AD9709 데이터 시트보기 (PDF) - Analog Devices

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AD9709

8-Bit, 125 MSPS, Dual TxDAC+ Digital-to-Analog Converter

Analog Devices 

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

48 47 46 45 44 43 42 41 40 39 38 37

DB7P1 (MSB) 1

DB6P1 2

DB5P1 3

DB4P1 4

DB3P1 5

DB2P1 6

DB1P1 7

DB0P1 8

NC 9

NC 10

NC 11

NC 12

PIN 1

INDICATOR

AD9709

TOP VIEW

(Not to Scale)

36 NC

35 NC

34 NC

33 NC

32 NC

31 NC

30 DB0P2 (LSB)

29 DB1P2

28 DB2P2

27 DB3P2

26 DB4P2

25 DB5P2

13 14 15 16 17 18 19 20 21 22 23 24

NC = NO CONNECT

Table 6. Pin Function Descriptions

Pin No.

Mnemonic

1 to 8

DB7P1 to DB0P1

9 to 14, 31 to 36 NC

15, 21

DCOM1, DCOM2

16, 22

DVDD1, DVDD2

17

WRT1/IQWRT

18

CLK1/IQCLK

19

CLK2/IQRESET

20

WRT2/IQSEL

23 to 30

DB7P2 to DB0P2

37

SLEEP

38

ACOM

39, 40

IOUTA2, IOUTB2

41

FSADJ2

42

GAINCTRL

43

REFIO

44

FSADJ1

45, 46

IOUTB1, IOUTA1

47

AVDD

48

MODE

Figure 3. Pin Configuration

Description

Data Bit Pins (Port 1)

No Connection

Digital Common

Digital Supply Voltage

Input Write Signal for Port 1 (IQWRT in Interleaving Mode)

Clock Input for DAC1 (IQCLK in Interleaving Mode)

Clock Input for DAC2 (IQRESET in Interleaving Mode)

Input Write Signal for Port 2 (IQSEL in Interleaving Mode)

Data Bit Pins (Port 2)

Power-Down Control Input

Analog Common

Port 2 Differential DAC Current Outputs

Full-Scale Current Output Adjust for DAC2

Master/Slave Resistor Control Mode.

Reference Input/Output

Full-Scale Current Output Adjust for DAC1

Port 1 Differential DAC Current Outputs

Analog Supply Voltage

Mode Select (1 = dual port, 0 = interleaved)

AD9709

Rev. B | Page 7 of 32

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