NJU72011
1.2 Control of V+ terminal and Mute terminal
1.2.2 Power-on procedure
1. Turn on the V+.
2. After 100msec from power on, change the control voltage of MUTE terminal (Vcnt) from "Low" to
"High".
* It is necessary to stabilize an IC for 100msec.
By releasing the MUTE function, the output terminal output the signal.
1.2.3 Power-off procedure
1. Change the control voltage of MUTE terminal (Vcnt) from "High" to "Low".
By the MUTE function, the output signals are stopped from output terminal.
2. Turn off the V+ after “2RC” sec from MUTE.
* It is necessary to stabilize a MUTE condition for “2RC” sec.
Ex.) R2=22kΩ, C7=4.7uF -> 2R2 x C7=200msec
V+
(3pin
t
100msec
200msec
Vcnt
MUTE
MUTE
MUTE
t
MUT
(7pin)
t
Fig.5 Power-on / Power-off timing chart
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