LTC2000 datasheet(15/54 Pages) AD

15 / 54 page

LTC2000

2000fb

For more information www.linear.com/LTC2000

TYPICAL PERFORMANCE CHARACTERISTICS I

OUTFS = 40mA, TA = 25°C, AVDD18 = DVDD18 = 1.8V,

AVDD33 = DVDD33 = 3.3V, RLOAD = 12.5Ω, LIN_DIS = 0, LIN_ GN = 75% unless otherwise noted.

LTC2000-16 Single Carrier WCDMA

ACLR vs fOUT, fDAC = 2.5Gsps

LTC2000-16 Single Carrier WCDMA

ACLR at 350MHz, fDAC = 2.5Gsps

Additive Phase Noise,

fOUT = 65MHz, fDAC = 2.5Gsps

LTC2000-14 Differential

Nonlinearity (DNL)

LTC2000-14 Single-Tone NSD

vs fOUT and fDAC

LTC2000-14 Integral Nonlinearity

(INL)

fOUT (MHz)

–90

–80

–70

–60

–50

200

400

600

800

2000 G46

1000

1200

ADJ CHANNEL

2ND ADJ CHANNEL

5TH ADJ CHANNEL

FREQUENCY (MHz)

CARRIER POWER = –17.06dBm, CENTER FREQ = 350MHz

323

–60

–40

363

2000 G47

–80

–100

–70

–50

–30

–90

–110

–120

–130

333

343

353

373

OFFSET FREQ

5.00MHz

10.00MHz

15.00MHz

20.00MHz

25.00MHz

3.84MHz

LOWER

–94.15dBm

–95.61dBm

–95.72dBm

–96.97dBm

–96.07dBm

UPPER

–94.40dBm

–94.99dBm

–95.55dBm

–96.37dBm

–96.50dBm

RBW = 30kHz

VBW = 3kHz

REF = –20dBm

ATTEN = 5dB

SWEEP = 24s

OFFSET FREQUENCY (kHz)

–160

–150

–130

–110

–100

0.01

1000

2000 G48

–170

0.1

100

–120

–140

–180

CODE

–8192

8192

2000 G49

–1

–2

–4096

4096

fOUT (MHz)

–170

–165

–160

–155

–150

–145

200

400

600

800

2000 G51

1000 1200

2.5Gsps

1.25Gsps

DIGITAL AMPLITUDE = 0dBFS

40mA FULL-SCALE CURRENT

0dBm SINGLE TONE

CODE

–8192

0.5

8192

2000 G50

–0.5

–1.0

–4096

4096

1.0

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