CS4362-KQZ(2004) Просмотр технического описания (PDF) - Cirrus Logic

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CS4362-KQZ
(Rev.:2004)

114 dB, 192 kHz 6-Channel D/A Converter

Cirrus Logic 

CS4362

3.3.6 MUTE PIN CONTROL(MUTEC1, MUTEC0)

Default = 00

00 - Six mute control signals

01, 10 - One mute control signal

11 - Three mute control signals

Function:

Selects how the internal mute control signals are routed to the MUTEC1 through MUTEC6 pins.

When set to ‘00’, there is one mute control signal for each channel: AOUT1A on MUTEC1, AOUT1B

on MUTEC2, etc. When set to either ‘01’ or ‘10’, there is a single mute control signal on the MUTEC1

pin. When set to ‘11’, there are three mute control signals, one for each stereo pair: AOUT1A and

AOUT1B on MUTEC1, AOUT2A and AOUT2B on MUTEC2, and AOUT3A and AOUT3B on

MUTEC3.

3.4 Filter Control (address 04h)

7

Reserved

0

6

Reserved

0

5

Reserved

0

4

FILT_SEL

0

3

Reserved

0

2

DEM1

0

1

DEM0

0

0

RMP_DN

0

3.4.1 INTERPOLATION FILTER SELECT (FILT_SEL)

Default = 0

0 - Fast roll-off

1 - Slow roll-off

Function:

This Function allows the user to select whether the interpolation filter has a fast or slow roll off. For

filter characteristics please see Section 1.

3.4.2 DE-EMPHASIS CONTROL (DEM)

Default = 00

00 - Disabled

01 - 44.1 kHz

10 - 48 kHz

11 - 32 kHz

Function:

Selects the appropriate digital filter to maintain the standard 15 µs/50 µs digital de-emphasis filter re-

sponse at 32, 44.1 or 48 kHz sample rates. (see Figure 39)

De-emphasis is only available in Single Speed Mode.

DS257F1

19

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