Features: 4 Digitally Controlled Amplifiers15 Gain/Attenuation Steps3 Amplifiers, with a ± 3dB Range in 0.43dB Steps1 'Volume' Amplifier, with a ± 14dB Range in 2dB Steps8-Bit Serial Data ControlOutput Mute FunctionAudio and Data Gain Control ApplicationsTelecoms, Radio and Industrial Applications...
FX019: Features: 4 Digitally Controlled Amplifiers15 Gain/Attenuation Steps3 Amplifiers, with a ± 3dB Range in 0.43dB Steps1 'Volume' Amplifier, with a ± 14dB Range in 2dB Steps8-Bit Serial Data ControlOut...
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The FX019 Digitally Adjustable Amplifier Array is available to replace trimmer potentiometers and volume controls in Cellular, PMR, Telephony and Communications applications where d.c., voice or data signals need adjustment.
The FX019 is a single-chip LSI consisting of four digitally controlled amplifier stages, each with 15 distinct gain/attenuation steps. Control of each individual amplifier is by an 8-bit serial data stream. Three of the amplifier stages offer a +/-3dB range in steps of 0.43dB, whilst the remaining amplifier offers a +/-14dB range in steps of 2dB, and is suggested for volume control applications. Each amplifier includes a 16th 'Off' state which when applied, mutes the output audio from that channel. This array uses a Chip Select input to select one of two FX019s in a system.
FX019 replaces the need for manual trimming of audible signals by using the host microprocessor to digitally control the set-up of all audio levels during development, production/calibration and operation.