Ultra-Low Power Audio CODEC

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. Both the TDTSI010 and TDTSI017 Evaluation Boards as well as the Reference Design Files are available directly from sales@temposemi.com.

Professional Quality, 32-bit ADCs & DACs

The TSCS25xx premium 32-bit audio Codec is employed by some of the most discerning customers in audio today in a variety of products.

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

InterfacesDAC Mono Channels (#)ADC Mono Channels (#)Analog Supply Voltage (V)Prog. ClockClock SupportHeadphone Stereo Amplifier, ClassSpkr. Amp TypeAnalog Mic Support, Digital Mic SupportLow Power ModeAdvanced Features
1 x I2C Compatible Serial Control Interface;
2 x I2S / LJ / RJ (1 Input, 1 Output);
1 x Bluetooth™ Digital Audio Input
221.8Yes XTAL /CLK In, ACLK1 Capless, Class ABNone2, NoneYes12-Band Stereo PEQ, Wideband DRC, Pro-style Multiband Compressor / Limiter / Expander, 3D Stereo Enhancement, Psychoacoustic Bass Enhancement, Compressed Audio High-Frequency Restoration



TitleTypeFormatFile SizePost DateFile Date / Version
 TSCS25xx Reference SchematicReference SchematicPDF66kB09-16-1609-16-16, Rev A
TSCS25xx Product BriefProduct BriefPDF159.95kB06-18-1806-18-2018, v1.6
TSCS25xx Data SheetData SheetPDF1.6MB05-13-2305-13-23, v1.7
 AN02: Configuring Audio Processing Algorithms using the Audio System Configurator (ASC) ToolApp NotePDF1.5MB06-07-1706-07-2017, v1.0


Software Support

TitleTypeFormatFile SizePost DateFile Date / Version
Tempo ASC Tuning ToolWindows-based GUI ApplicationEXE (Zipped)851kB11-20-1711-20-17 / ASC_0629
Tempo ASC Release NotesWindows-based GUI App Release NotesText16kB05-11-1705-08-17
Linux DriversSource CodeC, HSee GitHubSee GitHubSee GitHub. Note: Mainlined into 4.16


Samples & Purchasing

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

For additional prototypes or pre-production level quantities, the TSCS25xx CODEC (in either T&R or Tray) is available from Mouser.com