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ASAHI KASEI
[AK2358AI
i Features 1
•1 Built-in voice filter for cordless telephone, MSK MODEM (2400bps), COMPANDOR, and scrambler circuit
•1 Low / wide operation voltage range (1.9 V to 5. 5V) •1 Built-in COMPANDOR output transient response circuit and time constant circuit •1 No external component is needed for COMPANDOR •1 Built-in buffer amplifier for ceramic receiver driving.
•1 Built-in electronic volume for u icrophone sensitivity and modulator/demodulator
sensitivity
u Receiving level switchable in 8 steps (-12 to +9dB)
•1 Built-in muting function for voice transmitting and receiving •1 External adjustment for the limiter level-
u Built-in amplifier for transmission and reception gain adjustment
•1 Low power CMOS and power-down function
u Built-in 3.