CS3308-CQZ Cirrus Logic Inc, CS3308-CQZ Datasheet - Page 37

• Manufacturer Part Number: CS3308-CQZ
• Description: IC ANLG VOL CTRL 8CH DGTL 48LQFP
• Manufacturer: Cirrus Logic Inc
• Type: Controllerr

Specifications of CS3308-CQZ

• Package / Case: 48-LQFP
• Applications: High End Audio
• Mounting Type: Surface Mount
• Product: General Purpose Audio Amplifiers
• Output Power: 362 mW
• Available Set Gain: 22 dB
• Thd Plus Noise: - 112 dB
• Operating Supply Voltage: 3.5 V / 5.25 V
• Supply Current: 36 mA
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 2 KOhms
• Input Offset Voltage: 0.75 V
• Input Signal Type: Single
• Minimum Operating Temperature: - 10 C
• Output Signal Type: Analog
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 3.1 V
• Output Type: 8-Channel Audio
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1778 - EVALUATION BOARD FOR CS5376598-1496 - BOARD EVAL FOR CS3308 VOL CTRL
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1598

DS702F1
7.11
7.11.1 Master 1 Mute (Bit 1)
7.11.2 Master 1 ¼ dB Control (Bit 0)
7.12
7.13
7.13.1 Master 2 Volume Control (Bits 7:0)
M2_Ch8M
Reserved
M2_Vol7
7
7
7
Master 1 Control - Address 12h
Master 2 Mask - Address 13h
Master 2 Volume - Address 14h
Default = 0
Function:
Default = 0
Function:
Each bit in this register serves as a Master 2 mask for its corresponding channel.
If a mask bit is set to ‘1’, the corresponding channel is unmasked, meaning that it will be affected by the
Master 2 volume and muting controls.
If a mask bit is set to ‘0’, the corresponding channel is masked, meaning that it will not be affected by the
Master 2 volume and muting controls.
This register defaults to FFh (all channels unmasked).
Default = 11010010
Function:
This bit controls the Master 1 mute state. When set, the Master 1 mute condition is active. When
cleared, the Master 1 mute condition is released.
See
When set, ¼ dB of gain will be added to the Master 1 volume level.
See
The Master 2 volume control register allows the user to simultaneously gain or attenuate all un-
masked channels from +22 dB to -96 dB in 0.5 dB increments. The volume changes are implemented
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 2 volume control register is mapped to the desired 0.5 dB step Master 2 vol-
ume setting by the following equation:
M2_Ch7M
Reserved
M2_Vol6
“Muting Controls” on page 21
Table 6 on page 32
6
6
6
M2_Ch6M
Reserved
M2_Vol5
Register Value
5
5
5
for an example of volume settings using the ¼ dB control.
M2_Ch5M
Reserved
M2_Vol4
for more information about the muting behavior of the CS3308.
=
4
4
4
(
2
×
34).
Desired Volume Setting in dB
M2_Ch4M
Reserved
M2_Vol3
3
3
3
M2_Ch3M
Reserved
M2_Vol2
2
2
2
)
+
M2_Ch2M
M1_Mute
M2_Vol1
210
1
1
1
M2_Ch1M
CS3308
M2_Vol0
M1_Qtr
“Device
0
0
0
37