WM8326
BLOCK DIAGRAM
CS
SDA1
SCLK1
SDOUT1
CIFMODE
DC1GND
DC1FB
DC1LX
DC1VDD
DC2GND
DC2FB
DC2LX
DC2VDD
DC4GND
DC4FB
DC4LX
DC4VDD
DC3GND
DC3FB
DC3LX
DC3VDD
IRQ
RESET
Production Data
SDA2
SCLK2
DBVDD
Interrupt and
Reset Controller
Primary Control
Interface
PROGVDD
System
Status
LED
Driver
Instant
Config
TM
EEPROM
Interface
DC-DC1
Buck
0.6 to 1.8V
2.5A
DVS
DC-DC2
Buck
0.6 to 1.8V
2.5A
DVS
DC-DC3
Buck
0.85 to 3.4V
1A
DC-DC4
Buck
0.85 to 3.4V
1A
GND
(Exposed Ground Paddle)
Dual Mode Control
LED1
LED2
Register Map and
Application Processor
Interface
OTP NVM
Bootstrap
Config &
Unique ID
References
VREFC
IREFR
LDO 1
Standard LDO
0.9 to 3.3V 300mA
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
Multi-
Function Pin
(GPIO)
Controller
Power
Management
Control
1 to 4MHz
RC
Oscillator
WM8326
LDO 2
Standard LDO
0.9 to 3.3V 200mA
LDO 3
Standard LDO
0.9 to 3.3V 200mA
LDO1VOUT
LDO1_2VDD
LDO2VOUT
LDO3VDD
LDO3VOUT
LDO4VDD
LDO4VOUT
LDO5VDD
LDO5VOUT
LDO6VDD
LDO6VOUT
LDO7VOUT
LDO7_8VDD
LDO8VOUT
LDO9VOUT
LDO9_10VDD
LDO10VOUT
LDO11VOUT
LDO12VOUT
(Backup Battery Connection)
LDO13VOUT
`
PM Sub-
System
Monitoring
LDO 4
Standard LDO
0.9 to 3.3V 100mA
LDO 5
Standard LDO
0.9 to 3.3V 100mA
LDO 6
Standard LDO
0.9 to 3.3V 100mA
ON
AP Interface, GPIOs and PM Control
LDO 7
Analogue LDO
1.0 to 3.5V 200mA
LDO 8
Analogue LDO
1.0 to 3.5V 200mA
GPIO10
GPIO11
GPIO12
CHIP temperature
XTO
XTI
XOSCGND
CLKOUT
TEST
(test function only)
Clocking and Auxiliary ADC Functions
LDO 9
Analogue LDO
1.0 to 3.5V 150mA
Aux
ADC
LDO 10
Analogue LDO
1.0 to 3.5V 150mA
LDO 11
Alive LDO
0.8 to 1.55V 25mA
Real-Time
Clock
Wake-Up
Timer
LDO 12
Internal LDO
2.1V 2mA
LDO 13
Internal LDO
2.5V 20mA
Internal Power Source
Management
Power Management
32.768kHz
Oscillator
PVDD
w
PD, June 2012, Rev 4.0
2
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
