Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

AKD4554 Datasheet(PDF) 9 Page - Asahi Kasei Microsystems

Part # AKD4554
Description  Low Power & Small Package 16bit ?誇 CODEC
Download  17 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AKM [Asahi Kasei Microsystems]
Direct Link  http://www.akm.com
Logo AKM - Asahi Kasei Microsystems

AKD4554 Datasheet(HTML) 9 Page - Asahi Kasei Microsystems

Back Button AKD4554 Datasheet HTML 5Page - Asahi Kasei Microsystems AKD4554 Datasheet HTML 6Page - Asahi Kasei Microsystems AKD4554 Datasheet HTML 7Page - Asahi Kasei Microsystems AKD4554 Datasheet HTML 8Page - Asahi Kasei Microsystems AKD4554 Datasheet HTML 9Page - Asahi Kasei Microsystems AKD4554 Datasheet HTML 10Page - Asahi Kasei Microsystems AKD4554 Datasheet HTML 11Page - Asahi Kasei Microsystems AKD4554 Datasheet HTML 12Page - Asahi Kasei Microsystems AKD4554 Datasheet HTML 13Page - Asahi Kasei Microsystems Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 17 page
background image
ASAHI KASEI
[AK4554]
MS0325-E-01
2005/08
- 9 -
OPERATION OVERVIEW
System Clock Input
The AK4554 can be input MCLK=256fs, 384fs, 512fs, 768fs or 1024fs (fs is equal to or lower than 25kHz when MCLK
is 1024fs). The input clock applied to the MCLK pin as internal master clock is divided into 256fs automatically. When
MCLK is 1024fs, oversampling rate of D/A converter is automatically changed from 128fs to 256fs. The relationship
between the external clock applied to the MCLK input and the desired sample rate is defined in Table 1. The LRCK clock
input should be synchronized with MCLK. The phase between these clocks does not matter. *fs is sampling frequency.
When the synchronization is out of phase by changing the clock frequencies during normal operation, the AK4554 may
occur click noise.
All external clocks(MCLK, SCLK and LRCK) must be present unless PWADN=PWDAN= “L”. If these clocks are not
provided, the AK4554 may draw excess current and may not possibly operate properly because the device utilizes
dynamic refreshed logic internally.
fs
MCLK
SCLK
256fs
384fs
512fs
768fs
1024fs
32fs
64fs
8.0kHz
2.0480MHz
3.0720MHz
4.0960MHz
6.1440MHz
8.1920MHz
0.2560MHz
0.512MHz
16.0kHz
4.0960MHz
6.1440MHz
8.1920MHz
12.2880MHz
16.3840MHz
0.5120MHz
1.024MHz
32.0kHz
8.1920MHz
12.2880MHz
16.3840MHz
24.5760MHz
N/A
1.0240MHz
2.048MHz
44.1kHz
11.2896MHz
16.9344MHz
22.5792MHz
33.8688MHz
N/A
1.4112MHz
2.822MHz
48.0kHz
12.2880MHz
18.4320MHz
24.5760MHz
36.8640MHz
N/A
1.5360MHz
3.072MHz
Table 1. System Clock Example
For low sampling rates, outband noise causes S/N of DAC to degrade. S/N is improved by setting MCLK to 1024fs. Table
2 shows S/N of DAC output.
fs
MCLK
S/N(fs=8kHz, A-weighted)
8kHz
∼ 50kHz
256fs/384fs/512fs/768fs
84dB
8kHz
∼ 25kHz
1024fs
90dB
Table 2. Relationship among fs, MCLK frequency and S/N of DAC


Similar Part No. - AKD4554

ManufacturerPart #DatasheetDescription
logo
Asahi Kasei Microsystem...
AKD4554 AKM-AKD4554 Datasheet
822Kb / 27P
   Evaluation board Rev.0 for AK4554
AKD4554-E AKM-AKD4554-E Datasheet
822Kb / 27P
   Evaluation board Rev.0 for AK4554
More results

Similar Description - AKD4554

ManufacturerPart #DatasheetDescription
logo
Asahi Kasei Microsystem...
AK4550 AKM-AK4550 Datasheet
102Kb / 15P
   LOW POWER & SMALL PACKAGE 16BIT CODEC
AK4555 AKM-AK4555 Datasheet
192Kb / 17P
   Low Power & Small Package 20bit ?誇 CODEC
AK5355 AKM-AK5355_05 Datasheet
161Kb / 20P
   Low Power 16bit ?誇 ADC
AK5355VT AKM-AK5355VT Datasheet
167Kb / 20P
   Low Power 16bit ?誇 ADC
AK4651 AKM-AK4651 Datasheet
588Kb / 66P
   16Bit ?誇 CODEC with MIC/HP/SPK-AMP
AK4551 AKM-AK4551 Datasheet
109Kb / 15P
   LOW POWER & SMALL PACKAGE 20BIT CODEC
AK4650 AKM-AK4650 Datasheet
868Kb / 86P
   16Bit ?誇 CODEC with MIC/HP/SPK-AMP & TSC
AK4556 AKM-AK4556 Datasheet
182Kb / 22P
   3V 192kHz 24Bit ?誇 CODEC
AKD4641EN-A AKM-AKD4641EN-A Datasheet
732Kb / 54P
   16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface.
AK5355 AKM-AK5355 Datasheet
120Kb / 14P
   LOW POWER 16BIT ADC
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com