NTE1237
NTE1237 is Integrated Circuit AM Radio manufactured by NTE Electronics.
Features
: D Small External Part Count D Tuning Meter Circuit D Wide AGC Range Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC
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- - . . . . 18V Power Dissipation, PT
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- . . . . 500m W Operating Temperature Range, Topr
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- 20° to +70°C Storage Temperature Range, Tstg
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- 55° to +125°C Electrical Characteristics: (VCC = 12V, f = 1MHz unless otherwise specified)
Parameter Maximum Sensitivity Signal- to- Noise Ratio Symbol MS S/N Test Conditions f M = 400Hz, MOD = 30%, Output=50m V f M = 400Hz, Input = 40d B/m MOD = 30% Input = 74d B/m f M = 400Hz MOD = 30%, Input = 74d B/m MOD = 80%, Input = 74d B/m MOD = 30%, Input =120d B/m Detector Voltage Tuning Meter Circuit Quiescent Current VO(DET) f M = 400Hz, MOD = 30%, Input = 74d B/m TM IQ Input = 74d B/m Min Typ Max Unit 37.5 40.0 42.5 8 42
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- 12 45 1.0 1.5 2.5
- - 2.0 3.0 10 d B d B d B % % %
Total Harmonic Distortion
140 170 230 m W 50
- - 13 100 21 % m A
Pin Connection Diagram
Input 1 VCC RF/OSC 2 VCC RF 3 Converter Output 4 OSC Tank 5 Converter Input 6 IF Input 7
14 Tuning Meter 13 AGC Amp Input 12 Detector Input 11 Audio Output 10 VCC IF/Audio 9 GND 8 IF Output
.827 (21.0)...
