AD9853_15 datasheet(7/31 Pages) AD

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Modulated Output Spectrum with 3.3 V Supply,

α = 0.25, 20.48 MHz REFCLK

Typical Performance Characteristics–AD9853

–7–

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 = 10dB

REF LVL = –20dBm

Figure 1. QPSK, 320 kb/s, AOUT = 10 MHz

–10

–100

START 0Hz

STOP 60MHz

6MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 17s

RF ATT = 10dB

REF LVL = –20dBm

Figure 2. QPSK, 640 kb/s, AOUT = 20 MHz

–10

–100

START 0Hz

STOP60 MHz

6MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 17s

RF ATT = 10dB

REF LVL = –20dBm

Figure 3. QPSK, 1.28 Mb/s, AOUT = 42 MHz

–10

–100

START 0Hz

STOP 60MHz

6MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 17s

RF ATT = 10dB

REF LVL = –20dBm

Figure 4. QPSK, 1.28 Mb/s, AOUT = 10 MHz

–10

–100

START 0Hz

STOP 60MHz

6MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 17s

RF ATT = 10dB

REF LVL = –20dBm

Figure 5. QPSK, 2.56 Mb/s, AOUT = 20 MHz

–10

–100

START 0Hz

STOP60 MHz

6MHz/

–40

–70

–80

–90

–20

–30

–60

–50

RBW = 3kHz

VBW = 3kHz

SWT = 17s

RF ATT = 10dB

REF LVL = –20dBm

Figure 6. QPSK, 5.12 Mb/s, AOUT = 42 MHz

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