MAS3587F datasheet(44/82 Pages) MICRONAS

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MAS 3587F

ADVANCE INFORMATION

Micronas

OUTPUT MODE SELECT

00 06

00 07

D/A Converter Source Mixer

MIX ADC scale

MIX DSP scale

bit[15:8]

00hex ... 7Fhex Linear scaling factor (hex)

for example:

00hex

off

20hex

50 % (

−6dB gain)

40hex

100 % (0 dB gain)

7Fhex

200% (+6dB gain)

In the sum of both mixing inputs exceeds 100 %, clipping may occur in the

successive audio processing.

DAC_IN_ADC

DAC_IN_DSP

00 0E

D/A Converter Output Mode

bit[15]

Mono switch

stereo through

mono matrix applied

bit[14]

Invert right channel

through

right channel is inverted

bit[1:0]

Reserved, must be set to 0

In order to achieve more output power a single loudspeaker can be connected

as a bridge between pins OUTL and OUTR. In this mode bit[15] and bit[14]

must be set.

DAC_OUT_MODE

BASEBAND FEATURES

00 14

Bass

bit[15:8]

Bass range

60hex

+12 dB

58hex

+11 dB

...

08hex

+1dB

00hex

0dB

F8hex

−1dB

...

A8hex

−11 dB

A0hex

−12 dB

Higher resolution is possible, one LSB step results in a gain step of about

1/8 dB.

With positive bass settings clipping of the output signal may occur. Therefore,

it is not recommended to set bass to a value that, in conjunction with volume,

would result in an overall positive gain.

The settings require: max (bass, treble) + loudness + volume

≤ 0dB

bit[7:0]

Not used, must be set to 0

BASS

Table 3–12: Codec control registers on I2C subaddress 6Chex

Address

(hex)

Function

Name

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