MAX9830AETA+

19-4806; Rev 1; 4/10 KIT ATION EVALU E L B AVAILA Mono 2W Class D Amplifier Features The MAX9830 mono 2W Class D amplifier provides Class AB audio performance with Class D efficiency. o Industry-Leading Quiescent Current: 1.6mA at 5V, 1.2mA at 3.6V Active emissions limiting edge rate and overshoot control circuitry greatly reduces EMI. A filterless spreadspectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices. These features reduce application component count. The MAX9830’s industry-leading 1.6mA at 5V, 1.2mA at 3.6V, quiescent current extends battery life in portable applications. The MAX9830 is available in an 8-pin TDFN (2mm x 2mm x 0.8mm) and is specified over the extended -40°C to +85°C temperature range. o Spread Spectrum and Active Emissions Limiting o Passes EMI Limit Unfiltered with Up to 24in (61cm) of Speaker Cable o Click-and-Pop Suppression o Thermal and Overcurrent Protection o Low 0.5μA Current Shutdown Mode o Space-Saving, 2mm x 2mm x 0.8mm, 8-Pin TDFN Package Applications Ordering Information Notebook and Netbook Computers Cellular Phones PART MP3 Players MAX9830AETA+ TEMP RANGE PIN-PACKAGE -40°C to +85°C 8 TDFN-EP* Portable Audio Players +Denotes a lead(Pb)-free/RoHS-compliant package. VoIP Phones *EP = Exposed pad. Typical Operating Circuit Pin Configuration TOP VIEW PVDD OUT+ OUT- PGND 8 7 6 5 +2.6V TO +5.5V 0.47μF IN+ PVDD 0.1μF 0.47μF MAX9830 IN- MAX9830 OUT+ *EP + SHDN OUT- 1 2 IN+ IN- 3 4 SHDN N.C. N.C. PGND TDFN 2mm x 2mm x 0.8mm *EP = EXPOSED PAD. CONNECT THE EP TO PGND TO ENHANCE THERMAL DISSIPATION. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX9830 General Description MAX9830 Mono 2W Class D Amplifier ABSOLUTE MAXIMUM RATINGS Voltage PVDD, IN+, IN-, SHDN, to PGND .........................-0.3V to +6V OUT+, OUT- to PGND...........................-0.3V to VPVDD + 0.3V Current Continuous Current Into/Out of PVDD, PGND, OUT+, OUT- ..............................................................±600mA Continuous Input Current (all other pins) .....................±20mA Duration of Short Circuit Between OUT+, OUT-, and PVDD, PGND ............................Continuous Continuous Power Dissipation for a Multilayer Board (TA = +70°C) 8-Pin TDFN-EP (derate 11.9mW/°C) .........................953.5mW Junction Temperature ......................................................+150°C Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) .......................................+260°C Rate of Voltage Rise at PVDD .............................................1V/μs Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VPVDD = VSHDN = 5V, VPGND = 0V, RL = h, unless otherwise specified. RL connected between OUT+ and OUT-, AC measurement bandwidth 20Hz to 22kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 5.5 V SPEAKER AMPLIFIER Voltage Range PVDD Quiescent Supply Current IDD Shutdown Supply Current ISHDN Inferred from PSRR test 2.6 VPVDD = 5.0V 1.6 VPVDD = 3.6V 1.2 VSHDN = 0V, TA = +25°C 0.5 10 μA 4 ms Turn-On Time tON 1.9 Bias Voltage VBIAS 1.31 Maximum AC Input Voltage Input Resistance in Shutdown VIN RINSD Input Resistance RIN Voltage Gain AV Single ended 1 Differential 2 Between inputs CMRR fIN = 1kHz, input referred Power-Supply Rejection Ratio PSRR PVDDRIPPLE = 200mVP-P (Note 3) VPVDD = 2.6V to 5.5V, TA = +25°C Total Harmonic Distortion Plus Noise Output Offset Voltage Click-and-Pop Level 2 POUT THD+N THD+N = 10%, fIN = 1kHz fIN = 1kHz VOS TA = +25°C KCP Peak voltage, A-weighted, 32 samples/sec (Notes 3, 4) VRMS kΩ 43 12 54 mA V 85.6 From inputs to PGND Common-Mode Rejection Ratio Output Power 2.5 20 kΩ 12 dB 48 dB 64.3 fRIPPLE = 217Hz 72 fRIPPLE = 20kHz 64 RL = 8Ω 1.5 RL = 4Ω 2.25 RL = 8Ω, POUT = 0.5W 0.04 RL = 4Ω, POUT = 1W 0.04 ±3 Into shutdown -56 Out of shutdown -56 dB W % ±30 mV dBV _______________________________________________________________________________________ Mono 2W Class D Amplifier (VPVDD = VSHDN = 5V, VPGND = 0V, RL = h, unless otherwise specified. RL connected between OUT+ and OUT-, AC measurement bandwidth 20Hz to 22kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2) PARAMETER Oscillator Frequency SYMBOL CONDITIONS MIN fOSC VN kHz ±10 kHz 39 μVRMS 98 dB SNR POUT = POUT at 1% THD+N, A-weighted RL = 8Ω Output Current Limit ILIM TA = +25°C Thermal Shutdown Level Thermal Shutdown Hysterysis η UNITS A-weighted (Note 3) Signal-to-Noise Ratio Efficiency MAX 600 Spread-Spectrum Bandwidth Noise TYP RL = 8Ω, POUT = 1.5W 3 A +180 °C 30 °C 85 % DIGITAL INPUT (SHDN) Input Voltage High VIH Input Voltage Low VIL Input Leakage Current 1.4 TA = +25°C V 0.4 V ±10 μA Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design. Note 2: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For RL = 4