NTE1458
Integrated Circuit
Dual Audio Preamp
Absolute Maximum Ratings:
Supply Voltage, V
CC
18V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Current, I
CC
15mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (T
A
= +75
C), P
D
270mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opt
30
to +75
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
40 to +125
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Operating Condition:
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
V
CC
6.0
13.2
17.0
V
Electrical Characteristics: (T
A
= +25
C, V
CC
= 13.2V, f = 1kHz, R
L
= 10k
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max
Unit
Quiescent Current
I
CC
i
= 0
2.5
3.3
5.5
mA
Open Loop Voltage Gain
A
o
o
= 0.3V
78
88
dB
Voltage Gain
A
o
= 0.3V, NAB = 45dB
45
dB
Maximum Output Voltage
V
OM
THD = 1%, NAB = 45dB
1.0
1.6
V
rms
Total Harmonic Distortion
THD
o
= 0.3V, NAB = 45dB
0.13
0.3
%
Input Impedance
Z
in
50
100
k
Equivalent Input Noise Voltage
nin
R
G
= 2.2k
, NAB = 45dB,
BPF (15Hz to 30kHz)
1.2
2.0
V
rms
Crosstalk
o
= 1V, NAB = 45dB, R
G
= 2.2k
65
dB
Channel Balance
o
= 0.3V
0.5
0
+0.5
dB
PDF 
ZIP