Compact Scaler Switcher
Altimium 7 www.altimium.com
3.4 Connection of Microphone
SCA51D provides one 3-level microphone input to accommodate different microphone
input modes, including 48V phantom power mode, MIC mode & LINE mode.
48V phantom power input
When switch to “48V” (It has a good frequency characteristic, high input impedance and
high sensitivity in this mode), the MIC input will offer a 48V phantom power. This is only
used for
condenser microphone
.
Connect the microphone this way:
“+” connects to positive, “-” connects to negative and
“
” to ground.
MIC input
When
switch to “MIC” (It has a low frequency characteristics, and wide frequency
response in this mode), the microphone input is used for connecting with d
ynamic
microphone
. There are two different connections:
1)
Unbalanced connection:
“+” and “
” connect to ground, and “-” connects to signal.
“-” and “
” connect to ground, and “+” connects to signal.
2)
Balanced connection:
“+” connects to positive, “-” connects to negative and “
” connects to ground.