EUA4992

Preliminary EUA4992 2W Stereo Audio Power Amplifier DESCRIPTION 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). The EUA4992 is available in a 3mm×3mm TQFN package. FEATURES 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 APPLICATIONS Cell phones, PDA, MP4,PMP Portable and Desktop Computers Desktops audio System Multimedia Monitors Typical Application Circuit Figure1. DS4992 Ver 0.1 Jan. 2008 1 Preliminary Pin Configurations Package Type Pin Configurations EUA4992 TQFN-16 Pin Description NAME INA INB -OUTA +OUTA -OUTB +OUTB VDD SHUTDOWN PIN 4 8 3 1 10 12 2,11 15 9 5,6,7,13,14,16 I/O I I O O O O I Left Channel Input Right Channel Input Left Channel –Output Left Channel +Output Right Channel –Output Right Channel +Output Supply Voltage DESCRIPTION Shutdown control, hold low for shutdown mode Bypass capacitor which provides the common mode voltage GND BYPASS GND DS4992 Ver 0.1 Jan. 2008 2 Preliminary Ordering Information Order Number EUA4992JIR1 Package Type TQFN-16 Marking xxxxx 4992 EUA4992 Operating Temperature range -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 Preliminary Absolute Maximum Ratings ▓ ▓ EUA4992 ▓ ▓ 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 Supply voltage (from AC input),VCC Operating junction temperature range, TJ 2.5 -40 Max 5.5 125 Unit V °C Electrical Characteristics (5V) The following specifications apply for VDD=5V unless otherwise noted. Limits apply for TA=25°C. Symbol VDD IDD ISD VIH VIL TWU VOS PO THD+N Parameter Supply Voltage Quiescent Power Supply Current Shutdown Current Conditions VIN=0V,IO=0A GND applied to the shutdown pin Min 2.5 EUA4992 Typ Max. 5.5 6 1 14 3 Unit V mA µA V Shutdown Input Voltage High Shutdown Input Voltage Low Turn on time Output Offset Voltage Output Power Total Harmonic Distortion + Noise 1µF bypass cap (C4) VIN=0V THD+N=1%, f=1KHz RL=4Ω THD+N=1%, f=1KHz RL=8Ω 1KHz, Avd=2 RL=8Ω,Po=1W Input grounded 217Hz Vripple=200m Vp-p C4=1µF, RL=8Ω Input grounded 1KHz Vripple=200m Vp-p C4=1µF, RL=8Ω f=1KHz, C4=1µF 1KHz 1 0.4 100 5 2 1.3 0.08 51 25 V ms mV W W % PSRR Power Supply Rejection Ratio dB 60 65 11 dB uVrms Xtalk VNO Channel separation Output noise voltage DS4992 Ver 0.1 Jan. 2008 4 Preliminary Electrical Characteristics (3.3V) Symbol IDD ISD VIH VIL TWU VOS PO THD+N EUA4992 EUA4992 Min Typ Max. 4.1 0.02 1 0.4 The following specifications apply for VDD=3.3V unless otherwise noted. Limits apply for TA=25°C. Parameter Quiescent Power Supply Current Shutdown Current Conditions VIN=0V,IO=0A GND applied to the shutdown pin Unit mA µA V V ms mV W W % Shutdown Input Voltage High Shutdown Input Voltage Low Turn on time Output Offset Voltage Output Power Total Harmonic Distortion + Noise 1µF bypass cap (C4) VIN=0V THD+N=1%, f=1KHz RL=4Ω THD+N=1%, f=1KHz RL=8Ω 1KHz, Avd=2 RL=8Ω,Po=0.45W Input grounded 217Hz Vripple=200m Vp-p C4=1µF, RL=8Ω Input grounded 1KHz Vripple=200m Vp-p C4=1µF, RL=8Ω f=1KHz, C4=1µF 1KHz 100 2.5 0.84 0.54 0.08 52 PSRR Power Supply Rejection Ratio dB 60 60 10.15 dB uVrms Xtalk VNO Channel separation Output noise voltage DS4992 Ver 0.1 Jan. 2008 5 Preliminary Packaging Information TQFN-16 EUA4992 SYMBOLS A A1 b E D D1 E1 e L 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 INCHES MIN. 0.028 0.000 0.007 0.114 0.114 0.067 0.067 0.020 0.012 0.020 MAX. 0.031 0.002 0.012 0.122 0.122 DS4992 Ver 0.1 Jan. 2008 6