Description

The PAMS5803 is a fully integrated, high-efficiency, stereo Class-D audio amplifier with digital inputs. The application circuit requires few passives components to operate with 4.5V to 17V PVDD supply, 3.3V or 1.8V DVDD supply. It can drive 2×24W output power into BTL 4Ω and 1×40W into PBTL 2Ω@1% THD+N.

The PAMS5803 features one novel PWM modulation architecture, which adjusts PWM common duty cycle during start-up phase to avoid startup pop click.

Spread spectrum technology provides lower EMI noise. It allows inductor free application with specified output power situation with the PAMS5803.

The advanced audio effect tuning capability inside the PAMS5803 provides one highly integrated solution. It allows turning on/off each block with highly free operations. Both BQs and volume helps a lot to maintain audio headroom.

The PAMS5803 is packaged in TSSOP-28EP (Type TH-1).

Feature(s)

Flexible Power Supply Configurations
- PVDD: 4.5V to 17V
- DVDD and I/O: 3.3V or 1.8V
Various Output Configurations
- 2×14W, Stereo Mode (4Ω, 12V, THD+N = 1%)
- 2×24W, Stereo Mode (4Ω, 16V, THD+N = 1%)
Excellent Audio Performance
- THD+N ≤ 0.02% at 1W, 1kHz, PVDD = 12V
- 107 dB A-Weighted Signal-to-Noise Ratio (SNR)
- Idle Switching A-Weighted Noise 35μVRMS
- 17mA Low Quiescent Current
- 90% Efficiency into 6Ω Load at 12V
Configurable Digital Audio Interface
- I2C Control with Up to 4 Selectable Addresses
- I2S, Left-Justified, Right-Justified, TDM Audio Format
- 3-Wire Digital Audio Interface without MCLK Required
- 32kHz, 44.1kHz/48kHz Input Sample Rate
- SDOUT for Acoustic Echo Cancellation – AEC or 1.1/2.1 System Sub-Channel Signal Routing
Advanced Audio Effect Tuning
- Flexible Digital and Analog Gain Adjustment
- High Pass Filter for DC Blocking
- Input Signal Router for Left and Right Channel
- 2×10 BQs to Support Enhanced Audio Frequency Tuning
- Dynamic Range Boost (DRB)
- Full-Band AGL to Limit Output Power
Analog Protections
- FAULT Status Report through GPIO and I2C Registers
- Overcurrent and Direct Current Protection
- Overtemperature Protection
- Undervoltage and Overvoltage Protection
- Clock Error Protection
TSSOP-28EP (Type TH-1) Package
Lead-Free Finish; 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/

Application(s)

Portable speakers: bluetooth, smart speakers with voice assistant
Home audios: TV, sound-bar, STB (set top box), HTiB (home theatre in a box)
PCs and laptops

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Standard
AEC Qualified	No
Input Type	Digital In
Category	Speaker Amplifier
Minimum V_DD (V)	4.5
Maximum V_DD (V)	17 V
Mono or Stereo	Stereo & Mono
Architecture	Class D
I_{Q (mA)}	17 mA
Minimum Load (Ω)	2
Control Interface	I2C
Power/CH (W) @ THD=10%	30
Power/CH (W) @ THD=1%	24
Headphone Out	No
Efficiency (%)	90 %
SNR	107 dB
Special Features	Digital interface with EQ, DRC, AGL, SSM, Class H

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products

PAMS5803