AK2345 Datasheet (Asahi Kasei Microsystems)

AK2345, FRS CTCSS Encoder/Decoder

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.

By sending that CTCSS simultaneously with the voice signal during

AK2345 Features

* 1. CTCSS (Continuous Tone Controlled Squelch System) Encoder/Decoder. 2. Programmable for up to 50 CTCSS frequencies. 3. Integrated CTCSS signal elimination filter. 4. Built-in Adder TX CTCSS/CDCSS and voice signal. 5. Built-in high speed CTCSS Decoder. 6. Conform to CDCSS. (Continuous Digital Contr