AD9856(RevB) 데이터 시트보기 (PDF) - Analog Devices

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AD9856
(Rev.:RevB)

CMOS 200 MHz Quadrature Digital Upconverter

Analog Devices 

AD9856

Typical Narrowband SFDR Spectral Plots

REF LVL

–5dBm

0

–10

RBW

VBW

SWT

100Hz

100Hz

50s

RF ATT 20dB

UNIT

dB

A

–20

–30

1AP

–40

–50

–60

–70

–80

–90

–100

CENTER 70.1MHz

10kHz/

SPAN 100kHz

Figure 9. 70.1 MHz Narrowband SFDR, 10 MHz External

Clock with REFCLK Multiplier = 20×

REF LVL

–5dBm

0

–12

RBW

VBW

SWT

100Hz

100Hz

50s

RF ATT 20dB

UNIT

dB

A

–24

–36

1AP

–48

–60

–72

–84

–96

–100

–120

CENTER 70.1MHz

10kHz/

SPAN 100kHz

Figure 11. 70.1 MHz Narrowband SFDR, 200 MHz External

Clock with REFCLK Multiplier Disabled

Typical Phase Noise Spectral Plots

REF LVL

0dBm

0 FXD –2.248dBm

–12

–24

–36

–48

–60

–72

–84

RBW

VBW

SWT

30Hz

30Hz

28s

RF ATT 30dB

UNIT

dB

A

1AP

–96

–108

–120

CENTER 40.1MHz

FXD

500Hz/

SPAN 5kHz

Figure 10. 40.1 MHz Output, 10 MHz External Clock with

REFCLK Multiplier = 20×

REF LVL

0dBm

0 FXD –2.248dBm

–12

RBW

VBW

SWT

30Hz

30Hz

28s

RF ATT 30dB

UNIT

dB

A

–24

–36

1AP

–48

–60

–72

–84

–96

–100

–120

CENTER 40.1MHz

FXD

500Hz/

SPAN 5kHz

Figure 12. 40.1 MHz Output, 200 MHz External Clock with

REFCLK Multiplier Disabled

–8–

REV. B

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