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AK4140VF PDF预览

AK4140VF

更新时间: 2024-11-03 04:31:59
品牌 Logo 应用领域
AKM 解码器
页数 文件大小 规格书
43页 694K
描述
Digital BTSC Decoder

AK4140VF 数据手册

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ASAHI KASEI  
[AK4140]  
AK4140  
Digital BTSC Decoder  
GENERAL DESCRIPTION  
The AK4140 is a BTSC decoder, which is optimized for Digital STB/TV application. The AK4140 achieves  
high audio performance using original demodulation techniques for 4.5MHz inter-carrier sound, and the  
digital BTSC decoding architecture using digital dbx-TV® technology licensed from THAT Corporation  
requires no alignment of external parts. The AK4140 supports major audio data formats (MSB justified,  
I2S, TDM) to interface with usual DSP. Therefore, the AK4140 is suitable for the systems such as Digital  
STB/TV, AV recorder etc.  
The dbx-TV® brand identifies a range of technology solutions for digital TV-audio decoding developed and  
licensed by THAT Corporation. The dbx-TV provides high performance solutions with high quality sound.  
FEATURES  
† Capable of receiving 4.5MHz intercarrier sound and FM demodulation  
† Alignment Free Digital BTSC decoding (Mono/Stereo/SAP)  
† Programmable pilot/SAP/noise detection threshold  
† Automatic return to mono dependant on pilot/noise level  
† Mono/Stereo/SAP selectable output  
† Digital volume control  
† Soft Mute function  
† Digital HPF for DC-Offset cancel  
† Sampling Rate (fs): 32k/44.1k/48kHz  
† Master Clock: 256fs/384fs/512fs/768fs  
† Audio Interface: Master or Slave Mode  
† Output format: 16bit MSB justified / I2S or TDM  
† S/(N+D): 0.13%  
† S/N:  
73dB  
† Power Supply: 2.7 ~ 3.6V  
† Ta: -20 ~ 85°C  
VDD  
VSS  
PDN  
MCLK  
FILT  
SIF  
Clock Divider  
TDMIN  
LRCK  
SCLK  
SDTO  
FM  
BTSC  
Decoder  
Serial I/O  
Interface  
Demodulator  
Control  
Register  
CAD1 CAD0  
SCL  
SDA INT0 INT1  
.
MS0547-E-01  
2007/03  
- 1 -  

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