NTE1179
Integrated Circuit
Pre−Amplifier with ALC Transistors
Features:
D Low Noise, Low Distortion
D Includes ALC Transistor
Absolute Maximum Ratings
: (T
A
= +25°C, V
CC
= 5.5V unless otherwise specified)
Maximum Supply Voltage, V
CCMAX
9.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Current Dissipation, I
CCMAX
10mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Current of Transistor, I
CCMAX
5mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Dissipation, P
DMAX
200mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
−20 to +60°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
−40 to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics
: (T
A
= +25°C, V
CC
= 5.5V, f = 1kHz, R
L
= 10kΩ, unless otherwise specified)
Parameter
Symbol Test Conditions Min Typ Max Unit
Quiescent Current I
CCO
− 1.1 − mA
Voltage Gain V
G
Open Loop 56 58 − dB
Closed Loop 42 45 48 dB
Output Voltage V
O
THD = 5% 0.7 1.2 − V
Total Harmonic Distortion THD V
O
= 200mV − − 1.0 %
Input Resistance R
i
20 − − kΩ
Noise Output Voltage V
NO
Input: Recording Head, V
G
= 75dB − − 10 mV
ALC Rejection − − 9 dB
