AK2342B 2-WAY RADIO PRODUCT ICs AK2342B CTCSS Encoder/Decoder with Scrambler 1. Encoder/Decoder for CTCSS (Continuous Tone Controlled Squelch System) 2. Programmable for up to 50 frequencies 3. Built-in high speed tone decoder (Typ. : 150ms@67Hz) 4. Integrated voice signal circuits for emphasis, limiter, splatter filter, etc. 5. Integrated scrambler for privacy 6. Integrated tone signal elimination filter 7. Can be linked with a DCS (Digitally Coded Squelch) system 8. Integrated oscillator circuit (3.6864 MHz) using a crystal oscillator 48-pin LQFP (7 7 1.6 mm) 9. Low voltage operation: 1.8 V to 5.5 V 10. 48-pin LQFP package AK2342B BLOCK DIAGRAM http://www.asahi-kasei.co.jp/akm/en/product/ak2342b/ak2342b.html [2/1/2002 9:05:46 AM]