Production Data
WM8352
16.3 OPEN-DRAIN LED OUTPUTS
The three open-drain outputs ISINKC, ISINKD and ISINKE are alternate functions of the GPIO10,
GPIO11 and GPIO12 pins, respectively (see Section 20). They can drive LEDs connected to LINE,
with a series resistor. Note that the GPIO pins have other alternate functions, which will not be
available that pin is configured as ISINKC, ISINKD or ISINKE.
16.4 LED DRIVER CONNECTIONS
The recommended connections for LEDs on ISINKA and ISINKB are illustrated in Figure 72.
VDD
WM8352
ISINKA
SINKGND
Figure 72 LED Connections to ISINKA and ISINKB
The recommended connections for LEDs on ISINKC, ISINKD and ISINKE are illustrated in Figure 73.
Figure 73 LED Connections to ISINKC, ISINKD and ISINKE
PD, February 2011, Rev 4.4
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
