MX029
Features
Dual Digitally Controlled Amplifier PRELIMINARY INFORMATION Applications
Cellular and LMR Radios PABX’s, Electronic Mail, TAM's Automatic Test Equipment Remote Gain Adjustments Digitally Set Audio Control Levels
2 Digitally Controlled Amplifiers ±48d B Gain/Attenuation in 2d B Steps + Mute Individual Control with a 14-Bit Serial Word Separate Fixed Gain Buffer Amplifier
SERIAL CLOCK DATA INPUT LOAD/LATCH
SERIAL INTERFACE
STAGE 1 CONTROL REGISTER
VSS BIAS VSS BIAS
CH1, INPUT 1 CH1, INPUT 2 CH1, INPUT 3
TO STAGE 1 CONTROL REGISTER
CH1, OUTPUT 1
∆G
CH1, OUTPUT 2
BIAS
STAGE 1 CONTROL REGISTER
VSS CH2, INPUT 1
BIAS
∆G
CH2, INPUT 2
CH2, OUTPUT 1
UNIVERSAL AMP IN
UNIVERSAL AMP OUT
BIAS
The MX029 Digitally Controlled Amplifier Array replaces audio level controls in radio and wireline munications applications. It is a single-chip LSI circuit prised of two discrete, digitally controlled gain sections. Each section has 48 distinct gain steps...
