WM8523GEFL/RV Wolfson Microelectronics, WM8523GEFL/RV Datasheet - Page 29

• Manufacturer Part Number: WM8523GEFL/RV
• Description: IC, DAC, STEREO, 2VRMS, 2CH, 24QFN
• Manufacturer: Wolfson Microelectronics

Specifications of WM8523GEFL/RV

• Resolution (bits): 24bit
• Sampling Rate: 192kSPS
• Input Channel Type: Serial
• Digital Ic Case Style: QFN
• No. Of Pins: 24
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Package: RoHS Compliant
• Data Interface: I2C, Serial, SPI
• Supply Voltage Range - Analogue: 2.97V To 3.63V
• Rohs Compliant: Yes

Pre-Production
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VOLUME CHANGE MODES
Volume can be adjusted by step change (either using zero cross or not) or by soft ramp. The volume
change mode is controlled by the DAC_VOL_DOWN_RAMP and DAC_VOL_UP_RAMP bits in R5:
Figure 24 illustrates the effect of the volume ramp:
Figure 24 Volume Ramp Functionality
Table 14 Volume Ramp Control
DAC_CTRL3
REGISTER
ADDRESS
05h
R5
BIT
0
1
DAC_VOL
DAC_VOL
_DOWN_
LABEL
RAMP
RAMP
_UP_
DEFAULT
1
0
DAC Digital Volume Decrease Control
0 = apply volume decreases instantly (step)
1 = ramp volume decreases
DAC Digital Volume Increase Control
0 = apply volume increases instantly (step)
1 = ramp volume increases
DESCRIPTION
PP, Rev 3.0, July 2009
WM8523
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