REV. A

–10–

AD53522

Pin Number

Mnemonic

Description

13

GND_ROT

Analog Ground.

16

DR_GND2

Analog Ground.

19

VLDCPL2

Internal Supply Decoupling for the Driver Output Stage of Channel 2. This pin needs to be connected to

20

OUT2

Input/Output for the Driver, Window Comparator, Reflection Clamp, and Active Load of Channel 2

21

VHDCPL2

Internal Supply Decoupling for the Driver Output Stage of Channel 2. This pin needs to be connected to

22

VCL2

Analog Input Voltage that Sets the Reflection Clamp Low Level of Channel 2

23

VCH2

Analog Input Voltage that Sets the Reflection Clamp High Level of Channel 2

24

IOXRTN2

Current Return Path for the Active Load for Channel 2. Typically connected to a power ground.

25

PROT_HI2

Channel 2, Output Voltage Sensing Diode.

26

PROT_LO2

Channel 2, Output Voltage Sensing Diode.

29

VCOM_S2

Analog Output Voltage that Represents a Buffered VCOM1 Input

30

THERMSTART Temperature Sensor Startup Pin. Normally not connected.

31

IOLC2

Analog Input Voltage that Programs the Channel 2 Active Load Source Current.

32

IOHC2

Analog Input Voltage that Programs the Channel 2 Active Load Sink Current.

33

HQGND

Clean Analog Ground for the Active Load for Channel 2.

34

INHL2

One of Two Complementary Inputs that Control the Inhibit Mode for the Active Load Bridge of Channel 2.

35

INHLB2

One of Two Complementary Inputs that Control the Inhibit Mode for the Active Load Bridge of Channel 2.

36, 54, 55,

Negative Supply Terminal.

71, 72, 90

37, 52, 53,

Positive Supply Terminal.

73, 74, 89

39

RLD2

One of Two Complementary Inputs that Control, in Conjunction with IOD2 and IODB2, the Operating

Mode of the Channel 2 Driver. Refer to Table I for specific conditions.

40

IOD2

One of Two Complementary Inputs that Control, in Conjunction with RLD2 and RLDB2, the Operating

Mode of the Channel 2 Driver. Refer to Table I for specific conditions.

41

IODB2

One of Two Complementary Inputs that Control, in Conjunction with RLD2 and RLDB2, the Operating

Mode of the Channel 2 Driver. Refer to Table I for specific conditions.

42

DATA2

One of Two Complementary Inputs that Determine the High and Low State of the Channel 2 Driver.

Driver output is high for DATA2 > DATAB2. Refer to Table I for specific conditions.

43

DATAB2

One of Two Complementary Inputs that Determine the High and Low State of the Channel 2 Driver.

Driver output is high for DATA2 > DATAB2. Refer to Table I for specific conditions.

46

VCOM2

Analog Input Voltage that Establishes the Commutation Voltage for the Active Load Diode Bridge for Channel 2.

47

VH2

Analog Input Voltage that Sets the Logic 1 Level of the Driver Output Limit for Channel 2. Determines

the driver output for DATA2 > DATAB2.

48

VTERM2

Analog Input Voltage that Set the Termination Voltage Level of the Channel 2 Driver when in VTERM Mode.

49

VL2

Analog Input Voltage that Set the Logic 0 Level of the Driver Output Limit for Channel 2. Determines

the driver output for DATAB2 > DATA2.

50

HCOMP2

Analog Input Voltage that Sets the Logic 1 Compare Reference for the Window Comparator of Channel 2.

51

LCOMP2

Analog Input Voltage that Sets the Logic 0 Compare Reference for the Window Comparator of Channel 2.

56

QH2

One of Two Complementary Outputs for the Logic 1 Window Comparator of Channel 1.

57

QHB2

One of Two Complementary Outputs for the Logic 1 Window Comparator of Channel 1.

58

VCCO2

Input Supply Voltage for QH2, QHB2, QL2, and QLB2 Signals and Reference Voltage for DATA2, DATAB2,

IOD2, IODB2, RLD2, and RLDB2.

59

QLB2

One of Two Complementary Outputs for the Logic 0 Window Comparator of Channel 2.