Vishay Dale

Control ST-BUS In is a TTL-compatible digital input used to control the function of the filter/codec. Three modes of operation may be effected by applying to this input a logic high (VDD), logic low (GNDD), or an 8-bit serial word, depending on the logic states of CA and F1i. Functions controlled are: powerdown, filter gain adjust, loopback, chip testing, SD outputs.