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Diodes Semiconductor Electronic Components Datasheet

PAM8019 Datasheet

3W STEREO CLASS-D AUDIO AMPLIFIER AND CLASS AB HEADPHONE DRIVER

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PAM8019
3W STEREO CLASS-D AUDIO AMPLIFIER AND CLASS AB HEADPHONE DRIVER
WITH DC VOLUME CONTROL, NON-CLIP POWER LIMIT AND UVP
Description
The PAM8019 is a Stereo 3W Class D audio power amplifier for
driving bridged-tied speakers and includes a Stereo Class AB amplifier
for driving headphones. The advanced 64 step DC volume control
minimizes external components allowing simple and accurate volume
control over the gain range of +20dB (Volume=0V) to -60dB
(Volume=5V).
Integrated non-clip power limit technology suppresses output
automatically with programmable power limit, improving the sound
quality and helping to protect the speakers. Programmable under
voltage protection (UVP) can be used to shut down the PAM8019 at a
pre-determined voltage level helping to eliminate speaker pop by
shutting down before the power supply collapses.
The PAM8019 is available in the power efficient and space saving
U-QFN4040-20.
Pin Assignments
Top View
ROUTN
HPROUT
SD
Bypass
1
RIN
GND
LOUTN
HPLOUT
VDD
UVP
PL
Features
3W Stereo Class D Amplifier with Class AB Headphone Amplifier
Filter Free and Low EMI Architecture
Operating Voltage: 2.8V to 5.5V
Low Quiescent Current of 7mA at a VDD of 5V
64 Step DC Volume Control with Hysteresis from -60dB to +20dB
Output Power
- Class D Amplifier THD+N=1%
VDD=5V,Load =4Ω; Po=2.4W / Load =8Ω; Po=1.4W
- Class D Amplifier THD+N=10%
VDD=5V, Load =4Ω; Po=3.0W / Load =8Ω; Po=1.7W
- Class AB Headphone Amplifier
VDD=5V, Load=32Ω; Po=60mW
Speaker or Headphone Select
Non Clip Power Limit (NCPL) Function
OVP and Programmable UVP Protection
Thermal and Over-Current Protection with Auto-Recovery
Power Enhance Package U-QFN4040-20
Lead Free and Green Devices Available (RoHS Compliant)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green Device (Note 3)
Applications
LCD Monitors and TVs
Projectors / All-In-One Computers
Portable / Active Speakers
Portable DVD Players / Game Machines
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-
free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total
Br + Cl) and <1000ppm antimony compounds.
PAM8019
Document number: DS38822 Rev. 1 - 2
1 of 12
www.diodes.com
May 2016
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

PAM8019 Datasheet

3W STEREO CLASS-D AUDIO AMPLIFIER AND CLASS AB HEADPHONE DRIVER

No Preview Available !

Typical Applications Circuit
PAM8019
Left Channel
Input Signal
SD
Mute
LIN 7
Ci1
1mF
3
VDD 9
R7
R8
R6
50kΩ
PL 11
C1 1mF
Bypass
4
CB
2.2mF
Volume 8
Right Channel
Input Signal
RIN 5
Ci2
VDD 1mF
HP/SPK
R4
100kΩ
R5
10
VDD
VDD
13
CS4
0.1mF
Volume
Control
Shut Down
Mute
Gate
- Driver
+
PWM Modulator
Gate
Driver
Over Temp.
Protection
CS2
16 0.1mF
VDD
17
LOUTP
15 LOUTN
Power
Limit
Short Crt.
Protect
Bypass
Volume
Control
Volume
Control
Bias and
Vref
PWM Modulator
-
Gate
Driver
+
Controller
Gate
Driver
CS3
0.1mF
20
VDD
19 ROUTP
1 ROUTN
HP/Spk
Controller
14 2
C2
220mF
C3
220mF
HPLOUT HPROUT
UVLO
12
R3
R2
OSC.
R1
VDD
6, 18
GND
VDD
CS1
0.1mF
Speaker 4
Speaker 4
PAM8019
Document number: DS38822 Rev. 1 - 2
2 of 12
www.diodes.com
May 2016
© Diodes Incorporated


Part Number PAM8019
Description 3W STEREO CLASS-D AUDIO AMPLIFIER AND CLASS AB HEADPHONE DRIVER
Maker Diodes
Total Page 12 Pages
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