NJU26040-16A Digital Signal Processor for 2ch Speaker System
– Software– 3D Surround (eala (New JRC Original),Stable center image and natural sound field) Stereo Enhancement (eala Stereo Expander (New JRC Original),Reproduce the amazing stereo image even narrow distance between two speakers) Equalizer (5band biquad filter,Band1, 2, 3 : HPF/Parametric Equalizer/is selectable.,Band4,5 : HPF/Parametric Equalizer/Bass/Treble is selectable.) Master Volume Dynamic Bass Boost (New JRC Original) (Two-independent-channel processing for high channel separation) AGC/Limiter Clock for Watch Dog Timer – Hardware– 24bit Fixed-point Digital Signal Processing Maximum System Clock Frequency (38MHz Max.) Digital Audio Interface (3 Input port / 2 Output ports) Digital Audio Format (I 2S 24bit, Left-justified, Right-justified, BCK : 32fs/64fs) Master / Slave Mode (Master Mode MCK : 1/2 fclk, 1/3 fclk ex. MCK = 384Fs(1/2) or MCK = 256Fs(1/3) at fclk=768Fs) Power Supply (3.3V) Input terminal (5V Input tolerant) Package Outline (SSOP32 (Pb-Free)) Micro computer interface (I 2C bus (standard-mode/100kbps, Fast-mode/400kbps),Serial interface (4 lines: clock, enable, input data, output data))
The NJU26040-16A is a high performance 24-bit digital signal processor.The NJU26040-16A provides 3D Surround function, Stereo Enhancement function,Equalizer function, Dynamic Bass Boost function, AGC/Limiter function. These kinds of sound functions are suitable for docking speaker, boom box, mini/micro-component, TV, and other speaker system.
The documents used to design audio DSP is here
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