MC1490 |
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| Part Number | MC1490 |
| Manufacturer | Motorola |
| Description | OF SPEECH COMPRESSOR The amplifier drives the base of a PNP transistor operating common–emitter with a voltage gain of approximately 20. The control R1 varies the quiescent Q point of this transistor ... |
| Features |
ound 6 5 Noninverting Input AGC Input
Representative Schematic Diagram
2 1.5 k VAGC 5 470 2.0 k 470 70 5.5 k 12.1 k 8 (+) Outputs ( –) 1 45 66 6 5.0 k 5.0 k 5.6 k 1.1 k 1.1 k 8.4 k Substrate 1.9k 200 3 7 1.4 k 2.8 k 200 200 2.8 k VCC GND Inverting Input SCATTERING PARAMETERS (VCC = +12 Vdc, TA = +25°C, Zo = 50 Ω) f = MHz Typ Parameter Input Reflection Coefficient Output Reflection Coefficient Forward Transmission Coefficient Reverse Transmission Coefficient © Motorola, Inc. 1996 Symbol |S11| θ11 |S22| θ22 |S21| θ21 S12 θ12 30 0.95 –7.3 0.99 –3.0 16.8 128 0.00048 84.9 60 0.93 –16 0.98 –5.5 14... |
| Datasheet |
 MC1490 Data Sheet
PDF 364.33KB |
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