Voice Band Inverter
3
MX014
1. Block Diagram
BALMOD
DEEMP Out
RX Buffer In
TX Buffer In
BPF Out
Filter
TX Audio Feedback
TX Audio In
6dB/Octave
Pre-emphasis
10dB Gain
Rx Path
Path Invert
TX
6dB/Octave
De-emphasis
TX Audio Out
TX
BIAS
RX Audio In
Bandpass
Filter
300-3033 Hz
Bandpass
Filter
300-3033 Hz
Filsav 1
BIAS
RX Path
Filsav 1
RX Path
Carrier
RX Audio Out
Filsav 2
RX Audio Feedback
3333 Hz
PTT
PTT
RX Audio Enable
RX Audio Enable
PTL
PTL
Privacy Enable
Clock
Carrier
Filsav 1
Filsav 2
CLK
3333 Hz
CLK Generator
Clock
LOGIC
RX Path
EMPSAV
TX
Path Invert
V
DD
V
SS
BIAS
Figure 1: Device Block Diagram
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1997 MX•COM, INC.
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