Datasheet
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SBAS253E − MAY 2003 − REVISED JULY 2006
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7
1.7 PIN FUNCTIONS
TQFP Package
SIGNAL PIN NUMBER TYPE DESCRIPTION
ANALOG SIGNALS
Analog Input Signals of Position Sensors
A1p 2 Analog In Position Sensor 1, Analog Input of SIN, Positive Input
A1n 1 Analog In Position Sensor 1, Analog Input of SIN, Negative Input
B1p 24 Analog In Position Sensor 1, Analog Input of COS, Positive Input
B1n 25 Analog In Position Sensor 1, Analog Input of COS, Negative Input
AXp 7 Analog In Position Sensor X, Asynchronous Analog Input of SIN, Positive Input
AXn 6 Analog In Position Sensor X, Asynchronous Analog Input of SIN, Negative Input
A2p 100 Analog In Position Sensor 2, Analog Input of SIN, Positive Input
A2n 99 Analog In Position Sensor 2, Analog Input of SIN, Negative Input
B2p 26 Analog In Position Sensor 2, Analog Input of COS, Positive Input
B2n 27 Analog In Position Sensor 2, Analog Input of COS, Negative Input
BXp 19 Analog In Position Sensor X, Asynchronous Analog Input of COS, Positive Input
BXn 20 Analog In Position Sensor X, Asynchronous Analog Input of COS, Negative Input
Counter Signals of Position Sensors
A1 91 Digital Out Sign of SIN Signal, Position Sensor 1
B1 38 Digital Out Sign of COS Signal, Position Sensor 1
A2 89 Digital Out Sign of SIN Signal, Position Sensor 2
B2 40 Digital Out Sign of COS Signal, Position Sensor 2
CNTA1 90 Digital In Input Signal SIN to 16-bit Up/Down Counter 1
CNTB1 88 Digital In Input Signal COS to 16-bit Up/Down Counter 1
CNTA2 39 Digital In Input Signal SIN to 16-bit Up/Down Counter 2
CNTB2 41 Digital In Input Signal COS to 16-bit Up/Down Counter 2
Analog Input Signals of Phase Currents
IUp 4 Analog In Phase U Current, Positive Input
IUn 3 Analog In Phase U Current, Negative Input
IVp 22 Analog In Phase V Current, Positive Input
IVn 23 Analog In Phase V Current, Negative Input
IWp 17 Analog In Phase W Current, Positive Input
IWn 16 Analog In Phase W Current, Negative Input