DEVICE INFORMATION

13 14 15

NC

NC

DB0 (LSB)

DB1

DB2

DB3

DB4

DB5

DB6

DB7

DB8

DB9

36

35

34

33

32

31

30

29

28

27

26

25

16

1

2

3

4

5

6

7

8

9

10

11

12

DA11 (MSB)

DA10

DA9

DA8

DA7

DA6

DA5

DA4

DA3

DA2

DA1

DA0 (LSB)

17 18 19 20

47 46 45 44 43

48

42

40 39 38

41

21 22 23 24

37

Top View

48−Pin TQFP

PFB Package

DAC5662

The DAC5662 has been specifically designed for a differential transformer coupled output with a 50-

Ω doubly

terminated load. For a 20-mA full-scale output current a 4:1 impedance ratio (resulting in an output power of

4 dBm) and 1:1 impedance ratio transformer (-2 dBm output power) are supported.

The DAC5662 is available in a 48-pin thin quad FlatPack (TQFP). Pin compatibility between family members

provides 12-bit (DAC5662) and 14-bit (DAC5672) resolution. Furthermore, the DAC5662 is pin compatible to the

DAC2902 and AD9765 dual DACs. The device is characterized for operation over the industrial temperature

range of -40°C to 85°C.

AVAILABLE OPTIONS

PACKAGED DEVICES

48-TQFP

DAC5662IPFB

-40°C to 85°C

DAC5662IPFBR

TERMINAL FUNCTIONS

TERMINAL

I/O

DESCRIPTION

NAME

NO.

AGND

38

I

Analog ground

AVDD

47

I

Analog supply voltage

BIASJ_A

44

O

Full-scale output current bias for DACA

BIASJ_B

41

O

Full-scale output current bias for DACB

CLKA/CLKIQ

18

I

Clock input for DACA, CLKIQ in interleaved mode.

CLKB/RESETI

19

I

Clock input for DACB, RESETIQ in interleaved mode.

Q

DA[11:0]

1-12

I

Data port A. DA11 is MSB and DA0 is LSB. Internal pulldown.

DB[11:0]

23-34

I

Data port B. DB11 is MSB and DB0 is LSB. Internal pulldown.

2

Submit Documentation Feedback

Copyright © 2004–2007, Texas Instruments Incorporated