AD9874EB datasheet(6/40 Pages) AD

Numer części	AD9874EB

Szczegółowy opis	IF Digitizing Subsystem

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Producent	AD [Analog Devices]

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REV. A

AD9874

–6–

PIN CONFIGURATION

36

35

34

33

32

31

30

29

28

27

26

25

1

2

3

4

5

6

7

8

9

10

11

12

48 47 46 45 44

39 38 37

43

PIN 1

IDENTIFIER

TOP VIEW

(Not to Scale)

GNDL

FREF

GNDS

SYNCB

GNDH

FS

DOUTB

MXOP

MXON

GNDF

IF2N

IF2P

VDDF

GCP

GCN

VDDA

GNDA

VREFP

DOUTA

CLKOUT

VDDH

VDDD

AD9874

VREFN

PE

40

41

42

13

19

18

17

16

15

14

20 21 22 23 24

PIN FUNCTION DESCRIPTIONS

Mnemonic

Description

1

MXOP

Mixer Output, Positive.

2MXON

Mixer Output, Negative.

3

GNDF

Ground for Front End of ADC.

4IF2N

Second IF Input (to ADC), Negative.

5

IF2P

Second IF Input (to ADC), Positive.

6

VDDF

Positive Power Supply for Front End of ADC.

7

GCP

Filter Capacitor for ADC Full-Scale Control.

8

GCN

Full-Scale Control Ground.

9

VDDA

Positive Power Supply for ADC Back End.

10

GNDA

Ground for ADC Back End.

11

VREFP

Voltage Reference, Positive.

12

VREFN

Voltage Reference, Negative.

13

RREF

Reference Resistor: Requires 100 k

Ω to

GNDA.

14

VDDQ

Positive Power Supply for Clock Synthesizer.

15

IOUTC

Clock Synthesizer Charge Pump Output

Current.

16

GNDQ

Ground for Clock Synthesizer Charge

Pump.

17

VDDC

Positive Power Supply for Clock Synthesizer.

18

GNDC

Ground for Clock Synthesizer.

19

CLKP

Sampling Clock Input/Clock VCO Tank,

Positive.

20

CLKN

Sampling Clock Input/Clock VCO Tank,

Negative.

21

GNDS

Substrate Ground.

22

GNDD

Ground for Digital Functions.

23

PC

Clock Input for SPI Port.

24

PD

Data I/O for SPI Port.

25

PE

Enable Input for SPI Port.

26

VDDD

Positive Power Supply for Internal Digital

Function.

27

VDDH

Positive Power Supply for Digital Interface.

28

CLKOUT

Clock Output for SSI Port.

29

DOUTA

Data Output for SSI Port.

30

DOUTB

Data Output for SSI Port (Inverted) or

SPI Port.

31

FS

Frame Sync for SSI Port.

32

GNDH

Ground for Digital Interface.

33

SYNCB

Resets SSI and Decimator Counters;

Active Low.

34

GNDS

Substrate Ground.

35

FREF

Reference Frequency Input for Both

Synthesizers.

36

GNDL

Ground for LO Synthesizer.

37

GNDP

Ground for LO Synthesizer Charge Pump.

38

IOUTL

LO Synthesizer Charge Pump Output

Current Charge Pump.

39

VDDP

Positive Power Supply for LO Synthesizer

Charge Pump.

40

VDDL

Positive Power Supply for LO Synthesizer.

41

CXVM

External Filter Capacitor; DC Output of

LNA.

42

LON

LO Input to Mixer and LO Synthesizer,

Negative.

43

LOP

LO Input to Mixer and LO Synthesizer,

Positive.

44

CXVL

External Bypass Capacitor for LNA Power

Supply.

45

GNDI

Ground for Mixer and LNA.

46

CXIF

External Capacitor for Mixer V-I Con-

verter Bias.

47

IFIN

First IF Input (to LNA).

48

VDDI

Positive Power Supply for LNA and Mixer.

Mnemonic

Description

Podobny numer części - AD9874EB

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	AD9874EB	744Kb / 40P	IF Digitizing Subsystem REV. 0
	AD9874EB	580Kb / 40P	IF Digitizing Subsystem REV. A
	AD9874EB	580Kb / 40P	IF Digitizing Subsystem REV. A
	AD9874EB	710Kb / 41P	IF Digitizing Subsystem

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Podobny opis - AD9874EB

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	AD9864	1Mb / 44P	IF Digitizing Subsystem REV. 0
	AD9870	233Kb / 20P	IF Digitizing Subsystem REV. 0
	AD9874	710Kb / 41P	IF Digitizing Subsystem
	AD9870	226Kb / 20P	IF Digitizing Subsystem REV. 0
	AD9864	944Kb / 44P	IF Digitizing Subsystem REV. 0
	AD9864	1Mb / 48P	IF Digitizing Subsystem
	AD9874	744Kb / 40P	IF Digitizing Subsystem REV. 0
	AD9874	580Kb / 40P	IF Digitizing Subsystem REV. A
	AD9874ABSTZ	580Kb / 40P	IF Digitizing Subsystem REV. A
	AD9874-EB	580Kb / 40P	IF Digitizing Subsystem REV. A

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