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.
● 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)
