AK2345 Description
The AK2345 is an IC which supports CTCSS (Continuous Tone Controlled Squelch System), patible 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. By sending that CTCSS simultaneously with the voice signal during transmission, and by setting the audio circuit so that it operates only when a CTCSS of that frequency is detected, it is...
AK2345 Key Features
- Pin assignment