CDB3318 Cirrus Logic Inc, CDB3318 Datasheet - Page 39

• Manufacturer Part Number: CDB3318
• Description: Eval Bd - 8-channel Digital Vol Cntrl
• Manufacturer: Cirrus Logic Inc

Specifications of CDB3318

• Main Purpose: Audio, Volume Control
• Embedded: No
• Utilized Ic / Part: CS3318
• Primary Attributes: 8 Single-Ended Analog Inputs and Outputs, USB or RS232 Interface
• Secondary Attributes: Graphical User Interface
• Description/function: Audio DSPs
• Operating Supply Voltage: 8 V to 9 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: CS3310
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant
• Other names: 598-1497

DS693F1
7.17
7.17.1 Master 3 Mute (Bit 1)
7.17.2 Master 3 ¼ dB Control (Bit 0)
Reserved
7
Master 3 Control - Address 18h
Default = 0
Function:
Default = 0
Function:
as dictated by the ZCMode[1:0] and TimeOut[2:0] bits in the Device Config 2 register (see
Configuration 2 - Address 0Ch” on page
The value of the Master 3 volume control register is mapped to the desired 0.5 dB step Master 3 vol-
ume setting by the following equation:
In the equation above, “Desired Volume Setting in dB” is determined by rounding the desired ¼ dB
resolution volume setting down to ½ dB resolution.
It should be noted that input values outside the CS3318’s analog range of +22 dB to -96 dB are valid,
however, the volume of each channel will be limited to the CS3318’s analog range (see
its” on page
See
This bit controls the Master 3 mute state. When set, the Master 3 mute condition is active. When
cleared, the Master 3 mute condition is released.
See
When set, ¼ dB of gain will be added to the Master 3 volume level.
See
Reserved
Table 5 on page 31
“Muting Controls” on page 21
Table 6 on page 32
6
20).
Reserved
Register Value
5
for example register settings.
for an example of volume settings using the ¼ dB control.
Reserved
=
for more information about the muting behavior of the CS3318.
4
(
2
×
34).
Desired Volume Setting in dB
Reserved
3
Reserved
2
)
+
M3_Mute
210
1
“Volume Lim-
CS3318
M3_Qtr
“Device
0
39