NJU72010 查看數據表（PDF） - Japan Radio Corporation

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NJU72010

2Vrms Ground Referenced Stereo Line Amplifier with LPF

Japan Radio Corporation  

NJU72010

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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