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AK4121 Datasheet(PDF) 1 Page - Asahi Kasei Microsystems |
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AK4121 Datasheet(HTML) 1 Page - Asahi Kasei Microsystems |
1 / 19 page ASAHI KASEI [AK4121] MS0191-E-03 2004/08 - 1 - 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 I 2S 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 Serial Audio I/F Sample Rate Converter Serial Audio I/F ILRCK IBICK SDTI OLRCK OBICK SDTO (MCLK) PDN IDIF1 VDD DVSS PLL De-em filter DEM0 DEM1 IDIF0 ODIF1 ODIF0 IDIF2 CMODE0 SMUTE CMODE1 AVSS FILT TVDD CMODE2 soft mute Asynchronous Sample Rate Converter AK4121 |
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