AK4591 Datasheet | Asahi Kasei Microdevices

Description The AK4591 is a unique CODEC that bines both high performance and integration in a single chip. The uniqueness begins with the ADC input selector that can select 2 sets of stereo data from 9 sets of available stereo inputs. The 4ch ADC and 6 ch DAC offer high qualityanalog performance with 97d B (48 k Hz) dynamic range on the ADC and 107d B (48 k Hz) dynamic range on the DAC. This CODEC supports sampling frequencies from 8 k Hz to 96 k Hz and is suitable for rear seat entertainment to select and distribute 2 different sources in an automotive environment. The AK4591 is packaged in a 64-lead LQFP package offering an operational temperature range of -40°C to 85°C. 2. Features Input selector - Selects 2 sets of stereo data from 9 sets of available stereo inputs - 2 stereo sets of differential - 7 stereo sets of single ended ADC: 4 Channels (2 sets of stereo ADC) - 24-bit 64 x Over-sampling delta sigma - DR, S/N : 97d BA (Fs: 48k Hz Full-differential Input) - S/(N+D) : 92 d B (Fs: 48k Hz Full-differential Input) - 8k Hz to 96k Hz sampling rate - HPF included for DC offset cancellation DAC: 6 Channels (3 sets of stereo DAC) - 24-bit 128 x Over-sampling advanced multi-bit - DR : 107d BA (6ch) (Fs: 48k Hz) - S/N: 108d BA(6ch) (Fs: 48k Hz) - S/(N+D) : 90 d B (6ch) (Fs: 48k Hz) - 8k Hz to 96k Hz sampling rate Digital Interface - Serial audio signal input port : 8ch - Serial audio signal output port : 4ch - Serial interface port for micro-controller : 1set Other - Power supply: + 3.3V ±0.3V - Operating temperature range: -40°C~85°C - Package : 64pin LQFP(0.5mm pitch) [MS0295-E-01] -1- 2012/12 http://.. [AK4591] 3. Block diagram AINL1-, AINR1AINL1+, AINR1+ AINL3, AINR3 AINL4, AINR4 AINL5, AINR5 AINL6, AINR6 2 2 2 2 2 2 SDATA ASEL1[2:0] PSAD1 PSAD2 SDATA SWA2 SWA1 SWI1 OUT1E_N AVDD VREFH V VREFL ADC1 VREF AVSS BVSS SDATO1 AINL2-, AINR2AINL2+, AINR2+ 2...