CS3308 datasheet(18/44 Pages) CIRRUS

18 / 44 page

DS702F1

CS3308

Combining the multiple group addressing capabilities of the CS3308 (as detailed in section 5.8.2 on

page 24) with the internal master control mapping abilities described above allows the configuration and

direct addressing of multiple logical groups of channels across multiple CS3308 devices within a system.

5.4.2

Volume & Muting Control Implementation

Figure 6 below diagrams in detail the volume and muting control architecture of the CS3308 for an arbi-

trary channel ‘N’.

This diagram incorporates all volume and muting control concepts presented in sections 5.4 - 5.6; it is

included as a reference and will serve to corroborate the information presented in these sections.

Referenced Control

Master X Mask .................... “Master 1 Mask - Address 10h” on page 36

“Master 2 Mask - Address 13h” on page 37

“Master 3 Mask - Address 16h” on page 38

Limit Volume Result

-96 dB to +22 dB

Ch. N - Volume

Ch. N - ¼ dB Control

Ch. N Master 2 Mask

Hardware Mute Input

Pin 4

Master 1 - Mute

Mute

Channel N - Mute

Master 3 - Mute

Master 2 - Mute

Ch. N Master 1 Mask

Ch. N Master 3 Mask

Channel N

REFI

REFO

Input

Output

Mask 1

Mask 2

Mask 3

Master 1 - Volume

Master 1 - ¼ dB

Master 2 - Volume

Master 2 - ¼ dB

Mask 2

Master 3 - Volume

Master 3 - ¼ dB

Mask 3

Mask 1

Mask 3

Mask 2

Mute Input Enable

Mute if result is

less than -96 dB.

Figure 6. Volume & Muting Control Implementation

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