AK4140

更新时间： 2024-11-17 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

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数据手册

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AK4140 数据手册

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

BTSC

Decoder

Serial I/O

Interface

Demodulator

Control

CAD1 CAD0

SCL

SDA INT0 INT1

MS0547-E-01

2007/03

- 1 -

12 3 4 5 6 7...43

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