AD7011

REV. B

–11–

0

–40

–80

1

1000

100

10

0.1

–60

–20

–30

–50

–70

–10

FREQUENCY – kHz

Figure 13. Reconstruction Filter Frequency Response for

the I and Q DACs, MCLK = 2.56 MHz

I Channel – Volts

1.2

–1.2

1.2

0

–0.8

–0.8

–0.4

–1.2

0.8

0.4

0.8

0.4

0

–0.4

I Channel – Volts

1.2

–1.2

1.2

0

–0.8

–0.8

–0.4

–1.2

0.8

0.4

0.8

0.4

0

–0.4

Figure 14. AD7011 I vs. Q Waveforms When Transmitting

Random Data

I Channel – Volts

1.2

–1.2

1.2

0

–0.8

–0.8

–0.4

–1.2

0.8

0.4

0.8

0.4

0

–0.4

Figure 15. AD7011 Transmit Constellation Diagram

0

–40

–80

1

1000

100

10

0.1

–60

–20

–30

–50

–70

–10

FREQUENCY – kHz

Figure 16. Reconstruction Filter Frequency Response for

the I and Q DACs, MCLK = 3.1104 MHz

I Channel – Volts

1.2

–1.2

1.2

0

–0.8

–0.8

–0.4

–1.2

0.8

0.4

0.8

0.4

0

–0.4

Figure 17. AD7011 I vs. Q Waveforms Filtered by an Ideal

Root Raised Cosine Receive Filter

I Channel – Volts

1.2

–1.2

1.2

0

–0.8

–0.8

–0.4

–1.2

0.8

0.4

0.8

0.4

0

–0.4

Figure 18. AD7011 Constellation Diagram When Filtered

by an Ideal Root Raised Cosine Receive Filter