WM8510GEDS/RV Wolfson Microelectronics, WM8510GEDS/RV Datasheet - Page 38

• Manufacturer Part Number: WM8510GEDS/RV
• Description: Audio CODECs VolP MONO CODEC 28-pin
• Manufacturer: Wolfson Microelectronics

Specifications of WM8510GEDS/RV

• Operating Supply Voltage: - 0.3 V to + 7 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8510
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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.
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.
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
R10
DAC Control
R10
DAC Control
REGISTER
REGISTER
ADDRESS
ADDRESS
BIT
BIT
6
2
DACMU
AMUTE
LABEL
LABEL
0
0
DEFAULT
DEFAULT
0 = DACMU disabled
1 = DACMU enabled
DAC auto mute enable
0 = auto mute disabled
1 = auto mute enabled
DAC soft mute enable
PD, Rev 4.5 ,September 2008
DESCRIPTION
DESCRIPTION
Production Data
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