A research for developing a kind of smart spectral imaging detection technique based on the electrically tunable liquidcrystal
(LC) FP structure is launched. It has some advantages of low cost, highly compact integration, perfuming
wavelength selection without moving any micro-mirror of FP device, and the higher reliability and stability. The
controlling system for hyper-spectral imaging array based on LC-FP device includes mainly a MSP430F5438 as its core.
Considering the characteristics of LC-FP device, the controlling system can provide a driving signal of 1-10 kHz and 0-
30Vrms for the device in a static driving mode. This paper introduces the hardware designing of the control system in
detail. It presents an overall hardware solutions including: (1) the MSP430 controlling circuit, and (2) the operational
amplifier circuit, and (3) the power supply circuit, and (4) the AD conversion circuit. The techniques for the realization
of special high speed digital circuits, which is necessary for the PCB employed, is also discussed.