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VCA8500

SBOS390 – JANUARY 2008

Table 1. TERMINAL FUNCTIONS (continued)

TERMINAL

PIN NO.

NAME

I/O

DESCRIPTION

21

OUT2

O

PGA output channel 2 (inverted)

22

OUT2

O

PGA output channel 2

23

OUT1

O

PGA output channel 1 (inverted)

24

OUT1

O

PGA output channel 1

25

OUT5

O

PGA output channel 5 (inverted)

26

OUT5

O

PGA output channel 5

27

OUT6

O

PGA output channel 6 (inverted)

28

OUT6

O

PGA output channel 6

29

OUT7

O

PGA output channel 7 (inverted)

30

OUT7

O

PGA output channel 7

31

OUT8

O

PGA output channel 8 (inverted)

32

OUT8

O

PGA output channel 8

33

AVDD1

+3.3V analog supply

34

VREFL

Clamp level low, 2.0V; bypass with 0.1

µF (min)

35

VREFH

Clamp level high, 2.7V; bypass with 0.1

µF (min)

36

VB4

Internal bias voltage; bypass with 0.1

µF (min)

37

VB6

Internal bias voltage; bypass with 0.1

µF (min)

38

VB2

Internal bias voltage; bypass with 0.1

µF (min)

39

AVDD2

+5V analog supply (VCA, CW)

40

IN8

I

LNA input channel 8

41

VBL8

Internal bias voltage; bypass with 0.1

µF (min)

42

IN7

I

LNA input channel 7

43

VBL7

Internal bias voltage; bypass with 0.1

µF (min)

44

IN6

I

LNA input channel 6

45

VBL6

Internal bias voltage; bypass with 0.1

µF (min)

46

AVDD1

+3.3V analog supply

47

IN5

I

LNA input channel 5

48

VBL5

Internal bias voltage; bypass with 0.1

µF (min)

49

PD

I

Power-down pin for fast mode; active high

50

CW0

O

CW channel 0 current output

51

CW1

O

CW channel 1 current output

52

CW2

O

CW channel 2 current output

53

CW3

O

CW channel 3 current output

54

CW4

O

CW channel 4 current output

55

D_IN

I

Serial data input

56

CLK

I

Clock input for serial interface

57

D_OUT

O

Serial data output

58

RST

I

Reset input; rising edge resets register to default values.

59

DVDD

+3.3V Digital supply; connect to analog supply plane (AVDD1)

60

CW5

CW channel 5 current output

61

CW6

CW channel 6 current output

62

CW7

CW channel 7 current output

63

CW8

CW channel 8 current output

64

CW9

CW channel 9 current output

PowerPAD must be connected to the analog ground of the printed circuit board; use this ground for

—

GND

bypass cap return ground.

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