The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
Supersedes January 1997 edition, DS4289 - 2.5
ACE9040 provides all the speech signal processing and data/SAT tone filtering needed for AMPS or TACS analog cellular telephones.
Transmit voice channel functions comprise a microphone amplifier, soft limiter, bandpass filter, compressor, hard limiter, lowpass filter and a gain controlled amplifier to set deviation level. Additional transmit circuits include a DTMF generator, data and SAT filters, deviation setting amplifiers for data/ST and SAT and a modulation combiner.
ACE9040’s receive path comprises a bandpass filter, expander, volume control and power amplifiers to directly drive an earpiece or handsfree transducer.
Gain settings, mute switches and filter characteristics are programmed via a three wire serial interface.
ACE9040 Datasheet
