AK2347A Overview
AK2347A includes audio filter, limiter, splatter filter, pandor, scrambler, 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 external ponents.
AK2347A Key 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 (3.388kHz or 3.290kHz)
- Limiter with level adjuster
- Splatter filter for wide and narrow band
- Digital controlled amplifier for microphone, modulator and demodulator sensitivity
- Sub-Audio filter with level adjuster for CTCSS and DCS
- Low power supply operation: 2.7 to 3,3V
