Academy Audio Hi-End MUSES VCM Gebruikershandleiding - Pagina 8
Blader online of download pdf Gebruikershandleiding voor {categorie_naam} Academy Audio Hi-End MUSES VCM. Academy Audio Hi-End MUSES VCM 12 pagina's. Mini electronic volume controls
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VCM Board 1
with JFET
Opamp
Installed
J1
CON16
J3
+15V
J4
GND
J5
+15V
C2 47uFx35V NP
J7
IN_L
HOT
C4 47uFx35V NP
J9
IN_L
COLD
J10
COM_L
C6 47uFx35V NP
J13
IN_R
HOT
C8 47uFx35V NP
J15
IN_R
COLD
J16
COM_R
Figure 5. VCM with JFET Opamp. Balanced Volume Control Application.
The VCM board may be used as a classic potentiometer Volume control. In this case the U2 footprint
should not be populated. Figure 6 depicts a single ended Volume control solution shown with an
optional Muting relay control circuit R6R7Q1, and optional DC blocking networks C2R3 and C4R5. The
outputs are taken from Pin 6 L+ and Pin 14 R+ of the 16 pin application connector.
VCM Board 2
with JFET
Opamp
Installed
J2
CON16
R8
47
R9
47
Page 8 of 11
J1
J2
C1
0.1uF
OPTIONAL
(SEE TEXT)
C1
47uFx35V NP
RL1
C3
47uFx35V NP
R3
R4
100K
100K
C5
47uFx35V NP
RL2
C7
47uFx35V NP
R5
R6
100K
100K
R6
MUTE
6.8K
R7
22K
+5V
R1
10
ZENER 5.6V 500mW
D1
J6
OUT_L
HOT
J8
OUT_L
COLD
J11
COM_L
J12
OUT_R
HOT
J14
OUT_R
COLD
J17
COM_R
Q1
2N2222A