NJM2781
– 2 –
■ ABSOLUTE MAXIMUM RATING (Ta=25°
°°
°C)
PARAMETER SYMBOL RATING UNIT
Supply Voltage V
+
5 V
Power Dissipation P
D
MSOP8(TVSP8):320, SSOP8:250 mW
Operating Temperature Range Topr -40 to 85
°C
Storage Temperature Range Tstg -40 to 125
°C
■ ELECTRICAL CHARACTERISTICS
(Ta=25°C,V
+
=2.8V,Vin=-40dBV, f=1kHz,R
L
=9kΩ)
● Power Supply
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Operating Voltage
V
+
2.7 2.8
4.5
V
Operating Current 1 Icc1 No signal, Standby - 1 µA
Operating Current 2 Icc2 No signal, Active 1.8 4 mA
Mic Power Supply Voltage Vo RL=6.8kΩ 2.3 2.42 2.54 V
● Amplifier
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Output Voltage Vo 1.28 1.35 1.42 V
Voltage Gain G
V
Test Circuit 1 24 25 26 dB
Maximum Output Voltage V
OM
THD=0.1%
-2.7
(0.73)
-1.5
(0.84)
-
dBV
(Vrms)
Total Harmonic Distortion
(THD+N)
THD - 0.025 0.1 %
Output Noise V
NO
Rg=600Ω, A-Weighted -
-98
(12.6)
-90
(31.6)
dBV
(µVrms)
Power Supply Ripple
Rejection
PSRR
Rg=600Ω,
Vripple=-20dBV
65 80 - dB
● Control
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
High Level Input Voltage V
IH
STBY terminal 2 - V
+
V
Low Level Input Voltage V
IL
STBY terminal 0 - 0.5 V
■
Standby Mode Operation
Control Terminal
Status
STBY
IC Condition
Active H IC active
Standby L, OPEN IC standby
