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AK2345 - FRS CTCSS Encoder/Decoder

General 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

  • 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 Controlled Squelch System) 7. Integrated voice signal circuits such as a limiter, splatter filter, etc. 8. Built-in (3.6864 MHz or 4.194304 MHz) oscillator circuit with crystal oscillator. 9. Control regis.

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Other Datasheets by AKM (Asahi Kasei Microdevices)

Part Number Description
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ASAHI KASEI [AK2345] AK2345 FRS CTCSS Encoder/Decoder 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 Controlled Squelch System) 7. Integrated voice signal circuits such as a limiter, splatter filter, etc. 8. Built-in (3.6864 MHz or 4.194304 MHz) oscillator circuit with crystal oscillator. 9. Control register controlled via serial interface. 10. CMOS Process low voltage operation. (1.8V…5.5V) 11. Compact plastic package is used.