NTE1490 データシートの表示（PDF） - NTE Electronics
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NTE1490 Datasheet PDF : 2 Pages
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NTE1490
Integrated Circuit
FM/AM Radio Receiver System
16−Lead DIP
Features:
D Stability is improved by use of the full balance DC feedback type differential IF amplifier
D High sensitivity (Input limiting sensitivity is 32dBμ)
D Large detection output (450mVrms typ, 100% mod.)
D Utilizing the external resistance it can be changed freely
D High S/N (77dBμ)
D Wide operation supply voltage
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V
Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36.4mA
Power Dissipation, PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450mW
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
FM Characteristics
Quiescent Current
Recovered AF Voltage
Total Harmonic Distortion
lo
eo1
THD
106dBμ, RL = 20k
50μs, de−emphasis
− 24.7 36.4 mA
285 450
−
0.3
600 mVrms
1.0
%
Limiting Sensitivity
Signal to Noise Ratio
AM Rejection Ratio
Signal Meter Output
AM Characteristics
Vin(lim) −3dB point
−
32 37.5 dBμ
S/N
106dBμ compared with eO1
67
77
−
dB
AMR 106dBμ AM out as compared with eO1 35
50
−
dB
VM
106dBμ
1.34 1.60 1.86 VDC
Recovered AF Voltage
Total Harmonic Distortion
eO2
THD
74dBμ
80
110
160 mVrms
−
0.3 2.0
%
Usualy Sensitivity
Signal to Noise Ratio
SIF
S/N2
eo2 = 10mVrms
74dBμ compared with eO2
−
31
37
dBμ
−
55
−
dB
FM: fc = 10.7MHz, fm = 400Hz, ΔF = 75kHz Div
AM: fc = 455kHz, fm = 400Hz, 30% MOD
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