AK4121 Datasheet PDF - Asahi Kasei Microsystems

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AK4121
Asahi Kasei Microsystems

Part Number AK4121
Description ASYNCHRONOUS SAMPLE RATE CONVERTER
Page 19 Pages


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ASAHI KASEI
[AK4121]
www.DataSheet4U.com
AK4121
Asynchronous Sample Rate Converter
GENERAL DESCRIPTION
AK4121 is a stereo asynchronous sample rate converter. The input sample rate ranges from 8kHz to
96kHz. The output sample rate is 32kHz, 44.1kHz, 48kHz or 96kHz. Using the AK4121 simplifies
system design, since the AK4121’s internal PLL eliminates the need for a master clock in slave mode.
Then the AK4121 is suitable for applications requiring multiple sample rates, such as Car Audio, DVD
recorders, and digital audio recording.
FEATURES
† Stereo asynchronous sample rate converter
† Input sample rate range (FSI): 8kHz to 96kHz
† Output sample rate (FSO): 32kHz/44.1kHz/48kHz/96kHz
† Input to output Sample rate ratio: FSO/FSI = 0.33 to 6
† THD+N: –113dB
† I/F format: MSB justified, LSB justified (24/20/16bit) and I2S
† Clock for Master mode: 256/384/512/768fso
† De-emphasis filter: 32kHz/44.1kHz/48kHz
† SRC Bypass mode
† Soft Mute function
† Power Supply: VDD: 3.0 to 3.6V, TVDD: 3.0 to 5.5V (for input tolerant)
† Ta: –40 to +85°C
PDN
DEM0 DEM1
SMUTE
TVDD VDD DVSS
SDTI
ILRCK
IBICK
Serial
Audio
I/F
De-em
filter
Sample
Rate
Converter
soft
mute
AVSS
FILT
PLL
Serial
Audio
I/F
(MCLK)
SDTO
OLRCK
OBICK
CMODE2
CMODE1
CMODE0
IDIF2 IDIF1 IDIF0
ODIF1 ODIF0
MS0191-E-03
-1-
2004/08

AK4121 datasheet pdf
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