FEATURES
4 Digitally Controlled Amplifiers 15 Gain/Attenuation Steps 3 Amplifiers ± 3dB Range in 0.43dB Steps 1 'Volume' Amplifier ±14dB Range in 2dB Steps 8-Bit Serial Data Control Output Mute Function SERIAL CLOCK INPUT SERIAL DATA INPUT 2 1 Quad Digital Control Amplifier APPLICATIONS
Gain Control APPLICATIONS
Audio Data Telecommunications, Radio, & Industrial APPLICATIONS
8-BIT SERIAL DATA INPUT LOAD/LATCH LOAD/LATCH 3 VOLUME 4 Ch1 Ch4 VDD VBIAS 2 3 VSS CHIP ADDRESS Ch2 Ch3 2 1 4 3 CONTROLLED AUDIO OUTPUT LINES 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, while the remaining amplifier offers a 14dB range in steps of 2dB, and is suggested for volume control applications. This array uses a Chip Select input to select one of two MX019s in a system. The MX019 uses the host microprocessor to digitally control the set-up of all audio levels during development, production/calibration, and operation.