NTE1468
Integrated Circuit
Audio, Low Power Output Amplifier
Applications:
D Line Output Amplifier
D Recording Head Driver and Headphone Driver of Tape Recorder Deck.
Features:
D Low Noise: VNI = 1µVrms
D Wide Operating Supply Voltage Range: VCC = 3.5 to 25V
D 150mW Audio Output Power at VCC = 20V, RL = 150Ω
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mW
Derated Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4mW/°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Electrical Characteristics: (VCC = 20V, TA = +25°C, RL = 150Ω, Rf = 600Ω, f = 1kHz unless
otherwise specified)
Parameter
Operating Supply Voltage Range
Supply Current
Symbol
VCCopr
ICC
Test Conditions
Min Typ Max Unit
3.5 20
25
V
mA
mA
dB
dB
%
f = 1kHz, VOUT = 0
–
–
–
4.0 6.0
f = 1kHz, VOUT = 4.5Vrms
Rf = 0Ω
16.5
63
–
–
Voltage Gain (Open Loop)
Voltage Gain (Closed Loop)
Total Harmonic Distortion
GVO
GV
Note 1
36.5 40.0 43.5
THD VOUT = 4.5Vrms
VCC = 6.5V, VOUT = 1.0Vrms
THD = 10%
–
–
–
–
–
0.5 1.0
1.0
6
–
–
–
%
Maximum Output Voltage
Input Resistance
VOM
RIN
Vrms
kΩ
30
Output Noise Voltage
VNO
BW = 20Hz to 20kHz, Rg = 1kΩ
100 200 µVrms
Note 1. In regard to the value of voltage gain (closed loop), it is possible to be classified.