MX019 Digitally Controlled 'Quad' Amp Array IC - a Member of the CML DuraTALK Family

Features:

4 Digitally Controlled Low-Noise Amplifiers
15 gain/Attenuation Steps
3 Trimmers, each with a +/-3dB Range in 0.43dB Steps
1 'Volume' trimmer with a +/-14db Range, in 2.0dB Steps
8-Bit Serial Data Control
Output Mute Function

Applications:

Gain Control Applications
Audio, Data, Telecommunications, Radio and Industrial Applications

Packages:

MX019DW - 16-pin SOIC

Supply Requirement:

4.5 to 5.5 V power supply

Description

The MX019 Digitally Adjustable Amplifier Array is available to enhance communications applications where d.c., voice or data signals need adjustment.

The MX019 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.

This product 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 operations.

Block Diagram

MX019: four digitally controlled amplifier stages, each with 15 distinct gain/attenuation steps

Download or read larger version of MX019 quad amplifier IC block diagram