1466

NTE1466
Integrated Circuit
Preamp w/ALC Transistors
Features:
D Pre−Amplifier (Recording or Playback) with ALC Transistors for Tape Recorder
D Low Noise: VNI = 1.3μVrms (Typ)
D Wide ALC Range
D Operates from a Wide Range of Power Supplies: VCCopr = 3V to 15V
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mW/°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −25° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C
Electrical Characteristics: (VCC = 5V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Current
ICC
VIN = 0, ALC off
−
1.3
1.75
mA
Voltage Gain (Open Loop)
GVO
VIN = −80dBm f = 1kHz
67
69
−
dB
GV
VOUT = 0.7Vrms f = 1kHz, Note 1
33
35
37
dB
Maximum Output Voltage
VOM
f = 1kHz (below), THD = 1% Max
0.7
0.9
−
Vrms
Equivalent Input Noise Voltage
VNI
Rg = 2.2kΩ, NAB (Compensated), 1kHz Gain
Converted with GV (1kHz)
−
1.3
2.5
μVrms
Input Resistance
RIN
f = 1kHz
−
150
−
kΩ
−
60
100
mV
Voltage Gain (Closed Loop)
Saturation Voltage, Q5
V6(ON)
Note 1. In regard to the voltage gain (closed loop voltage) value, it is possible to be classified.
Pin Connection Diagram
(Front View)
9 VCC
8 Output
7 Filter
6 ALC Output
5 GND
4 ALC Bias
3 Feedback
2 Input
1 Compensation
.126 (3.2)
.323
(8.2)
Max
.100
(2.54)
.906 (23.0) Max
1
9
.020 (0.50)
.800 (20.3)
.099
(2.5)
Min
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