EUA4992 EUTECH | Alldatasheet

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Technical content

DS4992 Ver 0.1 Jan. 2008 2W Stereo Audio Power Amplifier

DESCRIPTION

The EUA4992 is a dual bridge-connected audio power amplifier designed for portable communication device applications such as mobi le phone applications. The EUA4992 is capable of delivering 1.3W of continuous average power to an 8 Ω BTL and with less than 1% distortion (THD+N) from a 5.0V power supply, and 540mW to an 8Ω BTL load from a 3.3V power supply. The EUA4992 provides high quality audio while requiring few external components and minimal power consumption. It features a low-power shutdown mode, which is achieved by driving the pin with logic low. The EUA4992 contains circuitry to prevent from ”pop and click” noise that would otherwise occur during turn-on and turn-off transitions. For maximum flexibility, the EUA4992 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on and turn-off times (with the bypass capacitor). The EUA4992 is available in a 3mm×3mm TQFN package. Typical Application Circuit

FEATURES

z Output Power at 1% THD+N, VDD=5V -- 2W/CH (typ) into a 4Ω Load -- 1.3W/CH (typ) into a 8Ω Load z Output Power at 1% THD+N, VDD=3.3V -- 0.84W/CH (typ) into a 4Ω Load -- 0.54W/CH (typ) into a 8Ω Load z Shutdown Current 0.04µA (typ) z Supply V oltage Range 2.5V to 5.5V z Suppress “ click and pop” z Thermal Shutdown Protection Circuitry z Micro Power Shutdown Mode z TQFN-16 (3mm×3mm) Package z RoHS compliant and 100% lead(Pb)-free

APPLICATIONS

z Cell phones, PDA, MP4,PMP z Portable and Desktop Computers z Desktops audio System z Multimedia Monitors Figure1. SHUTDOWN

DS4992 Ver 0.1 Jan. 2008 Pin Configurations Package Type Pin Configurations TQFN-16 Pin Description NAME PIN I/O DESCRIPTION INA 4 I Left Channel Input INB 8 I Right Channel Input -OUTA 3 O Left Channel –Output +OUTA 1 O Left Channel +Output -OUTB 10 O Right Channel –Output +OUTB 12 O Right Channel +Output VDD 2,11 Supply V oltage SHUTDOWN 15 I Shutdown control, hold low for shutdown mode BYPASS 9 Bypass capacitor which provides the common mode voltage GND 5,6,7,13,14,16 GND

DS4992 Ver 0.1 Jan. 2008

Ordering Information

Order Number Package Type Marking Operating Temperature range EUA4992JIR1 TQFN-16 xxxxx 4992 -40 °C to 85°C EUA4992 □ □ □ □ L e a d F r e e C o d e 1 : L e a d F r e e 0 : L e a d P a c k i n g R : T a p e & R e e l Operating temperature range I: Industry Standard Package Type J : T Q F N

DS4992 Ver 0.1 Jan. 2008 Absolute Maximum Ratings Recommended Operating Conditions Min Max Unit Supply voltage (from AC input),VCC 2.5 5.5 V Operating junction temperature range, TJ -40 125 °C Electrical Characteristics (5V) The following specifications apply for VDD=5V unless otherwise noted. Limits apply for TA=25°C. EUA4992 Symbol Parameter Conditions Min Typ Max. Unit VDD Supply V oltage 2.5 5.5 V IDD Quiescent Power Supply Current VIN=0V ,IO=0A 6 14 mA ISD Shutdown Current GND applied to the shutdown pin 1 3 µA VIH Shutdown Input V oltage High 1 V VIL Shutdown Input V oltage Low 0.4 V TWU Turn on time 1 µF bypass cap (C4) 100 ms VOS Output Offset V oltage V IN=0V 5 25 mV THD+N=1%, f=1KHz RL=4Ω 2 W PO Output Power THD+N=1%, f=1KHz RL=8Ω 1.3 W THD+N Total Harmonic Distortion + Noise 1KHz, Avd=2 RL=8Ω,Po=1W 0.08 % Input grounded 217Hz Vripple=200m Vp-p C4=1µF, RL=8Ω PSRR Power Supply Rejection Ratio Input grounded 1KHz Vripple=200m Vp-p C4=1µF, RL=8Ω dB Xtalk Channel separation f=1KHz, C4=1 µF 65 dB VNO Output noise voltage 1KHz 11 uVrms

DS4992 Ver 0.1 Jan. 2008 Electrical Characteristics (3.3V) The following specifications apply for VDD=3.3V unless otherwise noted. Limits apply for TA=25°C. EUA4992 Symbol Parameter Conditions Min Typ Max. Unit IDD Quiescent Power Supply Current VIN=0V ,IO=0A 4.1 mA ISD Shutdown Current GND applied to the shutdown pin 0.02 µA VIH Shutdown Input V oltage High 1 V VIL Shutdown Input V oltage Low 0.4 V TWU Turn on time 1 µF bypass cap (C4) 100 ms VOS Output Offset V oltage V IN=0V 2.5 mV THD+N=1%, f=1KHz RL=4Ω 0.84 W PO Output Power THD+N=1%, f=1KHz RL=8Ω 0.54 W THD+N Total Harmonic Distortion + Noise 1KHz, Avd=2 RL=8Ω,Po=0.45W 0.08 % Input grounded 217Hz Vripple=200m Vp-p C4=1µF, RL=8Ω PSRR Power Supply Rejection Ratio Input grounded 1KHz Vripple=200m Vp-p C4=1µF, RL=8Ω dB Xtalk Channel separation f=1KHz, C4=1 µF 60 dB VNO Output noise voltage 1KHz 10.15 uVrms

DS4992 Ver 0.1 Jan. 2008 Packaging Information TQFN-16 MILLIMETERS INCHES SYMBOLS MIN. MAX. MIN. MAX. A 0.70 0.80 0.028 0.031 A1 0.00 0.05 0.000 0.002 b 0.18 0.30 0.007 0.012 E 2.90 3.10 0.114 0.122 D 2.90 3.10 0.114 0.122 D1 1.70 0.067 E1 1.70 0.067 e 0.50 0.020 L 0.30 0.50 0.012 0.020