UH357G-G04-K Datasheet, PDF (4/6 Pages) Unisonic Technologies – CMOS IC

UH357
Preliminary
CMOS IC
 FUNCTIONAL DESCRIPTIONS
Refer to the block diagram above, UH357 is composed of the following blocks:
1. Bias generator
The bias generator provides bias references for the analog blocks.
2. Oscillator
The integrated oscillator provides the clock signal for the digital control logics.
3. Power-on Reset
The block of power-on reset is used to detect the power-up ramp and reset the digital circuits.
4. Chopper Amplifier
The chopper amplifier structure can achieve a higher magnetic sensitivity and dynamically removes both the offset
and flicker noise at the same time.
5. Digital control logics
Generates controlling signals for the Hall sensor and Coil driver and Timer part.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R118-023.a