REJ03F0057_M61520FP Datasheet, PDF (10/16 Pages) List of Unclassifed Manufacturers – 6ch Electronic Volume with Tone Control

M61520FP
Functional description
(1) Input selector, input attenuator
The IC incorporates a selector for either of two six-input channels and a mute switch. An input level for the selected
input is chosen from among -4.4, -8, -9.4, -11.6, -13, and -16.6 dB.
60k
1
60k
2
60k
3
60k
4
60k
5
60k
6
-4.4/-9.4/
-8/-13/
-11.6/-16.6dB
Balanced output for the ADC
+
ATT
+
(positive phase)
-
-
-
+
Balanced output for the ADC
(inverse phase)
(2) REC block
The REC signal is mixed with the MIC signal and then output. The gain of the signal for mixing with the MIC
signal is selected from among +1 dB, +3, +4.6, +6.6 dB. The REC OUT2 side includes a mute switch.
From MIC
0dB
REC OUT1
REC input
60k
+
-
-
+
+1/+3/+4.6/+6.6dB
MUTE
SW
REC OUT2
Rev.1.0, Sep.19.2003, page 10 of 15