PAM8320 XXXYWWLL A PRODUCT LINE OF DIODES INCORPORATED PAM8320 20W Mono Class D Audio Amplifier Description Pin Assignments The PAM8320 is an efficient 20W mono Class-D audio power SO-16EP amplifier, designed to drive speakers as low as 4 in a bridge-tied- load configuration. Due to the low power dissipation and high 1 16 PGNDN PVCCN efficiency of up to 95%, the device can be used without any external SDN 15 2 OUTN heat sink whilst playing music. IN 3 14 BSN The PAM8320 features short circuit protection, thermal shutdown, VCM 4 13 AVCC over voltage protection and under voltage lock-out. AGND 5 MUTE 12 AGND 6 11 BSP The PAM8320 is available in a SO-16EP package. 7 VCLAMP 10 OUTP 8 9 PGNDP PVCCP Features Applications Operates from 4.5V to 15V PC Speaker 20W into 4 BTL Load from 12V Supply Blue Tooth Speaker Single-Ended Analog Input Home Sound Systems No Pop Noise for Start-up and Shut-down Sequences Active Speakers Internal Oscillator (No External Components Required) Docking stations High Efficient Class-D Operation Eliminates Need for Heat Sinks Thermal and Short-Circuit Protection with Auto Recovery Over Voltage Protection and Under Voltage Lock-out Space-Saving Surface-Mount SO-16EP Package Pb-Free Package Typical Applications Circuit 1 of 11 October 2013 PAM8320 Diodes Incorporated www.diodes.com Document number: DS36610 Rev. 1 - 2 New Product A PRODUCT LINE OF DIODES INCORPORATED PAM8320 Pin Descriptions Pin Name I/O/P Description 1 PVCCN P Power supply for negative H-bridge, not connected to PVCCP or AVCC Shutdown signal for IC (low=shutdown, high=operational). TTL logic levels with compliance to 2 SDN I AVCC 3 IN I Audio input 4 VCM O Reference for analog cells 5,6 AGND P Analog ground for digital/analog cells in core Internally generated voltage supply for bootstrap. Not to be used as a supply or connected to 7 VCLAMP P any component other than the decoupling capacitor. 8 PVCCP P Power supply for positive H-bridge, not connected to PVCCN or AVCC 9 PGNDP P Power ground for positive H-bridge 10 OUTP O Positive BTL output 11 BSP I/O Bootstrap terminal for high-side drive of positive BTL output A logic high on this pin disables the outputs. A low on this pin enables the outputs. TTL logic 12 MUTE I levels with compliance to AVCC 13 AVCC P High-voltage analog power supply 14 BSN I/O Bootstrap terminal for high-side drive of negative BTL output 15 OUTN O Negative BTL output 16 PGNDN P Power ground for negative H-bridge Functional Block Diagram 2 of 11 October 2013 PAM8320 Diodes Incorporated www.diodes.com Document number: DS36610 Rev. 1 - 2 New Product