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AK2347B

AKM
Part Number AK2347B
Manufacturer AKM
Description Two-way Radio Audio & Sub-Audio Processor
Published May 11, 2014
Detailed Description ASAHI KASEI [AK2347B] AK2347B Two-way Radio Audio & Sub-Audio Processor 1. Features • Audio processing • TX and RX amp...
Datasheet PDF File AK2347B PDF File

AK2347B
AK2347B

Overview
ASAHI KASEI [AK2347B] AK2347B Two-way Radio Audio & Sub-Audio Processor 1.
Features • Audio processing • TX and RX amplifier • Pre/De-emphasis circuit • Compressor and Expander with no external components • 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 • Wide range operating for temperature: -40 to 85 °C • Oscillator circuit for 3.
6864MHz and 3.
579545MHz crystal • Serial control interface operation • Compact plastic packaging, 24-pin SSOP 2.
Description AK2347B includes audio filter, limiter, splatter filter, compandor, 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 25...


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