STA382BW datasheet(128/172 Pages) STMICROELECTRONICS

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STA382BW

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7.9.2

EQ bypass

EQ control can be bypassed on a per-channel basis for channels 1 and 2. If EQ control is

bypassed on a given channel, the prescale and all filters (biquads, bass, treble in any

combination) are bypassed for that channel.

7.9.3

Volume bypass

Each channel contains an individual channel volume bypass. If a particular channel has

volume bypassed via the CxVBP = 1 register, then only the channel volume setting for that

particular channel affects the volume setting, the master volume setting will not affect that

channel.

Table 143.

Volume bypass register

7.9.4

Binary output enable registers

Each individual channel output can be set to output a binary PWM stream. In this mode

output A of a channel is considered the positive output and output B is the negative inverse.

7.9.5

Limiter select

Limiter selection can be made on a per-channel basis according to the channel limiter select

bits. CxLS bits are considered in case of dual-band DRC and EQDRC usage (7.16.1).

Table 142.

EQ bypass

CxEQBP

Mode

Perform EQ on channel x - normal operation

Bypass EQ on channel x

CxVBP

Mode

Normal volume operations

Volume is bypassed

Table 144.

Binary output enable registers

CxBO

Mode

FFX 3-state output - normal operation

Binary output

Table 145.

Channel limiter mapping as a function of CxLS bits

CxLS[1:0]

Channel limiter mapping

Channel has limiting disabled

Channel is mapped to limiter #1

Channel is mapped to limiter #2

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