WM8510GEDS/RV Wolfson Microelectronics, WM8510GEDS/RV Datasheet - Page 44

• 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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Table 35 Mono Mixer Control
ENABLING THE OUTPUTS
Each analogue output of the WM8510 can be separately enabled or disabled. The analogue mixer
associated with each output has a separate enable. All outputs are disabled by default. To save
power, unused parts of the WM8510 should remain disabled.
Outputs can be enabled at any time, but it is not recommended to do so when BUFIO is disabled
(BUFIOEN=0), as this may cause pop noise (see “Power Management” and “Applications
Information” sections).
Table 36 Output Stages Power Management Control
UNUSED ANALOGUE INPUTS/OUTPUTS
Whenever an analogue input/output is disabled, it remains connected to a voltage source (either
AVDD/2 or 1.5xAVDD/2 as appropriate) through a resistor. This helps to prevent pop noise when the
output is re-enabled. The resistance between the voltage buffer and the output pins can be controlled
using the VROI control bit. The default impedance is low, so that any capacitors on the outputs can
charge up quickly at start-up. If a high impedance is desired for disabled outputs, VROI can then be
set to 1, increasing the resistance to about 30kΩ.
R56
Mono mixer
control
R40
Bypass path
attenuation
control
R1
Power
management
1
R3
Power
management
3
Note: All “Enable” bits are 1 = ON, 0 = OFF
REGISTER
REGISTER
ADDRESS
ADDRESS
2
8
3
2
3
5
6
7
BIT
BIT
0
1
2
6
2
BUFIOEN
BUFDCOPEN
BIASEN
SPKMIXEN
MONOMIXEN
SPKPEN
SPKNEN
MONOEN
DAC2MONO
BYP2MONO
MIC2_2MONO
MONOMUTE
MONOATTN
LABEL
LABEL
0
0
0
0
0
0
0
0
DEFAULT
DEFAULT
1
0
0
0
0
Unused input/output tie off buffer enable
Output stage 1.5xAVDD/2 driver enable
Analogue amplifiers bias enable
Speaker Mixer enable
Mono mixer enable
SPKOUTP enable
SPKOUTN enable
MONOOUT enable
Output of DAC to mono mixer input
0 = not selected
1 = selected
Bypass path (output of input boost
stage) to mono mixer input
0 = non selected
1 = selected
Output of MIC2 amplifier to mono
mixer input:
0 = not selected
1 = selected
0=No mute
1=Output muted. During mute the
mono output will output VMID which
can be used as a DC reference for a
headphone out.
Attenuation control for bypass path
(output of input boost stage) to mono
mixer input
0 = 0dB
1 = -10dB
PD, Rev 4.5 ,September 2008
DESCRIPTION
DESCRIPTION
Production Data
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