MC1490

WIDEBAND AMPLIFIER WITH AGC

Motorola

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

MC1490 Datasheet (364.33 KB)

MC1490 Datasheet Preview — Preview of MC1490 PDF

Datasheet Details

Part number:

MC1490

Manufacturer:

Motorola

File Size:

364.33 KB

Description:

Wideband amplifier with agc.
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 am.

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MC1490 WIDEBAND AMPLIFIER WITH AGC Motorola

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MC1490 Features

MC1490 General Description

Datasheet Details

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