Description
The PAM8019E is a stereo 4W Class-D audio-power amplifier for
driving bridged-tied speakers and includes a stereo Class-AB
amplifier for driving headphones. With advanced 62 step DC volume
control to minimize external components, PAM8019E is capable of
allowing simple and accurate volume control over the gain range of
+20dB (Volume = 0V) to -60dB (Volume = VDD).
Integrated with spread spectrum modulation (SSM) design for EMI
suppression, the PAM8019E enables the use of inexpensive ferrite
bead filters. The integrated non-clip power limit (PLIM) technology
suppresses output automatically with programmable power limit, while
improving the sound quality and helping to protect the speakers.
The PAM8019E supports speakers open short detection during
startup to protect the whole audio system before normal operation
starts. Protection features also include undervoltage protection, DC
input protection, short-circuit protection on all audio outputs, and
thermal shutdown of the entire system.
The PAM8019E is designed to be pop free for the Class-D amplifier
and headphone driver under all kinds of operating conditions.
The PAM8019E is available in the power-efficient and space-saving
U-QFN4040-20 and U-QFN3030-20 packages

Features
• Operating Voltage: 2.5V to 6.0V
• 4W Stereo Class D with 88mW Class-AB Headphone Driver
• Output Power
- Class-D Amplifier THD+N = 10%
VDD = 5V: RL = 4Ω, PO = 3W; RL = 8Ω, PO = 1.78W
VDD = 5.8V: RL = 4Ω, PO = 4W; RL = 8Ω, PO = 2.34W
- Class-D Amplifier THD+N = 1%
VDD = 5V: RL = 4Ω, PO = 2.41W; RL = 8Ω, PO = 1.44W
VDD = 5.8V: RL = 4Ω, PO = 3.27W; RL = 8Ω, PO = 1.92W
- Class-AB Headphone Amplifier THD+N = 1%
VDD = 5V, RL = 32Ω, PO = 66mW
VDD = 5.8V, RL = 32Ω, PO = 88mW
• 40µVrms Noise of Class-D Amplifier at the max Gain
• 90% Efficiency at VDD = 5V, PO = 3W x 2ch, 4Ω Loading
• 62 Step DC Volume Control with Hysteresis from -60dB to
+20dB
• Non-Clip Power Limit (NCPL) and AGC Function
• Speaker Open Short Detection During Startup
• SSM Help Easily Pass EMI with Simple FB-C
• Thermal and Overcurrent Protection with Auto-Recovery
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change
control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP
capable, and manufactured in IATF 16949 certified facilities),
please contact us or your local Diodes representative.
https://www.diodes.com/quality/product-definitions/

Applications
• LCD monitors and TVs
• Projectors/all-in-one computers
• Portable/active speakers
• Bone conductive headphones
• DVD players