Introduction
This design guide describes the design of a low power consumption optical mouse using the new Avago Technologies ADNB-3532 low power small form factor optical mouse sensor, Texas Instruments MSP430F1222 microcontroller and Nordic Semiconductor nRF2402 2.4GHz RF transmitter. The receiver dongle is implemented with a Nordic Semiconductor nRF2401A 2.4GHz RF transceiver in conjunction with a Cypress CY7C63231A enCoRe™ USB controller. This reference design kit provides a power efficient and feature-rich solution in one small and slim package.

FEATUREs
• Low Supply Voltage Range 1.8 V to 3.6 V
• Ultra Low-Power Consumption:
   − Active Mode: 200 µA at 1 MHz, 2.2 V
   − Standby Mode: 0.7 µA
   − Off Mode (RAM Retention): 0.1 µA
• Five Power Saving Modes
• Wake-Up From Standby Mode in less than 6 µs
• 16-Bit RISC Architecture, 125 ns Instruction Cycle Time
• Basic Clock Module Configurations:
   − Various Internal Resistors
   − Single External Resistor
   − 32-kHz Crystal
   − High Frequency Crystal
   − Resonator
   − External Clock Source
• 16-Bit Timer_A With Three Capture/Compare Registers
• 10-Bit, 200-ksps A/D Converter With Internal
   Reference, Sample-and-Hold, Autoscan, and Data
   Transfer Controller
• Serial Communication Interface (USART0) With
   Software-Selectable Asynchronous UART or
   Synchronous SPI
• Serial Onboard Programming, No External
   Programming Voltage Needed Programmable Code
   Protection by Security Fuse
• Supply Voltage Brownout Protection
• 4KB + 256B Flash Memory 256B RAM
• Available in 28-Pin Plastic SOWB, 28-Pin Plastic TSSOP,
   and 32-Pin QFN Packages