MC1490 Datasheet - Motorola

MC1490 WIDEBAND AMPLIFIER WITH AGC

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 so that varying amounts of signal exceed the level Vr. Diode D1 rectifies the positive peaks.

Order this document by MC1490/D MC1490 RF/IF/Audio Amplifier The MC1490 is an integrated circuit featuring wide range AGC for use in RF/IF amplifiers and audio amplifiers over the temperature range, 40° to +85°C. High Power Gain: 50 dB Typ at 10 MHz 45 dB Typ at 60 MHz 35 dB Typ at 100 MHz Wide Range AGC: 60 dB Min, DC to 60 MHz WIDEBAND AMPLIFIER WITH AGC SEMICONDUCTOR TECHNICAL DATA 6.0 V to 15 V Operation, Single Polarity Supply See.

MC1490 Features

* re 24. Speech Compressor +12 V 25 µF 0.001 1.0 k 1.0 k 2 5 15 µF Input 4 6 15 µF R3 15 k 7 1 MC1490P 3 +12 V +12 V 8 10 µF 10 µF Output +12 V R2 Q2 2N3904 4.7 k 150 k Cx Rx 220 Q1 2N3906 D1 6.8 k 2.2 k Vr 33 k R1 100 k MOTOROLA ANALOG IC DEVICE DATA 7 MC1490 OUTLINE DIMENSIONS P SUFFIX PLASTI

MC1490 Datasheet (364.33 KB)