AK2345
Description
The AK2345 is an IC which supports CTCSS (Continuous Tone Controlled Squelch System), compatible with the TIA/EIA-603 standard. A single CTCSS may be selected from among 50 different frequencies within a range of from 67 to 254.1 Hz.
Key Features
- CTCSS (Continuous Tone Controlled Squelch System) Encoder/Decoder.
- Programmable for up to 50 CTCSS frequencies.
- Integrated CTCSS signal elimination filter.
- Built-in Adder TX CTCSS/CDCSS and voice signal.
- Built-in high speed CTCSS Decoder.
- Conform to CDCSS. (Continuous Digital Controlled Squelch System)
- Integrated voice signal circuits such as a limiter, splatter filter, etc.
- Built-in (3.6864 MHz or 4.194304 MHz) oscillator circuit with crystal oscillator.
- Control register controlled via serial interface.
- CMOS Process low voltage operation. (1.8V…5.5V)
