STA350B datasheet(46/94 Pages) STMICROELECTRONICS

46 / 94 page

STA350B, STA350BW

46/94

DocID018572 Rev 7

8.4.7

Zero-detect mute enable

Setting the ZDE bit enables the zero-detect automatic mute. The zero-detect circuit looks at

the data for each processing channel at the output of the crossover (bass management)

filter. If any channel receives 2048 consecutive zero value samples (regardless of fs) then

that individual channel is muted if this function is enabled.

8.4.8

Submix mode enable

8.5

Configuration register E (addr 0x04)

8.5.1

Max. power correction variable

8.5.2

Max. power correction

Setting the MPC bit turns on special processing that corrects the STA350Bx power device at

high power. This mode should lower the THD+N of a full FFX system at maximum power

output and slightly below. If enabled, MPC is operational in all output modes except tapered

(OM[1,0] = 01) and binary. When OCFG = 00, MPC does not effect channels 3 and 4, the

line-out channels.

Table 33. Zero-detect mute enable

Bit

R/W

RST

Name

Description

R/W

ZDE

Setting of 1 enables the automatic zero-detect mute

Table 34. Sub-mix mode enable

Bit

R/W

RST

Name

Description

7R/W

SME

0: Sub-mix into left/right disabled

1: Sub-mix into left/right enabled

SVE

ZCE

DCCV

PWMS

AME

NSBW

MPC

MPCV

1100

0010

Table 35. Max. power correction variable

Bit

R/W

RST

Name

Description

R/W

MPCV

0: Use standard MPC coefficient

1: Use MPCC bits for MPC coefficient

Table 36. Max. power correction

Bit

R/W

RST

Name

Description

1R/W

MPC

Setting of 1 enables power bridge correction for THD

reduction near maximum power output

STA350B Datasheet(PDF) 46 Page - STMicroelectronics

STA350B Datasheet(HTML) 46 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94

Datasheet Download

Link URL