ProfessionaIMode Setting PRO low places the STA020 in profes- sional mode as shown in Figure 6. In professional mode, channel status bit o is transmitted as a one and bits l, 2, 3, 4, 6, 7 and 9 can be controlled via dedicated pins. The pins are actually the in- verse of the identified bit. For example, tying the 01 pin low places a one in channel status bit l. As shown in the application Note, Overview of AESU Digital Audio Inter- face Data Structures, C1 indicates audio/non- audio; C6 and C7 determine the sample fre- quency and C9 allows the encoded channel mode to be stereophonic. EMl lnd EMO deter- mine emphasis and encode C2, C3, C4 as shown in Table 2. Thededicated channel status pins are read at the appropriate time and are logically OR'ed with data input on the channelstatus port, C. In Transparent Mode, these dedicated channel status pins are ignored and channel status bits
SIZA60-V6 on stock| | t2 | h | |
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| t3 | _ | t I |
| HIGH OLD HIGH :PEDANCEBUS DATDA )K |
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| lPARAMETER | TESTCONDITIONS | TYP | UNIT l |
| ICpd Powerdissipationcapacitancaperlatch | Qutputs enabled | | 43 | pF l |
| Oulputs disabled | CL = 50pF,f = 1MHz | 9 |
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