Preliminary EUA4992 2W Stereo Audio Power Amplifier DESCRIPTION FEATURES The EUA4992 is a dual bridge-connected audio power amplifier designed for portable communication device applications such as mobile phone applications. The EUA4992 is capable of delivering 1.3W of continuous average power to an 8Ω 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 SHUTDOWN 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). z z z z z z z z z APPLICATIONS The EUA4992 is available in a 3mm×3mm TQFN package. z z z z Typical Application Circuit Figure1. DS4992 Ver 0.1 Jan. 2008 Output Power at 1% THD+N, VDD=5V -- 2W/CH (typ) into a 4Ω Load -- 1.3W/CH (typ) into a 8Ω Load 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 Shutdown Current 0.04µA (typ) Supply Voltage Range 2.5V to 5.5V Suppress “ click and pop” Thermal Shutdown Protection Circuitry Micro Power Shutdown Mode TQFN-16 (3mm × 3mm) Package RoHS compliant and 100% lead(Pb)-free 1 Cell phones, PDA, MP4,PMP Portable and Desktop Computers Desktops audio System Multimedia Monitors EUA4992 Preliminary Pin Configurations Package Type Pin Configurations TQFN-16 Pin Description NAME PIN I/O 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 SHUTDOWN 15 BYPASS 9 GND 5,6,7,13,14,16 DS4992 Ver 0.1 Jan. 2008 DESCRIPTION Supply Voltage I Shutdown control, hold low for shutdown mode Bypass capacitor which provides the common mode voltage GND 2 Preliminary EUA4992 Ordering Information Order Number Package Type Marking Operating Temperature range EUA4992JIR1 TQFN-16 xxxxx 4992 -40 °C to 85°C EUA4992 □ □ □ □ Lead Free Code 1: Lead Free 0: Lead Packing R: Tape & Reel Operating temperature range I: Industry Standard Package Type J: TQFN DS4992 Ver 0.1 Jan. 2008 3 EUA4992 Preliminary Absolute Maximum Ratings ▓ ▓ ▓ ▓ Supply voltage ---------------------------------------------------------------------------------------------6V Input voltage --------------------------------------------------------------------------------- -0.3 V to VDD +0.3V Storage temperature rang, Tstg ------------------------------------------------------------------- -65°C to 150°C Junction Temperature -------------------------------------------------------------------------------------- 150°C 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. Symbol VDD Parameter Supply Voltage Quiescent Power Supply Current IDD Conditions Min EUA4992 Typ Max. 2.5 Unit 5.5 V VIN=0V,IO=0A 6 14 mA GND applied to the shutdown pin 1 3 µA ISD Shutdown Current VIH Shutdown Input Voltage High VIL Shutdown Input Voltage Low TWU Turn on time 1µF bypass cap (C4) VOS Output Offset Voltage VIN=0V 5 W Output Power THD+N=1%, f=1KHz RL=4Ω 2 PO THD+N=1%, f=1KHz RL=8Ω 1.3 W Total Harmonic Distortion + Noise 1KHz, Avd=2 RL=8Ω,Po=1W 0.08 % Power Supply Rejection Ratio Input grounded 217Hz Vripple=200m Vp-p C4=1µF, RL=8Ω Input grounded 1KHz Vripple=200m Vp-p C4=1µF, RL=8Ω THD+N PSRR 1 V 0.4 100 V ms 25 mV 51 dB 60 Xtalk Channel separation f=1KHz, C4=1µF 65 dB VNO Output noise voltage 1KHz 11 uVrms DS4992 Ver 0.1 Jan. 2008 4 EUA4992 Preliminary Electrical Characteristics (3.3V) The following specifications apply for VDD=3.3V unless otherwise noted. Limits apply for TA=25°C. Symbol Parameter Conditions EUA4992 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 Voltage High VIL Shutdown Input Voltage Low TWU Turn on time 1µF bypass cap (C4) 100 ms VOS Output Offset Voltage VIN=0V 2.5 mV W Output Power THD+N=1%, f=1KHz RL=4Ω 0.84 PO THD+N=1%, f=1KHz RL=8Ω 0.54 W Total Harmonic Distortion + Noise 1KHz, Avd=2 RL=8Ω,Po=0.45W 0.08 % Power Supply Rejection Ratio Input grounded 217Hz Vripple=200m Vp-p C4=1µF, RL=8Ω Input grounded 1KHz Vripple=200m Vp-p C4=1µF, RL=8Ω THD+N PSRR 1 0.4 Xtalk Channel separation f=1KHz, C4=1µF VNO Output noise voltage 1KHz DS4992 Ver 0.1 Jan. 2008 V 5 V 52 dB 60 60 dB 10.15 uVrms EUA4992 Preliminary Packaging Information TQFN-16 SYMBOLS A A1 b E D D1 E1 e L DS4992 Ver 0.1 Jan. 2008 MILLIMETERS MIN. MAX. 0.70 0.80 0.00 0.05 0.18 0.30 2.90 3.10 2.90 3.10 1.70 1.70 0.50 0.30 0.50 6 INCHES MIN. 0.028 0.000 0.007 0.114 0.114 MAX. 0.031 0.002 0.012 0.122 0.122 0.067 0.067 0.020 0.012 0.020