DAC5687MPZPEP datasheet(9/75 Pages) TI1

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ELECTRICAL CHARACTERISTICS

(1)

DAC5687-EP

SGLS333 – JUNE 2006

over recommended operating free-air temperature range, AVDD = 3.3 V, CLKVDD = 3.3 V, PLLVDD = 0 V (= 3.3 V for PLL

Clock Mode), IOVDD = 3.3 V, DVDD = 1.8 V, IOUT

FS = 19.2 mA, External Clock Mode, 4:1 transformer output termination,

50-

Ω doubly terminated load (unless otherwise noted)

AC SPECIFICATIONS

PARAMETER

TEST CONDITIONS

MIN

TYP MAX

UNIT

ANALOG OUTPUT

fCLK

Maximum output update rate

500

MSPS

ts(DAC)

Output settling time to 0.1%

Transition: Code 0x0000 to 0xFFFF

10.4

tpd

Output propagation delay

tr(IOUT)

Output rise time 10% to 90%

tf(IOUT)

Output fall time 90% to 10%

AC PERFORMANCE

X2, PLL off, CLK2 = 250 MHz, DAC A and DAC B on,

IF = 5.1 MHz, First Nyquist Zone < fDATA/2

X4, PLL off, CLK2 = 500 MHz, DAC A and DAC B on,

SFDR

Spurious free dynamic range(2)

IF = 5.1 MHz, First Nyquist Zone < fDATA/2

dBc

X4, CLK2 = 500 MHz, DAC A and DAC B on,

IF = 20.1 MHz, PLL on for Min, PLL off for TYP,

68(3)

First Nyquist Zone < fDATA/2

X4, PLL off, CLK2 = 500 MSPS, DAC A and DAC B on,

Single tone, 0 dBFS, IF = 20.1 MHz

X4 CMIX, PLL off, CLK2 = 500 MSPS,

DAC A and DAC B on, IF = 70.1 MHz

X4 CMIX, PLL off, CLK2 = 500 MSPS,

DAC A and DAC B on, Single tone, 0 dBFS,

SNR

Signal-to-noise ratio

IF = 150.1 MHz

dBc

X4 FMIX CMIX, PLL off, CLK2 = 500 MSPS,

DAC A and DAC B on, Single tone, 0 dBFS,

IF = 180.1 MHz

X4, PLL off, CLK2 = 500 MSPS, DAC A and DAC B on,

Four tone, each –12 dBFS,

IF = 24.7, 24.9, 25.1, 25.3 MHz

X4, PLL off, CLK2 = 500 MSPS, DAC A and DAC B on,

IF = 20.1 and 21.1 MHz

X4 CMIX, PLL off, CLK2 = 500 MSPS,

Third-order two-tone

DAC A and DAC B on, IF = 70.1 and 71.1 MHz

IMD3

intermodulation (each tone at

dBc

X4 CMIX, PLL off, CLK2 = 500 MSPS,

–6 dBFS)

DAC A and DAC B on, IF = 150.1 and 151.1 MHz

X4 FMIX CMIX, PLL off, CLK2 = 500 MSPS,

DAC A and DAC B on, IF = 180.1 and 181.1 MHz

Four-tone intermodulation to

X4 CMIX, CLK2 = 500 MHz

IMD

dBc

Nyquist (each tone at –12 dBFS)

fOUT = 149.2, 149.6, 150.4, and 150.8 MHz

(1)

Measured single ended into 50-

Ω load.

(2)

See the Non-Harmonic Clock Related Spurious Signals section for information on spurious products out of band (< fDATA/2).

(3)

1:1 transformer output termination.

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