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PAM8320 Datasheet

20W Mono Class D Audio Amplifier

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Description
The PAM8320 is an efficient 20W mono Class-D audio power
amplifier, designed to drive speakers as low as 4in a bridge-tied-
load configuration. Due to the low power dissipation and high
efficiency of up to 95%, the device can be used without any external
heat sink whilst playing music.
The PAM8320 features short circuit protection, thermal shutdown,
over voltage protection and under voltage lock-out.
The PAM8320 is available in a SO-16EP package.
A PRODUCT LINE OF
DIODES INCORPORATED
PAM8320
20W Mono Class D Audio Amplifier
Pin Assignments
PVCCN 1
SDN 2
IN 3
VCM 4
AGND 5
AGND 6
VCLAMP 7
PVCCP 8
SO-16EP
16 PGNDN
15 OUTN
14 BSN
13 AVCC
12 MUTE
11 BSP
10 OUTP
9 PGNDP
Features
Operates from 4.5V to 15V
20W into 4BTL Load from 12V Supply
Single-Ended Analog Input
No Pop Noise for Start-up and Shut-down Sequences
Internal Oscillator (No External Components Required)
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
Applications
PC Speaker
Blue Tooth Speaker
Home Sound Systems
Active Speakers
Docking stations
Typical Applications Circuit
PAM8320
Document number: DS36610 Rev. 1 - 2
1 of 11
www.diodes.com
October 2013
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

PAM8320 Datasheet

20W Mono Class D Audio Amplifier

No Preview Available !

Pin Descriptions
A PRODUCT LINE OF
DIODES INCORPORATED
PAM8320
Pin
Name
I/O/P
Description
1
PVCCN
P Power supply for negative H-bridge, not connected to PVCCP or AVCC
2
SDN
I
Shutdown signal for IC (low=shutdown, high=operational). TTL logic levels with compliance to
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
7
VCLAMP
P
Internally generated voltage supply for bootstrap. Not to be used as a supply or connected to
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
12 MUTE
I
A logic high on this pin disables the outputs. A low on this pin enables the outputs. TTL logic
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
PAM8320
Document number: DS36610 Rev. 1 - 2
2 of 11
www.diodes.com
October 2013
© Diodes Incorporated


Part Number PAM8320
Description 20W Mono Class D Audio Amplifier
Maker Diodes
Total Page 11 Pages
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