EUA6019QIT1

EUA6019 3-W Stereo Audio Power Amplifier with Advanced DC Volume Control DESCRIPTOIN The EUA6019 is a stereo audio power amplifier that drives 3 W/channel of continuous RMS power into a 3-Ω load. Advanced dc volume control minimizes external components and allows BTL (speaker) volume control and SE (headphone) volume control. Notebook and pocket PCs benefit from the integrated feature set that minimizes external components 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 Advanced DC Volume Control With 2-dB Steps From -40 dB to 20 dB -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 RoHS Compliant and 100% Lead (Pb)-Free APPLICATIONS Notebook PC LCD Monitors Pocket PC DS6019 Ver 1.1 May. 2007 1 EUA6019 Block Diagram DS6019 Ver 1.1 May. 2007 2 EUA6019 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 3 EUA6019 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 Common left channel input for fully differential input. AC ground for single-ended inputs. Supply voltage terminal Common 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 input, selected when HP/ LINE is held high Right channel negative audio output Right channel positive audio output 15 16 17 18 19 20 21 22 23 14 I I I I I I I I O Places the amplifier in shutdown mode if a TTL logic low is placed on this terminal Places the amplifier in fade mode if a logic low is placed on this terminal; normal operation if a logic high is placed on this terminal Tap to voltage divider for internal midsupply bias generator used for analog reference Analog power supply ground Sets the maximum volume for single ended operation. DC voltage range is 0 to VDD. Sets the difference between BTL volume and SE volume. DC voltage range is 0 to VDD. Terminal for dc volume control. DC voltage range is 0 to VDD. Input MUX control. When logic high, RHPIN and LHPIN inputs are selected .When logic low, RLINEIN and LLINEIN inputs are selected. Output MUX control. When this terminal is high, SE outputs are selected. When this terminal is low, BTL outputs are selected. Left channel positive audio output. FADE BYPASS AGND SEMAX SEDIFF VOLUME HP/ LINE SE/ BTL LOUT+ DS6019 Ver 1.1 May. 2007 4 EUA6019 Ordering Information Order Number EUA6019QIR1 Package Type TSSOP 24 Marking xxxxx A6019A xxxxx A6019A Operating Temperature range -40 °C to 85°C EUA6019QIT1 TSSOP 24 -40 °C to 85°C EUA6019 □□□□ Lead Free Code 1: Lead Free 0: Lead Packing R: Tape& Reel T: Tube Operating temperature range I: Industry Standard Package Type Q: TSSOP DS6019 Ver 1.1 May. 2007 5 EUA6019 Absolute Maximum Ratings Supply voltage, VDD------------------------------------------------------------------------------------------------ 6V Input voltage, VI------------------------------------------------------------------------------ –0.3 V to VDD +0.3 V Continuous total power dissipation---------------------------- internally limited (see Dissipation Rating Table) Operating free-air temperature range, TA--------------------------------------------------------- –40°C to 85° C Operating junction temperature range, TJ ------------------------------------------------------ - –40°C to 150°C Storage temperature range, Tstg------------------------------------------------------------------ -- –65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds----------------------------------------- 260°C Thermal Resistance θJA (TSSOP) ------------------------------------------------------------------------ 87.9°C/W Recommended Operating Conditions Min Supply voltage, VDD High-level input voltage, VIH Low-level input voltage, VIL Operating free-air temperature, TA SE/ BTL , HP/ LINE , FADE SHUTDOWN SE/ BTL , HP/ LINE , FADE SHUTDOWN -40 4 VDD × 0.8 2 VDD × 0.6 0.8 85 Max 5.5 Unit V V V °C Electrical Characteristics at Specified Free-air Temperature, VDD = PVDD=5.5V, TA = 25°C Symbol Parameter Output offset voltage (measured differentially) Power supply rejection ratio High-level input current ( SE/ BTL , SHUTDOWN , FADE , HP/ LINE ,SEMAX, VOLUME,SEDIFF) Low-level input current Conditions VDD= 5.5V,Gain=0 dB, SE/ BTL =0V VDD= 5.5V,Gain=20 dB, SE/ BTL =0V VDD= PVDD= 4 V to 5.5 V EUA6019 Min. Typ. Max. 30 50 -40 -68 Unit mV mV dB VOO PSRR IIH IIL VDD= PVDD=5.5V, VI = VDD =PVDD 1 µA VDD= PVDD=5.5V, VI = 0V VDD= PVDD=5.5V, SE/ BTL =0V, SHUTDOWN =2V VDD= PVDD=5.5V, SE/ BTL =5.5V SHUTDOWN =2V VDD= PVDD=5.5V, SE/ BTL =0V, SHUTDOWN =2V,RL=3Ω, Po=2 W, stereo SHUTDOWN =0V 7.3 1 µA IDD Supply current, no load mA 4.4 1.5 1 20 ARMS µA IDD IDD(SD) Supply current, max power into a 3-Ω load Supply current, shutdown mode DS6019 Ver 1.1 May. 2007 6 EUA6019 Operating Characteristics, VDD =PVDD= 5V, TA = 25°C, RL = 3Ω, Gain =6 dB Symbol Parameter Conditions THD=1%, f=1kHz THD=10%, f=1kHz,VDD=5.5V Total harmonic distortion plus noise High-level output voltage PO=1W, RL=8Ω,f=1 kHz EUA6019 Min. Typ. 2 3