AK4121

ASAHI KASEI www.DataSheet4U.com [AK4121] 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 (MCLK) SDTI ILRCK IBICK SDTO OLRCK OBICK Serial Audio I/F De-em filter Sample Rate Converter soft mute Serial Audio I/F CMODE2 AVSS FILT PLL CMODE1 CMODE0 IDIF2 IDIF1 IDIF0 ODIF1 ODIF0 MS0191-E-03 -1- 2004/08 ASAHI KASEI www.DataSheet4U.com [AK4121] „ Ordering Guide AK4121VF AKD4121 −40 ∼ +85°C 24pin VSOP (0.65mm pitch) Evaluation Board for AK4121 „ Pin Layout FILT AVSS PDN SMUTE DEM0 DEM1 ILRCK...