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AK2347A

Two-way Radio Audio & Sub-Audio Processor

Description AK2347Aincludesaudiofilter,limiter,splatterfilter,compandor,scrambler,whichishighlyintegratedtwo-wayradiobasebandfunctionsforFRSandLMR. Audiohigh-passfiltershowsahighattenuationinmagnituderesponsecharacteristicsunder250Hzthatsupportstoeliminate

AK2347A

Two-way Radio Audio & Sub-Audio Processor; ? Audio processing\n? ? TX and RX amplifier\n? ? Pre/De-emphasis circuit\n? ? Compressor and Expander with no external components\n? ? Scrambler and De-scrambler in frequency inversion type (3.388kHz or 3.290kHz)\n? ? Limiter with level adjuster\n? ? Splatter filter for wide and narrow band\n? ? Digital controlled amplifier for microphone, modulator and demodulator sensitivity\n? Sub-Audio filter with level adjuster for CTCSS and DCS\n? Low power supply operation: 2.7 to 3,3V\n? Wide range operating for temperature: -40 to 85 °C\n? Oscillator circuit for 3.6864MHz and 3.579545MHz crystal\n? Serial control interface operation\n? Compact plastic packaging, 24-pin QFNJ (4.0x4.0x0.75mm 0.5mm pitch);

Description\nAK2347A includes audio filter, limiter, splatter filter, compandor, scrambler, which is highly integrated two-way radio baseband functions for FRS and LMR.\nAudio high-pass filter shows a high attenuation in magnitude response characteristics under 250Hz that supports to eliminate a subaudio tone clearly.

AK2347B

Two-wayRadioAudio&Sub-AudioProcessor

Description AK2347Bincludesaudiofilter,limiter,splatterfilter,compandor,scrambler,whichishighlyintegratedtwo-wayradiobasebandfunctionsforFRSandLMR. Audiohigh-passfiltershowsahighattenuationinmagnituderesponsecharacteristicsunder250Hzthatsupportstoeliminate

AM2347P

P-Channel40-V(D-S)MOSFET

H2347

NPNSILICONTRANSISTOR

APPLICATIONS TVUHFOscillatorApplications. TVVHFMixerApplications.