33970 Datasheet, PDF (2/36 Pages) Freescale Semiconductor, Inc – Dual Gauge Driver Integrated Circuit with Improved Damping Algorithms

INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
VDD
VPWR
CS
SCLK
SO
SPI
SI
INTERNAL
REGULATOR
COS0
SIN0
COS1
RST
LOGIC
UNDER-
AND
OVERVOLTAGE
DETECT
STATE
MACHINE
ILIM
H-BRIDGE
AND
CONTROL
OVERTEMPERATURE
DETECT
SIN1
OSCILLATOR
SIGMA-DELTA
ADC
AGND
MULTIPLEXER
COS0+
COS0-
SIN0+
SIN0-
COS1+
COS1-
SIN1+
SIN1-
VDD
RTZ
GND (8)
Figure 2. 33970 Simplified Internal Block Diagram
33970
2
Analog Integrated Circuit Device Data
Freescale Semiconductor