ADC08D1000EVAL datasheet(5/31 Pages) NSC

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Pin Descriptions and Equivalent Circuits (Continued)

Pin Functions

Pin No.

Symbol

Equivalent Circuit

Description

83/78

84/77

85/76

86/75

89/72

90/71

91/70

92/69

93/68

94/67

95/66

96/65

100/61

101/60

102/59

103/58

DI7− / DQ7−

DI7+ / DQ7+

DI6− / DQ6−

DI6+ / DQ6+

DI5− / DQ5−

DI5+ / DQ5+

DI4− / DQ4−

DI4+ / DQ4+

DI3− / DQ3−

DI3+ / DQ3+

DI2− / DQ2−

DI2+ / DQ2+

DI1− / DQ1−

DI1+ / DQ1+

DI0− / DQ0−

DI0+ / DQ0+

I and Q channel LVDS Data Outputs that are not delayed in

the output demultiplexer. Compared with the DId and DQd

outputs, these outputs represent the later time samples.

These outputs should always be terminated with a 100

Ω

differential resistor.

104/57

105/56

106/55

107/54

111/50

112/49

113/48

114/47

115/46

116/45

117/44

118/43

122/39

123/38

124/37

125/36

DId7− / DQd7−

DId7+ / DQd7+

DId6− / DQd6−

DId6+ / DQd6+

DId5− / DQd5−

DId5+ / DQd5+

DId4− / DQd4−

DId4+ / DQd4+

DId3− / DQd3−

DId3+ / DQd3+

DId2− / DQd2−

DId2+ / DQd2+

DId1− / DQd1−

DId1+ / DQd1+

DId0− / DQd0−

DId0+ / DQd0+

I and Q channel LVDS Data Outputs that are delayed by one

CLK cycle in the output demultiplexer. Compared with the

DI/DQ outputs, these outputs represent the earlier time

sample. These outputs should always be terminated with a

100

Ω differential resistor.

OR+

OR-

Out Of Range output. A differential high at these pins

indicates that the differential input is out of range (outside the

range ±300 mV or ±400 mV as defined by the FSR pin).

DCLK+

DCLK-

Differential Clock outputs used to latch the output data.

Delayed and non-delayed data outputs are supplied

synchronous to this signal. This signal is at 1/2 the input clock

rate in SDR mode and at 1/4 the input clock rate in the DDR

mode.

2, 5, 8,

13, 16,

17, 20,

25, 28,

33, 128

Analog power supply pins. Bypass these pins to ground.

ADC08D1000EVAL Datasheet(PDF) 5 Page - National Semiconductor (TI)

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