PAM8406DR

A Product Line of Diodes Incorporated PAM8406 ALTERNATIVE 5W STEREO AUDIO AMPLIFIER Description Pin Assignments The PAM8406 is a 5W audio amplifier with an alternative option between Class-D and Class-AB output which makes PAM8406 very ideally for the applications efficiency-EMI compatible. PAM8406 offers low THD+N, high SNR allowing it to achieve highquality sound reproduction. The fully differential output wi th new filter less architecture (Class-D Mode) allows the device to drive the speaker directly, requiring no low-pass output filters and DC blocking capacitors, thus to save the system cost and PCB area. The efficiency of the PAM8406 is up to 90%. It can extend the battery life, ideally for portable applications. The PAM8406 is fully protected against faults with short circuit protection and thermal protection. The PAM8406 is available in SOP-16L/SOP-16(EP) package. Features   Alternative Output: Class-D or Class-AB 5W Output at 10% THD with a 2Ω Load and 5V Power Supply at Class-D Mode  3W Output at 10% THD with a 4Ω Load and 5V Power Supply  Filterless, Low Quiescent Current and No EMI  Low THD+N at Fully Output Range  Superior Low Noise  Efficiency up to 90% with Class-D Mode  No Pop At Turn-on/off  Fully Short Circuit Protection With Auto Recovery  Thermal Shutdown  Few External Components to Save the Space and Cost  SOP-16L/SOP-16(EP) Package Applications  LCD TVs  Mutimedia Speakers  AM/FM System  DABs Typical Applications Circuit PAM8406 Document number: DSxxxxx Rev. 1 - 0 1 of 14 www.diodes.com March 2013 © Diodes Incorporated A Product Line of Diodes Incorporated PAM8406 Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name +OUT_L PGNDL -OUT_L PVDDL MUTE VDD INL VREF MODE INR GND SHND PVDDR -OUT_R PGNDR +OUT_R Function Left Channel Positive Output Power GND Left Channel Negative Output Power VDD Mute Control Input (active low) Analog VDD Left Channel Input Internal analog reference, connect a bypass capacitor from VREF to GND. High: Class-D; Low: Class-AB Right Channel Input Analog GND Shutdown Control Input (active low) Power VDD Right Channel Negative Output Power GND Right Channel Positive Output Functional Block Diagram PAM8406 Document number: DSxxxxx Rev. 1 - 0 2 of 14 www.diodes.com March 2013 © Diodes Incorporated A Product Line of Diodes Incorporated PAM8406 Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground. Parameter Supply Voltage Input Voltage Operation Temperature Range Maximum Junction Temperature Operation Junction Temperature Storage Temperature Soldering Temperature Rating 6.0 Unit V -0.3 to VDD +0.3V -40 to +85 150 -40 to +125 -65 to +150 300, 5 sec °C Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.) Parameter Supply Voltage Range Operation Temperature Range Junction Temperature Range Rating 2.5 to 5.5 -40 to +85 -40 to +125 Unit V °C °C Thermal Information Parameter Package Symbol Max Thermal Resistance (Junction to Ambient) SOP-16 θJA 110 Thermal Resistance (Junction to Case) SOP-16 θJC 23 PAM8406 Document number: DSxxxxx Rev. 1 - 0 3 of 14 www.diodes.com Unit °C/W March 2013 © Diodes Incorporated A Product Line of Diodes Incorporated PAM8406 Electrical Characteristics (@TA = +25°C, VDD = 5V, Gain = 24dB, RL = 8Ω, both Class-AB and D mode, unless otherwise specified.) Symbol VDD Parameter Test Conditions THD+N = 1%, f = 1KHz, RL = 2Ω (Class-D) THD+N = 10%, f = 1KHz, RL = 4Ω Output Power THD+N = 1%, f = 1KHz, RL = 4Ω THD+N = 10%, f = 1KHz, RL = 8Ω THD+N = 1%, f = 1KHz, RL = 8Ω VDD = 5.0V 5.0 VDD = 3.6V 2.6 VDD = 2.5V 1.3 VDD = 5.0V 4.0 VDD = 3.6V 2.0 VDD = 2.5V 1.0 VDD = 5.0V 3.14 VDD = 3.6V 1.5 VDD = 2.5V 0.76 VDD = 5.0V 2.55 VDD = 3.6V 1.45 VDD = 2.5V 0.63 VDD = 5.0V 1.8 VDD = 3.6V 0.92 VDD = 2.5V 0.44 VDD = 5.0V 1.6 VDD = 3.6V 0.76 VDD = 2.5V VDD = 5.0V, PO = 0.1W to 1W , RL = 8Ω VDD = 3.6V, PO = 0.05W to 0.5W, RL = 8Ω VDD = 5.0V, PO = 0.1W to 2W, RL = 4Ω THD+N Total Harmonic Distortion Plus Noise VDD = 3.6V, PO = 0.05W to 2W, RL = 4Ω VDD = 5.0V, PO = 0.1W to 2W, RL = 2Ω (Class-D) VDD = 3.6V, PO = 0.05W to 1W, RL = 2Ω (Class-D) GV PSRR CS SNR VN Closed Loop Gain f = 1kHz f = 1kHz Max Units 5.5 V W W W W W W 0.36 0.15 0.11 0.15 0.11 % % 0.15 f = 1kHz % 0.11 dB VDD = 3V to 5V Power Supply Ripple Rejection VDD = 5.0V, Inputs AC-Grounded with CIN = 0.47µF f = 100Hz f = 1kHz Crosstalk VDD = 5.0V, PO = 0.5W, RL = 8Ω, GV = 24db f = 1kHz Signal-to-Noise Ratio VDD = 5.0V, THD = 1%, GV = 24db f = 1kHz 90 dB VDD = 5.0V, Inputs AC-Grounded A-Weighting No A-Weighting 100 150 µV Output Noise RL = 8Ω, THD = 10% η Typ 2.5 THD+N = 10%, f = 1KHz, RL = 2Ω (Class-D) PO Min Supply Voltage Efficiency Class D Mode f = 1kHz RL = 4Ω, THD = 10% RL = 2Ω, THD = 10% IQ Quiescent Current No Load VDD = 3.6V Document number: DSxxxxx Rev. 1 - 0 -95 dB 90 85 % 80 8 VDD = 2.5V 6 VDD = 5.0V 25 No Load VDD = 3.6V 15 mA mA 10 VDD = 2.5V PAM8406 dB 10 VDD = 5.0V Quiescent Current -70 -65 4 of 14 www.diodes.com March 2013 © Diodes Incorporated A Product Line of Diodes Incorporated PAM8406 Electrical Characteristics (cont.) (@TA = +25°C, VDD = 5V, Gain = 24dB, RL = 8Ω, both Class-AB and D mode, unless otherwise specified.) Symbol IMUTE ISD RDS(ON) Parameter Test Conditions VMUTE = 0.3V 2.4 mA VDD = 2.5V to 5.5V VSD = 0.3V PMOS NMOS