CALCULATIONS

PropertyFormulaValue
high-pass cutoff1/(2*pi*3.3uF*33k)1.46 Hz
low-pass cutoff1/(2*pi*330pF*33k)14.6 kHz
output cutoff (8ohm)1/(2*pi*330uF*8)60.3 Hz
output cutoff (32ohm)1/(2*pi*330uF*30)16.1 Hz
max transfer loop latency (128kbps)4e6/(128*1024/8)*4976 cycles
max transfer loop latency (192kbps)4e6/(192*1024/8)*4651 cycles
max fetch latency (128kbps)16384*8/(128*1024)1.0 sec
max fetch latency (192kbps)16384*8/(192*1024)0.66 sec

note: timing requirements assessed at 16KB buffer, 4 bytes per transfer loop, 4 MHz clock

note: actual fetch latency experienced is much lower than worst-case due to sequential sector transfers