode plus(1MHz) I2C Interface available 1.8V Current souring/sinking of ±130mA Ramp control circuit Advanced SRC mode 10-bit D-to-A converter 194µA Iout resolution Low current sleep mode WLCSP package for minimum footprint
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優(yōu)勢特性· 更大的驅(qū)動電流· 更多Slew Rate Control ，(LSC1/2/4/8code/step；EDLC;SAC1/2.5/3.5/6)· 更低功耗Isd@pd=1 <0.1uA;Isd@code≠512 <0.4mA，Isd@code=512 <0.35mA;SDA pull-down R 20mΩ· 溫度對電流精度影響更低7uA/10?C· 更優(yōu)秀的線性度 DNL:<0.3LSB;INL:<0.8 LSB· 更多保護(hù) 支持OCP; UVLO; ESD(HBM)>6KV
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