Specifications

296 Chapter 10
Block Diagrams Audio Analyzer Section
Figure 10-8 Audio Analyzer 2, A2A40
I.O.
CK
D
EN/I
+12.4
+5.1
-12.4
GND
B
B
A
+PEAK
-PEAK
RMS
DET
RMS
DET
FROM
AUDIO
ALC
ALC/
THRU
DE-EMP
TO SCOPE
TO SIGNAL
ANAL
TIME
CONST
POST NOTCH
RMS
VARIABLE
FREQ. NOTCH
TIME
CONST
RESET
GROUP SERIAL I/O
BEEP
VOLUME OFF
SERIAL I/O
AUDIO MEASUREMENT SELECT
ANALYZED AUDIO OUT SELECT
0/10/20/30/40 dB
212 Hz
100 kHz
POS PEAK
VOLTAGE OUT
VOLTAGE OUT
NEG PEAK
PK DET SEL
EXP SEL
PEAK
0/20 dB/40 dB
PK DET RESET
TIME CONST 0.1
+
-
+
-
VOLUME
FRONT PANEL
KEYBOARD
MONITOR
OUT
3 PIN
KEYBOARD
SPKR
HI/LOW BEEP
BEEP FROM
CONTROLLER
W100
DC MEAS.
PRE-NOTCH RMS
AUDIO
MEAS
TO
VOLTMETER
SETTLE
PEAK DET. SELECT
0/10/20/30
TO MEAS
HEADPHONE CONNECTOR
3 PIN
BEEP/
AUDIO
Ohms8
ANALYZER 1
SCOPE