Author Topic: ATS-2825  (Read 386 times)


« on: June 13, 2020, 02:31:37 PM »
Looks like the NUX guys are using this chip.  Pretty interesting set of features for one low powered chip.

    104MHz MIPS32 M4K processor Core
    180MHz Gogir DSP core
    Built-in 279.5K RAM for data and program storage
    Support SD/MMC/eMMC card interface and SPI NorFlash interface
    Support 26MHz OSC with on-chip PLL
    Energy saving with dynamic power management, supporting Li-on only
    USB 2.0 device and host controllers with HOST support
    A variety of serial controllers supporting I2S, SPDIF TX, SPI, UART, PCM
    Support Remote Control with the internal IRC for decoding
    Support 4COM/5COM/6COM Segment LCD, 7pin LED
    4 LED drivers with PWM flasher independent of MCU
    Build in stereo 24bit input sigma-delta DAC, SNR>95dB, SNR (A-WEIGHTING)>98dB,THD<-85dB
    DAC supports sample rate 8k/12k/11.025k/16k/22.05k/24k/32k/44.1/48kHz
    Build in stereo 20mW PA (Power Amplifier) for headphone. PA output supports traditional mode and direct drive mode(for earphone)
    Support differential audio output for speaker PA
    Build in stereo 24bit input sigma-delta ADC, SNR>90dB, SNR(A-WEIGHTING)>93dB,THD<-82dB. With multi-bit quantization option,SNR>93dB,SNR(A-WEIGHTING)>96dB
    ADC supports sample rate 8k/12k/11.025k/16k/22.05k/24k/32k/44.1/48kHz
    Supports stereo single-ended input analog microphones or mono full difference input microphone
    Supports Digital microphones and Analog microphones
Bluetooth Controller       Support Bluetooth V5.0
    Compatible with Bluetooth V2.1 and V3.0 systems
    Supports Bluetooth 4.0 Low Energy(BLE)
    Supports all packet types in basic rate and enhanced data rate
    Supports SCO/Esco link
    Supports 4 piconets in a scatternet
    Supports Secure Simple Pairing
    Supports Low Power Mode (Sniff/Sniff Sub-rating/Hold/Park)
    Bluetooth 5.0 Dual Mode support: Simultaneous LE and BR/EDR
    Supports multiple Low Energy states
    Fast AGC control to improve receiving dynamic range
    Supports AFH to dynamically detect channel quality to improve transmission quality
    Integrated internal Class1, Class2, and Class 3 PA
    Supports Power Control/Enhanced Power Control
    Integrated 32K oscillator for power managementC
    Operating voltage: I/O 3.1V, Core 1.2V
Power       Supports Li-Ion battery and 5V power supply
    Integrate Linear battery charger
    Integrated DC-DC buck converters, which can be switch to LDO mode
    Linear regulators output VCC, BTVCC, SVCC, RTCVDD from DC5V
    Linear regulators outputs AVCC from VCC, and VDD from VD15
    Capacitor-less LDO: UVDD,EFUSE25, AVDD, OSCVDD and BTVDD
    Internal bandgap generates VREF form SVCC
    Operating voltage: I/O 3.1V, Core 1.2V
Package       QFN-68 (8x8mm2)
Application       Stereo headsets and headphones
    Portable stereo speakers and speakerphones
    Bluetooth car audio unit
    Bluetooth smart LED

Digital Larry

Re: ATS-2825
« Reply #1 on: June 14, 2020, 12:01:25 PM »
Wish they had some info online about the instruction set, or tools, or a dev board, or something!
Digital Larry
DSP tinkerer and former transistor twister