NOT RECOMMENDED FOR NEW DESIGN USE PAM8006A PAM8610 10W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL Description Pin Assignments The PAM8610 is a 10W (per channel) stereo Class-D audio amplifier with DC Volume Control which offers low THD+N (0.1%), low EMI, and good PSRR thus high-quality sound reproduction. The 32 steps DC volume control has a +32dB to -75dB range. The PAM8610 runs off of a 7V to 15V supply at much higher efficiency than competitors ICs. The PAM8610 only requires very few external components, significantly saving cost and board space. The PAM8610 is available in a 40pin QFN 6mm*6mm package. Features 10W 10%THD/Channel Output into a 8 Load at 13V Low Noise: -90dB Over 90% Efficiency 32 Step DC Volume Control from -75dB to +32dB Applications With Shutdown/Mute/Fade Function Over Current , Thermal and Short-Circuit Protection Flat Monitor /LCD TVS Low THD+N Multi-Media Speaker System Low Quiescent Current DVD Players, Game Machines Pop Noise Suppression Boom Box Small Package Outlines: Thin 40-pin QFN 6mm*6mm Package Music Instruments Pb-Free Package (RoHS Complaint) Typical Applications Circuit 1 of 15 September 2020 PAM8610 Diodes Incorporated www.diodes.com Document number: DS36447 Rev. 2 - 3 PAM8610 Pin Descriptions Pin Number Pin Name Function 1 RINN Negative differential audio input for right channel. 2 RINP Positive differential audio input for right channel. 3 AVDD 5V Analog VDD 4 VREF Analog reference for gain control section. 5 VOLUME DC voltage that sets the gain of the amplifier. Ground for gain control circuitry. Connect to AGND. If using a DAC to control the 6 REF GND volume, connect the DAC ground to this terminal. 7 AGND1 Analog GND Input for controlling volume ramp rate when cycling SD or during power-up. A 8 FADE logic low on this pin places the amplifier in fade mode. A logic high on this pin allows a quick transition to the desired volume setting. 9 LINP Positive differential audio input for left channel. 10 LINN Negative differential audio input for left channel. 11, 20 PGNDL Power ground for left channel H-bridge. 12, 19 PVCCL Power supply for left channel H-bridge, not connected to PVCCR or AVCC. 13, 14 LOUTN Class-D 1/2-H-bridge negative output for left channel. 15 BSLN Bootstrap I/O for left channel, negative high-side FET. 16 BSLP Bootstrap I/O for left channel, positive high-side FET. 17, 18 LO UTP Class-D 1/2-H-bridge positive output for left channel. 21 VCLAMPL Internally generated voltage supply for left channel bootstrap capacitors. I/O for charge/discharging currents onto capacitor for ramp generator triangle 22 CO SC wave biased at V2P5. 23 RO SC Current setting resistor for ramp generator. Nominally equal to 1/8*VCC. 24, 28 AGND Analog GND 25 MUTE A logic high on this pin disables the outputs and a logic low enables the outputs. 26 AVCC High-voltage analog power supply (7V to 15V) 2.5V Reference for analog cells, as well as reference for unused audio input 27 V2P5 when using single-ended inputs. Shutdown signal for IC (low = shutdown, high = operational). TTL logic levels with 29 SD compliance to VCC. 30 VCLAMPR Internally generated voltage supply for right channel bootstrap capacitors. 31, 40 PGNDR Power ground for right channel H-bridge. 32, 39 PVCCR Power supply for right channel H-bridge, not connected to PVCCL or AVCC. 33, 34 ROUTP Class-D 1/2-H-bridge positive output for right channel. 35 BSRP Bootstrap I/O for right channel, positive high-side FET. 36 BSRN Bootstrap I/O for right channel, negative high-side FET. 37, 38 ROUTN Class-D 1/2-H-bridge negative output for right channel. 2 of 15 September 2020 PAM8610 Diodes Incorporated www.diodes.com Document number: DS36447 Rev. 2 - 3