PAMS5827

Description

The PAMS5827 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 26.4V PVDD supply, 3.3V or 1.8V DVDD supply. It can drive 2×41W output power into BTL 6Ω and 1×82W into PBTL 3Ω@1% THD+N.

The PAMS5827 features one novel PWM modulation architecture, which adjusts PWM common duty cycle during startup phase to avoid startup pop click.

Spread spectrum technology provides lower EMI noise. It allows inductor-free application with specified output power situation with PAMS5827.

The advanced audio effect tuning capability inside PAMS5827 provides one highly integrated solution. It allows tuning on/off each block with highly free operations. Both pre and post BQs/volume help a lot to maintain audio headroom. Furthermore, newly designed DRC with time-delay buffer and post compensation BQs is available to implement flexible and flat multiple band control.

The PAMS5827 is packaged in the TSSOP-28EP (Type TH-1).

Feature(s)

• Flexible Power-Supply Configurations
  • PVDD: 4.5V to 26.4V
  • DVDD and I/O: 3.3V or 1.8V
• Various Output Configurations
  • 2×41W, Stereo Mode (6Ω, 24V, THD+N = 1%)
  • 2×33W, Stereo Mode (4Ω, 18V, THD+N = 1%)
  • 1×82W, Stereo Mode (3Ω, 24V, THD+N = 1%)
• Excellent Audio Performance
  • THD+N ≤ 0.03% at 1W, 1kHz, PVDD = 12V
  • 114dB A-Weighted Signal-to-Noise Ratio (SNR)
  • Idle Switching A-Weighted Noise ≤ 37µV_RMS
  • 28mA Low Quiescent Current
  • 91.7% Efficiency into 6Ω Load, PVDD = 20V, 2×28W
• 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, 88.2kHz/96kHz, 176.4kHz/192kHz 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
  • Highpass Filter for DC Blocking
  • Input Signal Router for Left and Right Channel
  • 2×11 Pre BQs & 2×2 Post BQs to Support Enhanced Audio Frequency Tuning
  • Pre Volume & Post Volume for Dynamic Headroom and Loudness Control
  • Innovative, Patented, Industry-Leading Dynamic Range Control
  • (DRC) with Time-Delay Buffer & Post Compensation BQs for Flexible and Flat Multiple Band Control
  • Virtual Bass Enhancement
  • 3D Surround Sound Effect
  • Dynamic Range Boost
• 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
• 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/

Application(s)

• Portable speakers: Bluetooth, smart speakers with voice assistant
• Home audio: TV, soundbar, STB (set top box), HTiB (home theatre in a box)
• PCs and laptops