CS4362A View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS4362A

114 dB, 192 kHz 6-Channel D/A Converter - 48L LQFP

Cirrus Logic 

5.2.2 Mode Control 3 (address 03h)

7

SZC1

1

6

SZC0

0

5

SNGLVOL

0

4

RMP_UP

0

3

MUTEC+/-

0

2

AMUTE

1

CS4362A

1

MUTEC1

0

0

MUTEC0

0

5.2.3 Soft Ramp AND Zero Cross CONTROL (SZC)

Default = 10

00 - Immediate Change

01 - Zero Cross

10 - Soft Ramp

11 - Soft Ramp on Zero Crossings

Function:

Immediate Change

When Immediate Change is selected all level changes will take effect immediately in one step.

Zero Cross

Zero Cross Enable dictates that signal level changes, either by attenuation changes or muting, will occur

on a signal zero crossing to minimize audible artifacts. The requested level change will occur after a timeout

period between 512 and 1024 sample periods (10.7 ms to 21.3 ms at 48 kHz sample rate) if the signal does

not encounter a zero crossing. The zero cross function is independently monitored and implemented for

each channel.

Soft Ramp

Soft Ramp allows level changes, both muting and attenuation, to be implemented by incrementally ramping,

in 1/8 dB steps, from the current level to the new level at a rate of 1 dB per 8 left/right clock periods.

Soft Ramp on Zero Crossing

Soft Ramp and Zero Cross Enable dictates that signal level changes, either by attenuation changes or mut-

ing, will occur in 1/8 dB steps and be implemented on a signal zero crossing. The 1/8 dB level change will

occur after a timeout period between 512 and 1024 sample periods (10.7 ms to 21.3 ms at 48 kHz sample

rate) if the signal does not encounter a zero crossing. The zero cross function is independently monitored

and implemented for each channel.

5.2.4 Single Volume Control (Snglvol)

Default = 0

0 - Disabled

1 - Enabled

Function:

The individual channel volume levels are independently controlled by their respective Volume Control Bytes

when this function is disabled. The volume on all channels is determined by the A1 Channel Volume Con-

trol Byte, and the other Volume Control Bytes are ignored when this function is enabled.

34

DS617PP1

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