AK2346B
Features
- Audio processing
- TX and RX amplifier
- Pre/De-emphasis circuit
- pressor and Expander with no external ponents
- Scrambler and De-scrambler in frequency inversion type
- Limiter with level adjuster
- Splatter filter for wide and narrow band
- Digital controlled amplifier for microphone, modulator and demodulator sensitivity
- 1200/2400bps MSK MODEM with frame detection
- Wide range operation voltage: 1.9V to 5.5V, temperature: -30 to 75 °C
- Oscillator circuit for 3.6864MHz crystal
- Serial control interface operation
- pact plastic packaging, 24-pin SSOP
2. Description
AK2346B includes audio filter, limiter, splatter filter, PANDOR, scrambler, MSK MODEM, which is highly integrated two-way radio baseband functions for FRS and LMR. Audio high-pass filter shows a high attenuation in magnitude response characteristics under 250Hz that supports to eliminate a subaudio tone clearly. TX limiter for deviation control has a limiting level adjuster by applying a DC voltage via...
