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NJU7181RB1-TE1

P1-P3P4-P6P7-P9P10-P12P13-P13
NJU7181
– 1
–
Version 5.4E
SIGNAL LEVEL SENSOR SYSTEM
GENERAL DESCRIPTION
The NJU7181 is a signal level sensor system IC. It sends
a High flag to the microprocessor or other equipments
whenever it detects the existence of the audio signal.
The NJU7181 includes a delay circuit which allows the
IC continue to hold the flag after the absence of the audio
signal. This holding time can be adjusted with external
capacitor.
Together with its adjustable Input Sensitivity (by external
resistor) & its characteristic of low current consumption and
low operating voltage, NJU7181 is suitable for Eco-Design of
Energy-using Products and for battery operated applications.
FEATURES
• Operating Voltage 0.9 to 5.5V
• Low Operating Current 55µA typ.
• Delay circuit for long Recovery time
• Adjustable Recovery time by external capacitor
• Adjustable Input Sensitivity by external resistance
• C-MOS Technology
• Package Outline MSOP8 (TVSP8)*
ESON8
*MEET JEDEC MO-187-DA / THIN TYPE
APPLICATIONS
• Power Saving for battery operated devices
• Muting Application
• Memory saving for recording devices
• Half- duplex transmission application
BLOCK DIAGRAM
PACKAGE OUTLINE
Level
Detec tor
Delay
Latch
CLR
D
L
IN
OUT
V
+
V
+
ON
OFF
Ex ter na l Tr ig g e r
NJU7181RB1
MSOP8 (TVSP8)
NJU7181KU1
NJU7181
– 2 –
PIN CONFIGURATION
MSOP8 (TVSP8) ESON8
Surface Backside
No. Symbol Function
1 IN AC Input
2 AMP_OUT Amplifier Output
3 TRIN External Trigger Input
4 GND Ground
5 CAP_D Delay Time Capacitor
6 RES_D Delay Time Resister
7 OUT DC Output
8 V
+
Supply Voltage
1432
8567
85
67
1432
1
8
5
4
NJU7181
– 3
–
ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER SYMBOL RATING UNIT
Supply Voltage V
+
+7 V
Power Dissipation P
D
MSOP8 (TVSP8): 470 (Note1)
ESON8: 450
mW
Maximum Input Voltage V
IMAX
0 ~ V
+
(Note2) V
Operating Temperature Range Topr -40 ~ +85
°C
Storage Temperature Range Tstg -40 ~ +125
°C
(Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
(Note2) Don’t put Input Voltage more than Power Supply Voltage.
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V
+
=3V, R
1
=10kΩ, R
2
=100kΩ, R
d
=220k, C
d
=10nF)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Operating Voltage V
+
0.9 - 5.5 V
Operating Current I
DD
No signal, R
L
= - 55 100 µA
Input Sensitivity V
INS
f=1kHz -45 -41.5 -38 dBV
Delay Time 1 T
delay1
1.0 1.5 2.0 Sec
Delay Time 2 T
delay2
V
+
=0.9V 1.0 1.5 2.0 Sec
Delay Time 3 T
delay3
C
d
=10µF - 1,500 - Sec
DC CHARACTERISTICS
DC Output Terminal (7pin)
(Ta=25°C)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
High Level Output Voltage
V
OH
I
SOURCE
=1mA V
+
-0.2 - V
+
V
Low Level Output Voltage
V
OL
I
SINK
=1mA 0 - 0.2 V
External Trigger Switch Terminal (3pin)
(Ta=25°C)
High Level Input Voltage
V
IH
V
+
-0.2 - V
+
V
Low Level Input Voltage
V
IL
0 - 0.2 V
P1-P3P4-P6P7-P9P10-P12P13-P13

NJU7181RB1-TE1

Mfr. #:
Buy NJU7181RB1-TE1
Manufacturer:
NJR (New Japan Radio)
Description:
Audio Transmitters, Receivers, Transceivers Signal Sensor System 55uA 0.9 to 5.5V
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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