AD9853AS datasheet(8/31 Pages) AD

8 / 31 page

AD9853

–8–

REV. C

–10

–100

START 0Hz

STOP 60MHz

6MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 17s

RF ATT = 30dB

REF LVL = 0dBm

Figure 8. AOUT = 1 MHz

–10

–100

START 0Hz

STOP 60MHz

6MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 17s

RF ATT = 30dB

REF LVL = 0dBm

Figure 9. AOUT = 42 MHz

Modulated Output Spectrum with 5 V Supply,

= 0.25, 27.5 MHz REFCLK

–10

0 START 0Hz

STOP 80MHz

8MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 22.5s

RF ATT = 10dB

REF LVL = –20dBm

Figure 7. QPSK, 1.375 Mb/s, AOUT = 65 MHz

Single Tone Output Spectrum with +3.3 V Supply, 20.48 MHz REFCLK

–10

–100

START 0Hz

STOP 60MHz

6MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 17s

RF ATT = 30dB

REF LVL = 0dBm

Figure 11. AOUT = 20 MHz

–10

–100

CENTER 40Hz

SPAN 80MHz

8MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 5kHz

VBW = 5kHz

SWT = 8s

RF ATT = 30dB

REF LVL = 0dBm

Figure 12. AOUT = 65 MHz

(+5 V Supply, 27.5 MHz REFCLK)

–10

–100

START 0 Hz

STOP 80 MHz

8 MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 22.5s

RF ATT = 10dB

REF LVL = –20dBm

Figure 10. QPSK, 5.5 Mb/s, AOUT = 65 MHz

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