1-
BIT
TIME
_I
r---
2mSEC
~
LINE
A Z4 PIN 5
4.0
V
2.0 V
OV
~
FILTERED
AUDIO
BASE
LINE
NOTE:
AMPLITUDE
WILL
VARY
DEPENDING ON RECORDER
VOLUME
LEVEL.
B CR4 CATHODE
C Z4 PIN
9
D CR7
CATHODE
2.0 V
OV
2.4 V
OV
1.GV
OV
FULL·WAVE
RECTIFIED
AUDIO
INVERTED
I
AMPLIFIED
AUDIO
FILTERED
AUDIO
E
Z4
PIN 10
4.4V
1.1
OV
W
w
w
w
FIGURE
11.
Audio
Processing (Idealized)
49
