NB7_IS_CHAN_AD
eq = NB7_IS_CHAN_AD(channel) ? 0x6 : 0x4;
flat_gain = NB7_IS_CHAN_AD(channel) ? 0x2 : 0x1;
flat_gain = NB7_IS_CHAN_AD(channel) ? 0x3 : 0x1;
loss_match = NB7_IS_CHAN_AD(channel) ? 0x1 : 0x3;