Datasheet PAM8965 (Diodes) - 2
| 制造商 | Diodes |
| 描述 | 12W STEREO CLASS-D AUDIO AMPLIFIER WITH SYNCHRONOUS BOOST, SSM AND EXTERNAL AUDIO FEEDBACK |
| 页数 / 页 | 25 / 2 — PAM8965. Typical Applications Circuit. Pin Descriptions. Pin Number Pin … |
| 文件格式/大小 | PDF / 1.8 Mb |
| 文件语言 | 英语 |
PAM8965. Typical Applications Circuit. Pin Descriptions. Pin Number Pin Name I/O/P. Description. www.diodes.com
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PAM8965 Typical Applications Circuit
2.8V to 8.5V + + V V S B P B B W S V A A T D T1 T2 D FLT ON RFBP OFF EN RBSTP ROUTP RINP ROUTN Right Input RINN RBSTN
PAM8965
RFBN LINP Left Input LINN LFBP ON LBSTP OFF SSM LOUTP PLIM PLIM LOUTN GAIN GAIN LBSTN VDD VDD LFBN GND PGND
Pin Descriptions Pin Number Pin Name I/O/P Description
1 FLT O Fault flag. Open-drain output to signal system faults (VBAT UVLO or OVLO, OTP, DC input, audio SCP) 2 EN I Chip enable. High = ON, Low = OFF. Do not float this pin. 3 RINP I Right channel audio input – Positive 4 RINN I Right channel audio input – Negative 5 LINN I Left channel audio input – Negative 6 LINP I Left channel audio input – Positive 7 SSM I Spread spectrum modulation. High = ON, Low = OFF. Do not float this pin. 8 VDD O Internal 5V LDO 9, 10 GND — Analog signal ground 11 PLIM I Non-clip power limit setting. PLIM = VDD disables power limit. Do not float this pin. 12, 20 PGND — Power ground for left channel 13 LFBP I Left channel feedback – Positive. Short to LOUTP. Kelvin connect to speaker for higher performance. 14 LOUTP O Left channel audio output – Positive 15 LBSTP P Left channel boot-strap supply for high-side – Positive 16 LPVDD P Left channel power supply for Class-D H-bridge 17 LBSTN P Left channel boot-strap supply for high-side – Negative 18 LOUTN O Left channel audio output – Negative 19 LFBN I Left channel feedback – Negative. Short to LOUTN. Kelvin connect to speaker for higher performance. Audio channel gain setting. Do not float this pin. 4.5V or above = 26dB (maximum gain setting). 21 GAIN I Then every 100mV is 0.5dB step, e.g., 4.4V = 25.5dB, 4.3V = 25dB, etc. 0.5V or below = 6dB (minimum gain setting) 22, 23 PGND — Power ground for boost converter 24, 25 SW O Boost converter’s switching node 26 BST P Boost converter’s boot-strap supply 27, 28 PVDD O Boost converter’s output. Connect this to pin 16 and pin 35. 29 VBAT2 P Battery supply input for boost converter. See Application Information for decoupling requirement. 30 VBAT1 P Battery supply input for system. See Application Information for decoupling requirement. 31, 39 PGND — Power ground for right channel 32 RFBN I Right channel feedback – Negative. Short to ROUTN. Kelvin connect to speaker for higher performance. 33 ROUTN O Right channel audio output – Negative 34 RBSTN P Right channel boot-strap supply for high-side – Negative 35 RPVDD P Right channel power supply for Class-D H-bridge 36 RBSTP P Right channel boot-strap supply for high-side – Positive 37 ROUTP O Right channel audio output – Positive 38 RFBP I Right channel feedback – Positive. Short to ROUTP. Kelvin connect to speaker for higher performance. 40 GND — Connect to system ground PAM8965 2 of 25 May 2021 Document number: DS42707 Rev. 2 - 2
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2.8V to 8.5V + + V V S B P B B W S V A A T D T1 T2 D FLT ON RFBP OFF EN RBSTP ROUTP RINP ROUTN Right Input RINN RBSTN
PAM8965
RFBN LINP Left Input LINN LFBP ON LBSTP OFF SSM LOUTP PLIM PLIM LOUTN GAIN GAIN LBSTN VDD VDD LFBN GND PGND
Pin Descriptions Pin Number Pin Name I/O/P Description
1 FLT O Fault flag. Open-drain output to signal system faults (VBAT UVLO or OVLO, OTP, DC input, audio SCP) 2 EN I Chip enable. High = ON, Low = OFF. Do not float this pin. 3 RINP I Right channel audio input – Positive 4 RINN I Right channel audio input – Negative 5 LINN I Left channel audio input – Negative 6 LINP I Left channel audio input – Positive 7 SSM I Spread spectrum modulation. High = ON, Low = OFF. Do not float this pin. 8 VDD O Internal 5V LDO 9, 10 GND — Analog signal ground 11 PLIM I Non-clip power limit setting. PLIM = VDD disables power limit. Do not float this pin. 12, 20 PGND — Power ground for left channel 13 LFBP I Left channel feedback – Positive. Short to LOUTP. Kelvin connect to speaker for higher performance. 14 LOUTP O Left channel audio output – Positive 15 LBSTP P Left channel boot-strap supply for high-side – Positive 16 LPVDD P Left channel power supply for Class-D H-bridge 17 LBSTN P Left channel boot-strap supply for high-side – Negative 18 LOUTN O Left channel audio output – Negative 19 LFBN I Left channel feedback – Negative. Short to LOUTN. Kelvin connect to speaker for higher performance. Audio channel gain setting. Do not float this pin. 4.5V or above = 26dB (maximum gain setting). 21 GAIN I Then every 100mV is 0.5dB step, e.g., 4.4V = 25.5dB, 4.3V = 25dB, etc. 0.5V or below = 6dB (minimum gain setting) 22, 23 PGND — Power ground for boost converter 24, 25 SW O Boost converter’s switching node 26 BST P Boost converter’s boot-strap supply 27, 28 PVDD O Boost converter’s output. Connect this to pin 16 and pin 35. 29 VBAT2 P Battery supply input for boost converter. See Application Information for decoupling requirement. 30 VBAT1 P Battery supply input for system. See Application Information for decoupling requirement. 31, 39 PGND — Power ground for right channel 32 RFBN I Right channel feedback – Negative. Short to ROUTN. Kelvin connect to speaker for higher performance. 33 ROUTN O Right channel audio output – Negative 34 RBSTN P Right channel boot-strap supply for high-side – Negative 35 RPVDD P Right channel power supply for Class-D H-bridge 36 RBSTP P Right channel boot-strap supply for high-side – Positive 37 ROUTP O Right channel audio output – Positive 38 RFBP I Right channel feedback – Positive. Short to ROUTP. Kelvin connect to speaker for higher performance. 40 GND — Connect to system ground PAM8965 2 of 25 May 2021 Document number: DS42707 Rev. 2 - 2
www.diodes.com
© Diodes Incorporated