PAM8009 Datasheet, PDF (1/12 Pages) Diodes Incorporated – 3W STEREO CLASS-D Audio Amplifier and Class AB Headphone Driver (DC VOLUME, UVP and AGC Function)

PAM8009
3W STEREO CLASS-D Audio Amplifier and Class AB
Headphone Driver (DC VOLUME, UVP and AGC Function)
Description
The PAM8009 is a 3W, Class D audio-power amplifier for driving
bridged-tied stereo speakers. Advanced DC volume control minimizes
external components and allows BTL (Speaker) volume control and
SE (Headphone) volume control, the gain range is from +20dB
(Volume=5V) to -60dB (Volume=0V) with 64 steps precise control.
Pin Assignments
Integrated power-limit technology suppresses the output signal
clip automatically due to the over level input signal. This technology
also offers low THD+N and protects speaker.
Integrated Undervoltage Protection (UVP) technology, external
undervoltage detection can be used to shut down the PAM8009 before
an input device can generate a pop.
PAM8009 is available in SO-24 and U-QFN4040-20.
Features
• Operating Voltage: 2.8v ~ 5.5v
• Filter – Free and Low EMI
• Low Quiescent Current
• IDD=7mA @ VDD= 5V
• 64 Steps DC Volume Control from -80dB to +20dB by DC Voltage
with Hysteresis
• Power Limit Function
Disable: 0.45VDD ~ VDD
Max. Power: GND
• UVP Function
Disable: Floating
• Output Power @ THD+N=1%
BTL Mode
VDD=5V, Rl=4Ω; Po=2.4W
VDD=5V, Rl=8Ω; Po=1.4W
SE Mode
VDD=5V, Rl=32Ω; Po=60mW
• Output Power @ THD+N = 10%
BTL Mode
VDD=5V, Rl=4Ω; Po=3.0W
VDD=5V, Rl=8Ω; Po=1.7W
• Input Signal and Headphone Output Signal in Phase
• Thermal and Over-Current Protections with Auto-Recovery
• Power Enhance Package SO-24 and 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)
ROUTN 1
HP_ROUT 2
SD 3
BYPASS 4
RINN 5
P8009
XXXYW
Applications
• LCD Monitor / Projects
• Projects / All-In-One Computers
• Portable Speakers
• Portable DVD Player / Game Machines
15 LOUTN
14 HP_LOUT
13 VDD
12 UVP
11 AGC
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.
PAM8009
Document number: DS37224 Rev. 1 - 2
1 of 12
www.diodes.com
January 2015
© Diodes Incorporated