FX346

The FX346 Audio Processing Array is a full-duplex Speech,SAT and Data Processor designed to meet the composite specifications of AMPS,TACS and NMT 450/900. Here are the component value notes.Figure 2 shows the recommended components for use with the FX346.The notes below give component values and/or calculations.Gain component combinations to set the gains of the Tx Audio,SAT and WB Data,Rx Audio and Limiter inputs.Taking into account the effect of the parallel feedback capacitor.It is recommended that all gain resistor values are kept above 10k.Feedback capacitor values should be calculated to give a -3dB point at approximately 15kHz for Rx and Tx Channel,this for anti-alias filtering.To maintain low current consumption,output Buffers,anti-alias Clock Frequency Filters and input internal pullup or pulldown resistors are not included on-chip.A noisy or badly regulated power supply can cause instability and/or variance of selected gains.

Features of the FX346 Audio Processing Array are:(1)AMPS TACS,NMT Audio +Data Processing; (2)Speech ,SAT and Data-FULL Duplex Filtering; (3)Speech Bandpass and Ddviation Limiter Filters; (4)SAT4/6kHz Bandpass Filters; (5)8/10kbit Rx Wideband Data Filter and Limiter; (6)Filters for Speech/FFSK,Pre/De-emphasis.The last one is input Gain Adjustment.At present there is not too much information about this model.If you are willing to find more about the CML Semiconductor Products of FX346 AMPS,TACS,NMT Audio Processing Array.

The absolute maximum ratings of the FX346 Audio Processing Array can be summarized as:(1)supply voltage 1:-0.3 to7.0V; (2)input voltage at any pin(ref VSS=0V):-0.3 to VDD+0.3V; (3)skin/source current(supply pins):+/-30mA;(other pins):+/-20mA;(4)total device dissipation@ TAMB 25:800mW Max; (5)derating:10mW/;(6)operating temperature range:FX346J:-30 ~ 85;FX346LG/LS:-30~70;(7)storage temperature range:FX346J:-55~125;FX346LG/LS:-40~85.If you want to know more information such as the electrical characteristics ,please download the datasheet in www.seekdatasheet.com .