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Stereo Encoder. AK4145 Datasheet

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Stereo Encoder. AK4145 Datasheet






AK4145 Encoder. Datasheet pdf. Equivalent




AK4145 Encoder. Datasheet pdf. Equivalent





Part

AK4145

Description

Digital BTSC Stereo Encoder



Feature


[AK4145] = Preliminary = AK4145 Digit al BTSC Stereo Encoder GENERAL DESCRIPT ION The AK4145 is a BTSC Encoder with D /A Converter, which is optimized for Di gital AV application. The AK4145 achiev es high audio performance using the dig ital BTSC encoding architecture require s no alignment of external parts. The A K4145 supports major audio data formats (MSB justified, I.
Manufacture

Asahi Kasei Microsystems

Datasheet
Download AK4145 Datasheet


Asahi Kasei Microsystems AK4145

AK4145; 2S, TDM) to interface with usual DSP. Th erefore, the AK4145 is suitable for the systems such as Digital STB/TV, digita l recorder. FEATURES † Alignment Free Digital BTSC Stereo Encoding † Base ba nd Composite Audio Output (Mono/Stereo) † Digital Volume for Composite Audio Output † Digital De-emphasis filter (3 2k/44.1k/48kHz) † Stereo Digital Volum e Control for Audio Inp.


Asahi Kasei Microsystems AK4145

ut Data † Soft Mute † Sampling Rate (f s): 32k/44.1k/48kHz † Master Clock: 25 6fs/384fs/512fs/768fs † I/F format: 24 -Bit MSB justified, 24/20/16-Bit LSB ju stified or I2S † Control: Standalone/I 2C-bus Selectable † Video Input for Pi lot Synchronization † S/(N+D): 0.01% S/N: 82dB † Channel Separation: 47dB † Power Supply: 1.7V ~ 1.9V, 2.7 ~ 3. 6V † Ta: -20 ~ 85°C P/S PDN .


Asahi Kasei Microsystems AK4145

MCLK FILT TVDD DVDD www.DataSheet4U.com FS1/SDA DIF/SCL µP Interface PLL VSS VCOM AVDD LRCK BICK SDTI Audio D ata Interface De-emphasis, DVOL, Stere o Matrix Digital BTSC Encoder DATT D AC CA Sync separator CV/27M Rev. 0. 3-PB -1- 2007/12 [AK4145] ■ Orderi ng Guide AK4145ET AKD4145 -20 ∼ +85° C Evaluation Board 16pinTSSOP ■ Pin Layout FILT PSN CV27M PDN .

Part

AK4145

Description

Digital BTSC Stereo Encoder



Feature


[AK4145] = Preliminary = AK4145 Digit al BTSC Stereo Encoder GENERAL DESCRIPT ION The AK4145 is a BTSC Encoder with D /A Converter, which is optimized for Di gital AV application. The AK4145 achiev es high audio performance using the dig ital BTSC encoding architecture require s no alignment of external parts. The A K4145 supports major audio data formats (MSB justified, I.
Manufacture

Asahi Kasei Microsystems

Datasheet
Download AK4145 Datasheet




 AK4145
[AK4145]
= Preliminary =
AK4145
Digital BTSC Stereo Encoder
GENERAL DESCRIPTION
The AK4145 is a BTSC Encoder with D/A Converter, which is optimized for Digital AV application. The
AK4145 achieves high audio performance using the digital BTSC encoding architecture requires no
alignment of external parts. The AK4145 supports major audio data formats (MSB justified, I2S, TDM) to
interface with usual DSP. Therefore, the AK4145 is suitable for the systems such as Digital STB/TV,
digital recorder.
FEATURES
† Alignment Free Digital BTSC Stereo Encoding
† Base band Composite Audio Output (Mono/Stereo)
† Digital Volume for Composite Audio Output
† Digital De-emphasis filter (32k/44.1k/48kHz)
† Stereo Digital Volume Control for Audio Input Data
† Soft Mute
† Sampling Rate (fs): 32k/44.1k/48kHz
† Master Clock: 256fs/384fs/512fs/768fs
† I/F format: 24-Bit MSB justified, 24/20/16-Bit LSB justified or I2S
† Control: Standalone/I2C-bus Selectable
† Video Input for Pilot Synchronization
† S/(N+D): 0.01%
† S/N: 82dB
† Channel Separation: 47dB
† Power Supply: 1.7V ~ 1.9V, 2.7 ~ 3.6V
† Ta: -20 ~ 85°C
www.DataSheet4U.com
FS1/SDA
DIF/SCL
P/S
µP
Interface
PDN
LRCK
BICK
SDTI
Audio
Data
Interface
De-emphasis,
DVOL,
Stereo Matrix
MCLK
PLL
Digital
BTSC
Encoder
FILT
DATT
DAC
Sync
separator
TVDD
DVDD
VSS
VCOM
AVDD
CA
CV/27M
Rev. 0.3-PB
-1-
2007/12




 AK4145
Ordering Guide
AK4145ET
AKD4145
Pin Layout
-20 +85°C
Evaluation Board
FILT
PSN
CV27M
PDN
MCLK
LRCK
BICK
SDTI
1
2
3
4
5
6
7
8
16pinTSSOP
Top
View
16
15
14
13
12
11
10
9
CA
AVDD
VCOM
VSS
DVDD
TVDD
DIF/SCL
FS/SDA
[AK4145]
www.DataSheet4U.com
Rev. 0.3-PB
-2-
2007/12




 AK4145
[AK4145]
PIN/FUNCTION
No. Pin Name I/O Function
1 FILT
- Filter Pin, 4.7nF should be connected between FILT pin and VSS pin.
2 PSN
I Parallel/Serial Select Pin (Internal pull-up pin)
“L”: Serial control mode, “H”: Parallel control mode
3 CV27M I
Composite Video or 27MHz Signal Input Pin.
4 PDN
I Power-Down Mode Pin
When at “L”, the AK4145 is in the power-down mode and is held in reset.
The AK4145 must be reset once upon power-up.
5 MCLK I Master Clock Input Pin
6 LRCK I Channel Clock Input Pin
7 BICK
I Audio Serial Data Clock Input Pin
8 SDTI
I Audio Serial Data Input Pin
9 FS
I Sampling Rate Control Pin in parallel control mode
SDA
I/O Control Data Pin in serial control mode
10 DIF
I Audio Data Interface Format Pin in parallel control mode
SCL I Control Data Clock Pin in serial control mode
11 TVDD - Digital I/O Power Supply Pin, DVDD(min:1.7V) 3.6V
12 DVDD - Digital Power Supply Pin, 1.7 1.9V
13 VSS
- Ground Pin
14 VCOM
O Common Voltage Pin, AVDD/2
Normally connected to VSS with a 0.1μF ceramic capacitor in parallel with a 10μF
electrolytic cap.
15 AVDD - Analog Power Supply Pin, 2.7 3.6V
16 CA
O Baseband Composite Audio Output Pin
Note: All input pins except pull-up pin should not be left floating.
Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
www.DatCaSlahseseitf4iUca.ctioomn
Analog
Digital
Pin Name
CV
FS(Parallel mode), DIF(Parallel mode)
Setting
Connect to VSS.
Connect to VDD or VSS.
Output Status at PDN pin = “L”
Below is the output status of each output pin when the PDN pin = “L”.
Pin# Pin Name
1 FILT
9 SDA
14 VCOM
16 CA
Status
VSS
Hi-Z
VSS
VCOM(=VSS)
Rev. 0.3-PB
-3-
2007/12



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