Circuit arrangement for electronic gain/control, in particular electronic volume control circuit
The invention describes an electronic volume control circuit which can be manufactured in integrated circuit form, can be operated at a low battery voltage, has satisfactory input signal compatibility and comparatively low noise. A transistor differential amplifier is provided the emitter lead of wh...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention describes an electronic volume control circuit which can be manufactured in integrated circuit form, can be operated at a low battery voltage, has satisfactory input signal compatibility and comparatively low noise. A transistor differential amplifier is provided the emitter lead of which includes a transistor which passes the direct current and the signal current. A negative-feedback path is provided from that collector terminal of the differential amplifier which is not used as a signal output to the input of the transistor included in the emitter lead. |
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