PRELIMINARY TECHNICAL DATA

AD9430

-8-

4/01/2002 REV. PrG

PIN FUNCTION DESCRIPTIONS (CMOS mode)

CMOS Mode

Pin Number

Name

Function in CMOS Mode

2,7,42,43,65,66,68

DNC

Do not connect

1

S5

Full Scale Adjust pin : ‘1’ sets FS =

3

S4

Interlaced or parallel output mode. (only in Dual Port mode

operation) HIGH = data arrives in channel A at falling edge of clock

and data arrives in channel A at rising edge of clock. LOW = data

arrives in channels A and B at rising edge of clock.

5

S2

Output Mode select. Low = Dual Port, CMOS; High = LVDS

6

S1

Data format select. Low = Binary, High = Two’s compliment

8,14,15,18,19,24,27,28,29,34,

39,40,88,89,90,94,95,98,99

3.3V analog supply. (3.0V to 3.6V)

4,9,12,13,16,17,20,23,25,26,3

0,31,35,38,41,86,87,91,92,93,

96,97,100

AGND

Analog Ground

10

SENSE

Control Pin for Reference , Full Scale

11

VREF

1.235 Reference I/O - function dependent on REFSENSE

21

VIN+

Analog input – true.

22

VIN-

Analog input – compliment.

32

DS+

Data sync (input) – true. Aligns output channels so that data from

channel A represents a sample that is prior from data in channel B,

taking into account the pipeline delay. (See timing diagram). Tie

LOW if not used.

33

DS-

Data sync (input) – compliment. Tie HIGH if not used.

36

ENC+

Clock input – true.

37

ENC-

Clock input – compliment.

44

DB0

B Port Output Data Bit (LSB)

45

DB1

B Port Output Data Bit

46

DB2

B Port Output Data Bit

49

DB3

B Port Output Data Bit

50

DB4

B Port Output Data Bit

51

DB5

B Port Output Data Bit

52

DB6

B Port Output Data Bit

55

DB7

B Port Output Data Bit

56

DB8

B Port Output Data Bit

57

DB9

B Port Output Data Bit

58

DB10

B Port Output Data Bit

59

DB11

B Port Output Data Bit (MSB)

60

OR_B

B Port Overrange

48,53,61,67,74,82

DrGND

Digital ground.

47,54,62,75,83

3.3V digital output supply. (3.0V to 3.6V)

63

DCO-

Data Clock output – compliment.

64

DCO+

Data Clock output – true.

69

DA0

A port Output Data Bit (LSB)

70

DA1

A port Output Data Bit

71

DA2

A port Output Data Bit

72

DA3

A port Output Data Bit

73

DA4

A port Output Data Bit

76

DA5

A port Output Data Bit

77

DA6

A port Output Data Bit

78

DA7

A port Output Data Bit

79

DA8

A port Output Data Bit

80

DA9

A port Output Data Bit

81

DA10

A port Output Data Bit

84

DA11

A port Output Data Bit (MSB)

85

OR_A

A port Overrange