PAM8404ZER

PAM8404 3W/CH FILTERLESS STEREO CLASS-D AUDIO AMPLIFIER Description Pin Assignments The DIODES™ PAM8404 is a 3W high-efficiency filterless Class-D audio amplifier in 4mm x 4mm and 2mm x 2mm wafer chip scale (WCSP) packages that requires few external components. Features like 89% efficiency, -63dB PSRR, improved RF-rectification immunity, and very small PCB area make the PAM8404 Class-D amplifier ideal for cellular handsets and PDA applications. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the PAM8404. The PAM8404 allows independent gain by summing signals from seperate sources, and has as low as 43µV noise floor. PAM8404 is available in QFN 4mm x 4mm and WCSP 2mm x 2mm packages. Features             3W Output at 10% THD with a 4Ω Load and 5V Supply Supply Voltage from 2.5V to 5.5V Efficiency Up to 89% Superior Low Noise without Input Few External Components to Save the Space and Cost Short Circuit Protection Thermal Shutdown Space Saving Packages :  2mm x 2mm WCSP  4mm x 4mm Thin QFN Pb-Free Packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Applications  LCD Monitor / TV Projector     Notebook Computers Portable Speakers Portable DVD Players, Game Machines Cellular Phones/Speaker Phones DIODES is a trademark of Diodes Incorporated in the United States and other countries. 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PAM8404 Document number: DS36446 Rev. 2 - 2 1 of 18 www.diodes.com June 2022 © Diodes Incorporated PAM8404 Typical Applications Circuit Pin Descriptions Pin Name G1 OUTL+ PVDD PGND OUTLNC SDL SDR AVDD OUTROUTR+ G0 INR+ INRAGND INLINL+ Pin Number U-QFN4040-20 WCSP2x2 1 B2 2 A3 313 A2 412 C4 5 A4 610 — 7 B4 8 B3 9 D2 11 D4 14 D3 15 C2 16 D1 17 C1 18 C3 19 B1 20 A1 PAM8404 Document number: DS36446 Rev. 2 - 2 Function Gain Select (MSB) Left Channel Positive Differential Output Power Supply (Must be Same Voltage as AVDD) Power Ground Left Channel Negative Differential Output Not Connected Left Channel Shutdown Terminal (active low) Right Channel Shutdown Terminal (active low) Analog Supply (Must be Same Voltage as PVDD) Right Channel Negative Differential Output Right Channel Positive Differential Output Gain Select (LSB) Right Channel Positive Input Right Channel Negative Input Analog Ground Left Channel Negative Input Left Channel Positive Input 2 of 18 www.diodes.com June 2022 © Diodes Incorporated PAM8404 Functional Block Diagram Note: 1. For the QFN package, G0 and G1 pin have an internal 300KΩ pull-down resistor. 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 Maximum Junction Temperature Storage Temperature Soldering Temperature Rating 6.0 Unit V -0.3 to VDD +0.3 150 -65 to +150 250, 10sec °C Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.) Parameter Supply Voltage Range Operation Temperature Range Rating 2.5 to 5.5 -40 to +85 Unit V °C Junction Temperature Range -40 to +125 °C Thermal Information Parameter Thermal Resistance (Junction to Ambient) Thermal Resistance (Junction to Case) PAM8404 Document number: DS36446 Rev. 2 - 2 Package WCSP2x2-16 U-QFN4040-20 WCSP2x2-16 U-QFN4040-20 Symbol θJA θJC 3 of 18 www.diodes.com Max 64 31 — 13 Unit °C/W June 2022 © Diodes Incorporated PAM8404 Electrical Characteristics U-QFN4040-20 Symbol (@TA = +25°C, AVDD = PVDD = 5V, GND = PGND = 0V, unless otherwise specified.) Parameter Test Conditions THD+N = 1%, f = 1kHz, RL = 4Ω Output Power PO THD+N = 10%, f = 1kHz, RL = 8Ω THD+N = 1%, f = 1kHz, RL = 8Ω VDD = 5.0V, Po = 0.5W, RL = 8Ω THD+N Total Harmonic Distortion Plus Noise VDD = 3.6V, Po = 0.5W, RL = 8Ω VDD = 5.0V, Po = 1W, RL = 4Ω VDD = 3.6V, Po = 1W, RL = 4Ω PSRR CS SNR VN Dyn Power Supply Ripple Rejection VDD = 5.0V, Inputs AC-Grounded with CIN = 1.0μF Crosstalk VDD = 5V, Po = 0.5W, RL = 4Ω, Gv = 23dB Signal-to-Noise VDD = 5V, VORMS = 1VGv = 23dB Output Noise VDD = 5V, Inputs AC-Grounded with CIN = 1μF BW 22Hz – 22kHz Dynamic Range η Efficiency IQ Quiescent Current ISD Shutdown Current (Note 2) VDD = 5V, THD = 1% RL = 8Ω, THD = 10% RL = 4Ω, THD = 10% VDD = 5.0V VDD = 5.0V 3 VDD = 3.6V 1.5 VDD = 5.0V 2.35 VDD = 3.6V 1.2 VDD = 5.0V 1.7 VDD = 3.6V 0.9 VDD = 5.0V 1.4 VDD = 3.6V 0.7 f = 1kHz f = 1kHz VDD = 3.6V 0.15 0.27 0.23 0.24 Max Units 5.5 V W W W W % % f = 100kHz f = 1kHz -48 -63 dB f = 1kHz -93 dB A-weighting 87 dB A-weighting 43 No A-weighting 59 A-weighting 97 f = 1kHz No load 89 84 11 6 µV dB % mA