Audio CODECs VoIP Mono CODEC

WM8510GEDS/V

Manufacturer Part NumberWM8510GEDS/V
DescriptionAudio CODECs VoIP Mono CODEC
ManufacturerWolfson Microelectronics
WM8510GEDS/V datasheet
 


Specifications of WM8510GEDS/V

Operating Supply Voltage- 0.3 V to + 7 VMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMTPackage / CaseSSOP-28
Minimum Operating Temperature- 25 CLead Free Status / RoHS StatusLead free / RoHS Compliant
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WM8510
The WM8510 also has a Soft Mute function, which gradually attenuates the volume of the digital
signal to zero. When removed, the gain will ramp back up to the digital gain setting. This function is
enabled by default. To play back an audio signal, it must first be disabled by setting the DACMU bit
to zero.
REGISTER
ADDRESS
R10
DAC Control
Table 26 DAC Control Register
The digital audio data is converted to oversampled bit streams in the on-chip, true 24-bit digital
interpolation filters. The bitstream data enters a multi-bit, sigma-delta DAC, which converts it to a
high quality analogue audio signal. The multi-bit DAC architecture reduces high frequency noise and
sensitivity to clock jitter.
The DAC output defaults to non-inverted. Setting DACPOL will invert the DAC output phase.
AUTOMUTE
The DAC has an automute function which applies an analogue mute when 1024 consecutive zeros
are detected. The mute is release as soon as a non-zero sample is detected. Automute can be
disabled using the AMUTE control bit.
REGISTER
ADDRESS
R10
DAC Control
Table 27 DAC Auto Mute Control Register
DAC OUTPUT LIMITER
The WM8510 has a digital output limiter function. The operation of this is shown in Figure 19. In this
diagram the upper graph shows the envelope of the input/output signals and the lower graph shows
the gain characteristic.
Figure 19 DAC Digital Limiter Operation
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BIT
LABEL
DEFAULT
6
DACMU
0
BIT
LABEL
DEFAULT
2
AMUTE
0
Production Data
DESCRIPTION
DAC soft mute enable
0 = DACMU disabled
1 = DACMU enabled
DESCRIPTION
DAC auto mute enable
0 = auto mute disabled
1 = auto mute enabled
PD, Rev 4.5 ,September 2008
38