This LSI is the digital sound processor which made the use digital signal processing for FPD TVs.DSP of ROHM original is used for the TV sound processor unit, and it excels in cost performance.There are two digital input systems. An output is a digital output corresponding to 2.1ch.

型号Status封装包装数量最小独立包装数量包装形态RoHS数据手册
BU9414FV-E2ActiveSSOP-B4020002000TapingYesBU9414FV
技术特性
Vcc(Min.)[V]3.0
Vcc(Max.)[V]3.6
Iq[mA]15.0
I/F2 wire port
Digital Audio I/FI2S SPDIF
Additional FeatureP2Volume, P2Bass, P2Bass+, P2Treble, 7band P-EQ, 3band Tone, Surround, 2band DRC
Sampling Rate(Max.)[kHz]48
Multi InputStereo 2
Volume Range+24to-103 dB
Volume Step0.5
Tone Control BandBASS, Middle, Treble
Operating Temperature (Min.)[°C]-25
Operating Temperature (Max.)[°C]85
应用领域
  • TV
技术支持资料下载
产品特点
  • 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 (It is a slave to 256fs of fs = 48kHz, 44.1 kHz, and 32 kHz)
  • Digital signal input (Stereo 2 lines): 16/20/24bit(I2S, Left-Justified, Right-Justified) Digital signal output (Stereo 2 lines): 16/20/24bit(I2S, Left-Justified, Right-Justified, S/PDIF)
  • The sound signal processing function for FPD TVs Pre-Scaler, DC cut HPF, Channel Mixer, P2Volume(Perfect Pure Volume), BASS, MIDDLE, TREBLE, Pseudo BASS, 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.)
BU9414FV BU9414FV
BD34602FS-M BD34602FS-M
BD8878FV BD8878FV
BU94502CMUV BU94502CMUV
BD34704KS2 BD34704KS2
Application Note BA12004BF
Package Information BD9536FV
Package Information BU4584BFV
Part Explanation BA12004BF