EUA6019 Datasheet | Eutech Microelectronics

feature set that minimizes external ponents without sacrificing functionality. To simplify design, the speaker volume level is adjusted by applying a dc voltage to the VOLUME terminal. Likewise, the delta between speaker volume and headphone volume can be adjusted by applying a dc voltage to the SEDIFF terminal. To avoid an unexpected high volume level through the headphones, a third terminal, SEMAX, limits the headphone volume level when a dc voltage is applied. Finally, to ensure a smooth transition between active and shutdown modes, a fade mode ramps the volume up and down. FEATURES z Advanced DC Volume Control With 2-d B Steps From -40 d B to 20 d B -Fade Mode -Maximum Volume Setting for SE Mode -Adjustable SE Volume Control Referenced to BTL Volume control 3 W into 3-Ω Speakers Stereo Input MUX Differential Inputs Ro HS pliant and 100% Lead (Pb)-Free z z z z APPLICATIONS z z z Notebook PC LCD Monitors Pocket PC DS6019 Ver 1.1 May. 2007 .Data Sheet.in Block Diagram DS6019 Ver 1.1 May. 2007 .Data Sheet.in Typical Application Circuit Figure 1. Application circuit using single-ended inputs and input MUX Figure 2. Application circuit using differential inputs DS6019 Ver 1.1 May. 2007 .Data Sheet.in Pin Configurations Package Type Pin Configurations(Top View) TSSOP-24 Pin Description PIN PIN I/O DESCRIPTION PGND LOUTPVDD LHPIN LLINEIN LIN VDD RIN RLINEIN RHPIN ROUTROUT+ SHUTDOWN 1,13 12 3,11 10 9 8 7 6 5 4 2 24 O I I I I I I O O Power ground Left channel negative audio output Supply voltage terminal for power stage Left channel headphone input, selected when HP/ LINE is held high Left channel line input, selected when HP/ LINE is held low mon left channel input for fully differential input. AC ground for single-ended inputs. Supply voltage terminal mon right channel input for fully differential input. AC ground for single-ended inputs. Right channel line input, selected when HP/ LINE is held low Right channel headphone...