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1 Over View
RAA305350MGBM is general-purpose 3CH H-bridge driver IC .This is a small size single chip IC constituted by the
control block built in 32 bits RISC microcomputer and DSP, and by the driver block built in hall signal processing
circuit.
2 Features
Applications
Smart phone, Tablet, Camera, Sensing and Actuator Control
Driver Block
[CH1/CH2/CH3]
(1)Built-in 3 channels H-bridge drivers
Composition : CH1, CH2, CH3
(2)Built-in 3 channels Hall signal processing circuits
Composition :
Constant Current Bias --- 3 channels
Gain Amp --- 3 channels (with gain resistor)
(3)Built-in 12bit-ADC with 6 channels input selector
(4)Configurable for VCM/Piezo/SMA/BLDC motor drive
(5)PWM/Linear drive
(6)Other
CH3(AF Control case);Supports open/closed loop control
Controller
(1)Built-in 32bit RISC CPU
(2)Built-in Code Flash ROM(48KB)
(3)Built-in RAM(8KB) for program
(4)Built-in DSP 2 channels (GREEN_DSP_V2)
(5)Built-in SPI 2 channels
(6)Built-in Timer (16bit) 4 channels
(7)Built-in IIC serial interface 1 channel
(8)Built-in General purpose I/O 8lines (with interruption function)
(9)Clock frequency : Built-in PLL (x4, x6, x8, x12, x16)
For system clock ------------------------- 32.4MHz(Max)
For PWM clock of motor control ------- 162MHz(Max)
For SPI serial clock ----------------------- Master 4MHz(Max), Slave 2MHz(Max)
For IIC serial clock ----------------------- 1MHz(Max, Fast Mode+)
Others
(1)Built in POR(power on reset), TSD(thermal shut down)
(2)Built in Power save mode
(3)Built in IS/AF Driver control synchronized signal from Image Sensor (OIS case)
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