WM8510GEDS/V Wolfson Microelectronics, WM8510GEDS/V Datasheet - Page 46

• Manufacturer Part Number: WM8510GEDS/V
• Description: Audio CODECs VoIP Mono CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8510GEDS/V

• 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
OUTPUT SWITCH
w
When the device is configured with a 2-wire interface the CSB/GPIO pin can be used as a switch
control input to automatically disable the speaker outputs and enable the mono output. For example
when a line is plugged into a jack socket. In this mode, enabled by setting GPIOSEL=001, pin
CSB/GPIO switches between mono and speaker outputs (e.g. when pin 12 is connected to a
mechanical switch in the headphone socket to detect plug-in). The GPIOPOL bit reverses the polarity
of the CSB/GPIO input pin.
Note that the speaker outputs and the mono output must be enabled for this function to work (see
Table 39). The CSB/GPIO pin has an internal de-bounce circuit when in this mode in order to prevent
the output enables from toggling multiple times due to input glitches.
clocked from a slow clock with period 2
Table 39 Output Switch Operation (GPIOSEL=001)
THERMAL SHUTDOWN
The speaker outputs can drive very large currents. To protect the WM8510 from overheating a
thermal shutdown circuit is included. The thermal shutdown can be configured to produce an interrupt
when the device temperature reaches approximately 125
section for details.
Table 40 Thermal Shutdown
SPEAKER OUTPUT
SPKOUTP/N can differentially drive a mono 8Ω Bridge Tied Load (BTL) speaker as shown below.
Figure 22 Speaker Output Connection
R49
Output control
GPIOPOL
REGISTER
ADDRESS
0
0
0
0
1
1
1
1
CSB/GPIO
1
BIT
0
0
1
1
0
0
1
1
TSDEN
LABEL
SPKNEN/
SPKPEN
X
X
X
X
0
1
0
1
21
x MCLK, enabled using the SLOWCLKEN register bit.
1
DEFAULT
MONOEN
X
X
X
X
0
1
0
1
o
C. See the General Purpose Input/Output
Thermal Shutdown Enable
0 : thermal shutdown disabled
1 : thermal shutdown enabled
SPEAKER
ENABLED
Yes
Yes
No
No
No
No
No
No
PD, Rev 4.5 ,September 2008
DESCRIPTION
This debounce circuit is
ENABLED
OUTPUT
MONO
Yes
Yes
No
No
No
No
No
No
Production Data
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