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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STA350B датащи(PDF) 79 Page - STMicroelectronics |
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STA350B датащи(HTML) 79 Page - STMicroelectronics |
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79 / 94 page  DocID018572 Rev 7 79/94 STA350B, STA350BW Register description 94 8.18.5 Extended biquad selector De-emphasis filter as well as bass and treble controls can be configured as user-defined filters when the equalization coefficients link is activated (BQL = 1) and the corresponding BQx bit is set to 1. When filters from 5th to 7th are configured as user-programmable, the corresponding coefficients are stored respectively in addresses 0x20-0x24 (BQ5), 0x25-0x29 (BQ6), 0x2A- 0x2E (BQ7) as in Table 71. Note: BQx bits are ignored if BQL = 0 or if DEMP = 1 (relevant for BQ5) or CxTCB = 1 (relevant for BQ6 and BQ7). 8.19 EQ soft-volume configuration registers (addr 0x37 - 0x38) The soft-volume update has a fixed rate by default. Using register 0x37 and 0x38 it is possible to override the default behavior allowing different volume change rates. It is also possible to independently define the fade-in (volume is increased) and fade-out (volume is decreased) rates according to the desired behavior. BQ5 Mode 0 Pre-set de-emphasis filter selected 1 User-defined biquad 5 coefficients are selected BQ6 Mode 0 Pre-set bass filter selected as per Table 64 1 User-defined biquad 6 coefficients are selected BQ7 Mode 0 Pre-set treble filter selected as per Table 64 1 User-defined biquad 7 coefficients are selected D7 D6 D5 D4 D3 D2 D1 D0 SVUPE SVUP[4] SVUP[3] SVUP[2] SVUP[1] SVUP[0] 0000 0000 D7 D6 D5 D4 D3 D2 D1 D0 SVDWE SVDW4] SVDW[3] SVDW[2] SVDW[1] SVDW[0] 0000 0000 |
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