TAS2505 Digital Input Class-D Speaker Amplifier with Audio Processing and mono headphone amplifier | TI.com

TAS2505 (ACTIVE)

Digital Input Class-D Speaker Amplifier with Audio Processing and mono headphone amplifier

Digital Input Class-D Speaker Amplifier with Audio Processing and mono headphone amplifier - TAS2505
 

Description

The TAS2505 device is a low power digital input speaker amp with support for 24-bit digital I2S data mono playback.

In addition to driving a speaker amp up to 4-Ω, the device also features a mono headphone driver and a programmable digital-signal processing block. The digital audio data format is programmable to work with popular audio standard protocols (I2S, left/right-justified) in master, slave, DSP and TDM modes. The programmable digital-signal processing block can support Bass boost, treble, or EQ functions. An on-chip PLL provides the high-speed clock needed by the digital signal-processing block. The volume level can be controlled by register control. The audio functions are controlled using the I2C™ serial bus or SPI bus. The device includes an on-board LDO that runs off the speaker power supply to handle all internal device analog and digital power needs. The included POR as power-on-reset circuit reliably resets the device into its default state so no external reset is required at normal usage; however, the device does have a reset pin for more complex system initialization needs. The device also includes two analog inputs for mixing and muxing in both speaker and headphone analog paths.

Features

  • Digital Input Mono Speaker Amp
  • Supports 8-kHz to 96-kHz Sample Rates
  • Mono Class-D BTL Speaker Driver (2 W into 4 Ω or 1.7 W into 8 Ω)
  • Mono Headphone Driver
  • Two Single-Ended Inputs With Output Mixing and Level Control
  • Embedded Power-On-Reset
  • Integrated LDO
  • Programmable Digital Audio Processing Blocks for Bass Boost, Treble, EQ With up to Six Biquads for Playback
  • Integrated PLL Used for Programmable Digital Audio Processing Blocks
  • I2S, Left-Justified, Right-Justified, DSP, and TDM Audio Interfaces
  • I2C Control and SPI control With Auto-Increment
  • Full Power-Down Control
  • Power Supplies:
    • Analog: 1.5 V to 1.95 V
    • Digital Core: 1.65 V to 1.95 V
    • Digital I/O: 1.1 V to 3.6 V
    • Class-D: 2.7 V to 5.5 V (SPKVDD ≥ AVDD)
  • 24-Pin VQFN Package (4 mm × 4 mm)

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Parametrics Compare all products in Speaker amps

 
Audio Input Type
Architecture
Speaker Channels (Max)
Power Stage Supply (Min) (V)
Power Stage Supply (Max) (V)
Output Power (W)
Load (Min) (ohms)
SNR (dB)
THD + N @ 1 kHz (%)
Iq (Typ) (mA)
Control Interface
Closed/Open Loop
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Sampling Rate (Max) (kHz)
PSRR (dB)
Operating Temperature Range (C)
Rating
TAS2505
Analog Input
Digital Input    
Class-D    
Mono    
1.5    
1.95    
2    
4    
94    
0.012    
0.002    
I2C
SPI    
Open    
1.5    
1.95    
96    
47.2    
-40 to 85    
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