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


Package | PIN: RGE | 24
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $1.43
10-24 $1.29
25-99 $1.20
100-249 $1.05
250-499 $0.99
500-749 $0.84
750-999 $0.71
1000+ $0.68


  • 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)

Texas Instruments  TAS2505IRGET

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.