NTE1210
Integrated Circuit
Preamp
w
/ALC
Description:
The NTE1210 is a low–noise, high–gain preamplifier with a built–in ALC (automatic level control) cir-
cuit in a 9–Lead SIP type package designed for use as a record/playback preamp in cassette tape
recorders.
Features:
D Wide ALC Range
D Wide Range of Working Power Supply Voltage: 3V to 12V
D High Gain, Low Distortion, and Low Noise
Absoulte Maximum Ratings:
(T
A
= +25°C unless otherwise specified)
Power Supply Voltage, V
CC
15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation, P
D
55mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above 25°C 5.5mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
–25° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
–55° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics:
(T
A
= +25°C, V
CC
= 5V unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Quiescent Current I
CC
S
1
= 2, S
2
= 1, S
3
= 1 0.5 1.1 2.2 mA
Voltage Gain (Open Loop) G
VO
f = 1kHz, S
1
= 2, S
2
= 2, S
3
= 1 – 70 – dB
Output Noise Voltage V
NO
BW = 30Hz to 20kHz, S
1
= 2, S
2
= 2, S
3
= 1 – 70 100 µV
rms
Total Harmonic Distortion THD f = 1kHz, S
1
= 1, S
2
= 2, S
3
= 1 – 0.12 0.3 %
Maximum Output Voltage V
OM
f = 1kHz, S
1
= 1, S
2
= 2, S
3
= 1 0.7 1.0 – V
rms
ALC Voltage V
C
S
1
= 1, S
2
= 2, S
3
= 2 – 0.2 1.0 V
