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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Part Number:
ak4140VF
Manufacturer:
AKM
Quantity:
20 000
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,
I
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
2
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
FM
VSS
73dB
GENERAL DESCRIPTION
Register
PDN
Control
SCL
Decoder
FEATURES
BTSC
- 1 -
MCLK
SDA INT0
.
Clock Divider
®
technology licensed from THAT Corporation
INT1
Serial I/O
Interface
2
Digital BTSC Decoder
S or TDM
TDMIN
LRCK
SCLK
SDTO
AK4140
[AK4140]
2007/03