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内置4ch DAC和ASRC的32bit音频DSP_BU9408KS2

适用于超薄电视的音频信号处理用途的数字音频声音处理器。数字信号处理器部分采用罗姆原创的电视用音频信号处理专用DSP,性价比优异。数字输入可从4系统输入双系统,并内置单系统的非同步取样率转换器,及3系统的数字输出和双系统的音频DA转换器。

* 本产品是标准级的产品。本产品不建议使用的车载设备。
型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BU9408KS2 供应中 SQFP-T52 1000 1000 Tray Yes
 
特性:
Vcc(Min.)[V] 3.0
Vcc(Max.)[V] 3.6
Iq[mA] 40.0
I/F 2 wire port
Digital Audio I/F I2S SPDIF
Additional Feature P²Volume, P²Bass, P²Treble, 7band P-EQ, 3band Tone, Surround
Number of DACs 4
Sampling Rate(Max.)[kHz] 48
DAC SNR(Typ.)[dB] 96
DAC THD+N[%] 0.0050
Multi Input Stereo 3
Volume Range +24to-103 dB
Volume Step 0.5
Tone Control Band BASS, Middle, Treble
Operating Temperature (Min.)[°C] -25
Operating Temperature (Max.)[°C] 85
特点:
  • ・ Digital Signal Processor unit Word length: 32bit (Data RAM) The fastest machine cycle: 40.7ns (512fs, fs = 48kHz) Multiplier: 32 x 24 → 56bit Adder: 32 + 32 → 32bit Data RAM: 256 x 32bit Coefficient RAM: 128 x 24bit Sampling frequency: fs = 48kHz Master clock : 512fs(24.576MHz,fs=48kHz)
    ・ Digital signal input (Stereo4lines): 16/20/24bit (I2S, Left-Justified, Right-Justified) Digital signal output (Stereo 3 lines): 16/20/24bit (I2S, Left-Justified, Right-Justified, S/PDIF)
    ・ .Asynchronous sampling rate converter (one line at stereo):32kHz/44.1kHz/48kHz/88.2kHz/96kHz/176.4kHz/192kHz → 48kHz
    ・ Audio DAC:One stereo output 24bit 8 x Over-sampling digital filter + 1 bit delta sigma DAC S/N: 96dB THD+N: 0.005%(Sine-wave 1kHz,0dB)
    ・ Audio 16bit DAC:One stereo output 24bit 8 x Over-sampling digital filter + Audio 16bit DAC S/N: 90dB THD+N: 0.03%(Sine-wave 1kHz,0dB)
    ・ The sound signal processing function for FPD TVs Pre-Scaler, DC cut HPF, Channel Mixer, P2Volume(Perfect Pure Volume), BASS, MIDDLE, TREBLE, Simulated-Stereo, Surround, P2Bass, P2Treble, 7Band Parametric EQ, Master Volume, L/R balance, Post-Scaler, Output signal clipper (P2Volume, P2Bass, and P2Treble are the sound effect functions of ROHM original.)
 
 
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技术信息
Application Note

Thermal Resistance