AD9260AS datasheet(12/36 Pages) AD

12 / 36 page

AD9260

–12–

REV. B

–Typical Performance Characteristics

FREQUENCY – MHz

1.2

0.2

0.4

0.6

0.8

1.0

–20

–40

–60

–80

–100

–120

100kHz INPUT

20MHz CLOCK

DECIMATION

THD: –96dB

Figure 5. Spectral Plot of the AD9260 at 100 kHz Input,

20 MHz Clock, 8

× OSR (2.5 MHz Output Data Rate)

FREQUENCY – MHz

0.5

1.5

2.5

–20

–40

–60

–80

–100

–120

100kHz INPUT

20MHz CLOCK

DECIMATION

THD: –98dB

Figure 6. Spectral Plot of the AD9260 at 100 kHz Input,

20 MHz Clock, 4

× OSR (5 MHz Output Data Rate)

FREQUENCY – MHz

0.5

1.5

2.5

3.5

4.5

–20

–40

–60

–80

–100

–120

100kHz INPUT

20MHz CLOCK

DECIMATION

THD: –98dB

Figure 7. Spectral Plot of the AD9260 at 100 kHz Input,

20 MHz Clock, 2

× OSR (10 MHz Output Data Rate)

FREQUENCY – MHz

–20

–40

–60

–80

–100

–120

100kHz INPUT

20MHz CLOCK

DECIMATION

THD: –98dB

Figure 8. Spectral Plot of the AD9260 at 100 kHz Input,

20 MHz Clock, Undecimated (20 MHz Output Data Rate)

FREQUENCY – MHz

0.4

0.6

106

0.2

110

102

–46dBFS/TONE

–6.5dBFS/TONE

–26dBFS/TONE

–12dBFS/TONE

0.8

Figure 9. Dual Tone SFDR vs. Input Frequency (F1 = F2,

(F1 – F2, Span = 10% Center Frequency, Mode = 8

×)

FREQUENCY – MHz

1.2

0.2

0.4

0.6

0.8

–20

–40

–60

–80

–100

–120

DUAL-TONE TEST

f1 = 1.0MHz

f2 = 975kHz

20MHz CLOCK

DECIMATION

IM3: –94dB

Figure 10. Two-Tone Spectral Performance of the

AD9260 Given Inputs at 975 kHz and 1.0 MHz, 20 MHz

Clock, 8

× Decimation

(AVDD = DVDD = DRVDD = +5.0 V, 4 V Input Span, Differential DC Coupled Input with CML = 2.0 V, fCLOCK = 20 MSPS, Full Bias)

AD9260AS Datasheet(PDF) 12 Page - Analog Devices

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