ZHCSK28E April 2003 – July 2019 PCM1753 , PCM1754 , PCM1755
PRODUCTION DATA.
The PCM1754 device has a ZERO flag pin, ZEROA (pin 11). ZEROA is the L-channel and R-channel common zero flag pin. If the data for L-channel and R-channel remains at a 0 level for 1024 sampling periods (or LRCK clock periods), ZEROA is set to a logic 1 state.