WM2148CFT/V 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM2148CFT/V

14-bit 8MSPS Analogue-To-Digital Converter

Wolfson Microelectronics plc 

Production Data

PIN

NAME

27

D2

28

D1

29

D0

30

DVDDLOGIC

31

DVDDCLK

32

CLK

33

DGNDCLK

34

DGNDCTRL

35

OEB

36

WRB

37

CSB

38

NC

39

NC

40

A1

41

A0

42

DVDDCTRL

43

AVDD1

44

AGND1

45

AVSUB

46

AGND2

47

AVDD2

48

IN+

TYPE

Digital I/O

Digital I/O

Digital I/O

Supply

Supply

Digital Input

Supply

Supply

Digital Input

Digital Input

Digital Input

Test Output

Test Output

Digital Input

Digital Input

Supply

Supply

Supply

Substrate

Supply

Supply

Analogue Input

DESCRIPTION

Data Bit 2

Data Bit 1

Data Bit 0

Positive Supply Voltage for Logic Block

Positive Supply Voltage for Clock

Sample Clock

Ground for Clock

Ground for Control Pins

Output Enable (active low)

Write Signal (active low)

Chip Select (active low)

This pin must be left unconnected

This pin must be left unconnected

Address Bit 1

Address Bit 0

Positive Supply for Control Pins

Positive Supply for ADC

Ground for ADC

ADC substrate

Positive Supply for ADC Op-amps

Ground for ADC Op-amps

Positive Differential Analogue Input

WM2148

Note:

1. It is recommended that each pair of supply pins, especially the analogue supplies, have a separate decoupling

capacitor. The most critical are pins 46 and 47. The ADC substrate (pin 45) should be as noise free as possible.

WOLFSON MICROELECTRONICS LTD

PD Rev 1.1 February 2001

3

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