digital phone

Telephone types can be divided into digital telephones and traditional telephones. The difference between the two lies in whether the signals transmitted are analog signals or digital signals. Digital telephones are different from traditional telephones in that they are less susceptible to interference and eavesdropping during calls, and they have the advantages of simple expandability and cord saving. Since digital phones require high-speed A/D conversion functions and high-speed data processing, including mathematical operations on digital signals, NuMicro M051 is extremely suitable for use in digital phone products.
NuMicro M051 series provides high-performance, low-cost 32-bit Arm® Cortex®-M0 core, running speed up to 50 MHz, wide operating voltage 2.5V ~ 5.5V and industrial temperature -40℃ ~ 105℃, built-in 32-bit hardware multiplication processor and hardware divider, flash memory up to 64 KB and memory memory up to 4 KB, highly integrated 12-bit ADC with conversion rate up to 1 MSPS, built-in high-precision 22 MHz oscillator to reduce system BOM cost; rich peripherals I²Cx2, SPIx2 , UARTx2, anti-theft copy lock code bit function, 96-bit UID chip unique code, 128-bit UCID customer unique code, strong anti-interference ability (ESD 8kV / EFT 4kV), in digital phone applications, the NuMicro M051 series is a very cost-effective s solution.