High-Fidelity Audio for the Masses
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32-bit CODEC + Headphone Amp + Analog Mic Input

The TSCS25xx is a low-power, high-fidelity integrated CODEC with 32-bit stereo playback / stereo record functionality with integrated stereo true capless headphone amplifiers. The two digital audio data interfaces (I2S / LJ / RJ) supports both master or slave modes for delivery of Linear PCM, without the need for an MCLK. Bluetooth PCM data format is also supported.

For high-fidelity for audio accessories, the device offers an enriched “audio presence” through the built-in audio output processor (AOP) DSP engine. The AOP supports up to 12 Bands of Stereo Parametric EQ, Psychoacoustic Bass Enhancement, High-Frequency Restoration for compressed audio content, a 3D Stereo Enhancement, Wideband DRC, a “pro-style” Multiband Compressor/Limiter/Expander all of which enable the OEM/ODM to clearly differentiate their product.


An integral part of complete, turn-key reference designs with supporting demo boards

The TSCS25xx CODEC is featured in both of our TDTSI010 and TDTSI017 Headphone / HeadsetFemale 3.5mm Adapter comprehensive, turn-key reference designs & demo boards.

Samples & Purchasing

Please contact sales@temposemi.com if you are interested in obtaining up to 10 samples of the TSCS25xx CODEC free of charge.

Prototype / Pre-Production level quantities of the TSCS25xx CODEC (in either T&R or Tray) from Mouser.com


TSC25xx CODEC Features

  • Incredible 124dB SNR
  • High-fidelity 32-bit stereo CODEC
  • 24-bands of fully configurable Parametric EQ (Peaking Filters)
    • Implemented as configurable BiQuads
    • Alternative filter types available: HPF, LPF, BPF, APF
  • Multiband Compressor / Limiter / Expander
  • Wideband DRC
  • 3D Stereo Enhancement
  • Psychoacoustic Bass Enhancement
  • High-frequency restoration for compressed audio content
  • Headphone Jack detection
  • Integrated, ground-referenced, capless headphone driver
    • Up to 35mW into 16 Ohms, < 1% THD+N
  • Two flexible I2S / LJ / RJ digital audio interfaces
  • Bluetooth PCM input compatibility
  • Three single-ended  analog microphone / line-in interfaces with supplied mic bias
  • Differential analog microphone / line-in interface with supplied mic bias
  • Ultra-low power consumption with integrated power management
  • 2-wire (I2C compatible) control interface
  • 40-pin, 5x5mm, QFN package

Product Specification

Interfaces DAC Mono Channels (#) ADC Mono Channels (#) Analog Supply Voltage (V) Prog. Clock Clock Support Headphone Amps Spkr. Amp Type Analog Mic Support, Digital Mic Support Low Power Mode Advanced Features
1 x I2C

2 x I2S / LJ / RJ

2 2 1.8 Yes  XTAL /CLK In, ACLK 1 Capless Stereo Class-DDX 2, None Yes 12-Band Stereo PEQ, Wideband DRC Pro-style Multiband Compressor / Limiter / Expander, 3D Stereo Enhancement, Psychoacoustic Bass Enhancement, Compressed Audio High-Frequency Restoration


Title Type Format File Size Post Date File Date / Version
 TSCS25xx Reference Schematic Reference Schematic PDF 66kB 09-16-16 09-16-16, Rev A
TSCS25xx Product Brief Product Brief PDF 144.65kB 12-14-17 12-14-2017, v1.1
TSCS25xx Data Sheet Data Sheet PDF 667.55kB 3-27-18 3-26-18, v1.4
 AN02: Configuring Audio Processing Algorithms using the Audio System Configurator (ASC) Tool App Note PDF 1.5MB 06-07-17 06-07-2017, v1.0

Software Support


Title Type Format File Size Post Date File Date / Version
Tempo ASC Tuning Tool Windows-based GUI Application EXE (Zipped) 851kB 05-11-17 05-08-17 / ASC_0509
Tempo ASC Release Notes Windows-based GUI App Release Notes Text 16kB 05-11-17 05-08-17
Linux Drivers Source Code C N/A 05-11-17 See GitHub