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NTE1634 Datasheet PDF : 2 Pages
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NTE1634
Integrated Circuit
Dual Preamp w/ALC
Description:
The NTE1634 is a monolithic integrated circuit in a 14–Lead DIP type package consisting of a dual
equalizer amplifier with automatic level control (ALC) and is suitable for stereo radio cassette applications.
Features:
D Dual Equalizer Amplifier with Built–In ALC Circuit.
D Recording Amp Available Because of High Gain Characteristic (Variable Monitor Possible).
D Good Channel Separation (Sep = 50dB Typ)
D Capable of Direct Meter Driving and ALS Transistor.
D Good ALC Response Balance Between Channels.
D Wider Operating Supply Voltage Range (4V to 13V)
Absolute Maximum Ratings: (TA = +25°C unles otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
ALC TR Maximum Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5mA
Electrical Characteristic: (TA = +25°C, VCC = 5V, RL = 10kΩ: Playback, RL = 680Ω: Recording
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Circuit Current
Voltage Gain (Open Loop)
Voltage Gain (Closed Loop)
Output Voltage
Total Harmonic Distortion
Input Resistance
Equivalent Input Noise Voltage
Cross Talk
ALC Range
ALC Balance
ALC Distortion
ICC Vi = 0
–
4.5 10 mA
AVO
–
85
–
dB
AV1 Play
–
40
–
dB
AV2 Record
–
58
–
dB
VO THD = 1%, Play
0.9 1.2
–
V
THD VO = 0.5V, Play
–
0.1 1.0
%
Ri
21 30
–
kΩ
VNI BW(–3dB)=20Hz to 20kHz –
1.0 2.0 µV
CT Rg = 2.2KΩ
40 50
–
dB
Vi = –60dBm, Record
35 45
–
dB
Vi = –20dBm, Record
–
0 2.0 dB
Vi = –20dBm, Record
–
0.5 2.0
%
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