DAC3482 datasheet(5/79 Pages) TI1

5 / 79 page

DAC3482

www.ti.com

SLAS748A

– MARCH 2011 – REVISED JUNE 2011

PIN FUNCTIONS (continued)

I/O

DESCRIPTION

NAME

NO.

Uni-directional serial interface data in 4-pin mode. The SDO pin is tri-stated in 3-pin interface mode

SDO

B27

(default).

SLEEP

B40

Active high asynchronous hardware power-down input. Internal pull-down.

Optional LVDS SYNC positive input. The SYNCP/N LVDS pair has an internal 100

Ω termination

SYNCP

resistor. If unused it can be left unconnected.

SYNCN

Optional LVDS SYNC negative input.

Active low input for chip RESET, which resets all the programming registers to their default state.

RESETB

B30

Internal pull-up.

Transmit enable active high input. Internal pull-down.

To enable analog output data transmission, set sif_txenable in register config3 to

“1” or pull CMOS

TXENABLE

A32

TXENABLE pin to high.

To disable analog output, set sif_txenable to

“0” and pull CMOS TXENABLE pin to low. The digital

logic section is forced to all 0, and any input data is ignored.

TESTMODE

A44

This pin is used for factory testing. Internal pull-down. Leave unconnected for normal operation.

Digital supply voltage. This supply pin is also used for factory fuse programming. Connect to

VFUSE

DACVDD for normal operation.

ORDERING INFORMATION(1)

ORDER CODE

PACKAGE DRAWING/TYPE(2)(3)

TRANSPORT MEDIA

QUANTITY

DAC3482IRKDT

250

–40°C to 85°C

RKD / 88 WQFN Quad Flatpack No-Lead

Tape and Reel

DAC3482IRKDR

2000

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or visit the

device product folder at www.ti.com.

(2)

Thermal Pad Size: 6.4 mm x 6.4 mm

(3)

MSL Peak Temperature: Level-3-260C-168 HR

ABSOLUTE MAXIMUM RATINGS

over operating free-air temperature range (unless otherwise noted)

(1)

VALUE

UNIT

MIN

MAX

DACVDD, DIGVDD, CLKVDD

–0.5

1.5

VFUSE

–0.5

1.5

Supply voltage

range(2)

IOVDD

–0.5

AVDD, PLLAVDD

–0.5

D[15..0]P/N, DATACLKP/N, FRAMEP/N, PARITYP/N, SYNCP/N

–0.5

IOVDD + 0.5

DACCLKP/N, OSTRP/N

–0.5

CLKVDD + 0.5

ALARM, SDO, SDIO, SCLK, SDENB, SLEEP, RESETB, TESTMODE,

–0.5

IOVDD + 0.5

TXENABLE

Pin voltage range(2)

IOUTIP/N, IOUTQP/N

–1.0

AVDD + 0.5

EXTIO, BIASJ

–0.5

AVDD + 0.5

LPF

0.5

PLLAVDD+0.5V

Peak input current (any input)

Peak total input current (all inputs)

–30

Operating free-air temperature range, TA: DAC3482

–40

°C

Storage temperature range

–65

150

°C

(1)

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only and functional operation of these or any other conditions beyond those indicated under

“recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

Measured with respect to GND.

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