ADT7463
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2
Figure 1. Functional Block Diagram
ADT7463
PWM REGISTERS
AND
CONTROLLERS
ACOUSTIC
ENHANCEMENT
CONTROL
FAN SPEED
COUNTER
PERFORMANCE
MONITORING
THERMAL
PROTECTION
INPUT
SIGNAL
CONDITIONING
AND
ANALOG
MULTIPLEXER
BAND GAP
TEMP. SENSOR
V
CC
TO ADT7463
10BIT
ADC
BAND GAP
REFERENCE
SMBUS
ADDRESS
SELECTION
SERIAL BUS
INTERFACE
AUTOMATIC
FAN SPEED
CONTROL
DYNAMIC
T
MIN
CONTROL
ADDRESS
POINTER
REGISTER
PWM
CONFIGURATION
REGISTERS
INTERRUPT
MASKING
INTERRUPT
STATUS
REGISTERS
VALUE AND
LIMIT
REGISTERS
LIMIT
COMPARATORS
GND
ADDR
SELECT ADDR EN
SCL SDA SMBALERT
PWM1
PWM2
PWM3
TACH1
TACH2
TACH3
TACH4
THERM
V
CC
D1+
D1
D2+
D2
+5V
IN
VID
REGISTER
+12V
IN
+2.5V
IN
V
CCP
V
CC
VID0
VID1
VID2
VID3
VID4
VID5