ak4140 AKM Semiconductor, Inc., ak4140 Datasheet

ak4140

Manufacturer Part Number

ak4140

Description

Digital Btsc Decoder

Manufacturer

AKM Semiconductor, Inc.

Datasheet

1.AK4140.pdf (43 pages)

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Meier Automation Equipment Co., Limited

Part Number:

ak4140VF

Manufacturer:

AKM

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ASAHI KASEI

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

requires no alignment of external parts. The AK4140 supports major audio data formats (MSB justified,

STB/TV, AV recorder etc.

The dbx-TV

licensed by THAT Corporation. The dbx-TV provides high performance solutions with high quality sound.

MS0547-E-01

S, TDM) to interface with usual DSP. Therefore, the AK4140 is suitable for the systems such as Digital

brand identifies a range of technology solutions for digital TV-audio decoding developed and

FILT

SIF

VDD

Demodulator

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 / I

S/(N+D): 0.13%

S/N:

Power Supply: 2.7 ~ 3.6V

Ta: -20 ~ 85°C

CAD1 CAD0

VSS

73dB

GENERAL DESCRIPTION

PDN

Control

SCL

Decoder

FEATURES

BTSC

- 1 -

MCLK

SDA INT0

Clock Divider

technology licensed from THAT Corporation

INT1

Serial I/O

Interface

Digital BTSC Decoder

S or TDM

TDMIN

LRCK

SCLK

SDTO

AK4140

[AK4140]

2007/03

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