AD9856 データシートの表示（PDF） - Analog Devices

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AD9856

CMOS 200 MHz Quadrature Digital Upconverter

Analog Devices 

AD9856

TYPICAL NARROW-BAND SFDR SPECTRAL PLOTS

REF LVL

–5dBm

0

–10

RBW 100Hz

VBW 100Hz

SWT 50s

RF ATT 20dB

UNIT

dB

A

–20

–30

1AP

–40

–50

–60

–70

–80

–90

–100

CENTER 70.1MHz

10kHz/

SPAN 100kHz

Figure 11. 70.1 MHz Narrow-Band SFDR, 10 MHz External Clock

with REFCLK Multiplier = 20×

REF LVL

–5dBm

0

–12

RBW 100Hz

VBW 100Hz

SWT 50s

RF ATT 20dB

UNIT

dB

A

–24

–36

1AP

–48

–60

–72

–84

–96

–108

–120

CENTER 70.1MHz

10kHz/

SPAN 100kHz

Figure 12. 70.1 MHz Narrow-Band SFDR, 200 MHz External Clock

with REFCLK Multiplier Disabled

TYPICAL PHASE NOISE SPECTRAL PLOTS

REF LVL

0dBm

0

FXD –2.248dBm

–12

RBW 30Hz

VBW 30Hz

SWT 28s

RF ATT 30dB

UNIT

dB

A

–24

–36

1AP

–48

–60

–72

–84

–96

–108

–120

CENTER 40.1MHz

FXD

500Hz/

SPAN 5kHz

Figure 13. 40.1 MHz Output, 10 MHz External Clock

with REFCLK Multiplier = 20×

REF LVL

0dBm

0

FXD –2.248dBm

–12

RBW 30Hz

VBW 30Hz

SWT 28s

RF ATT 30dB

UNIT

dB

A

–24

–36

1AP

–48

–60

–72

–84

–96

–108

–120

CENTER 40.1MHz

FXD

500Hz/

SPAN 5kHz

Figure 14. 40.1 MHz Output, 200 MHz External Clock

with REFCLK Multiplier Disabled

Rev. C | Page 10 of 36

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