THS8133, THS8133A, THS8133B

TRIPLE 10-BIT, 80 MSPS VIDEO D/A CONVERTER

WITH TRI-LEVEL SYNC GENERATION

SLVS204C – APRIL 1999 – REVISED SEPTEMBER 2000

13

POST OFFICE BOX 655303

performance plots of AGY output channel at 80 MSPS and use of internal reference (continued)

0.6

1.2

1.7

2.3

2.9

3.4

4.0

–120

–60

Frequency (MHz)

SPECTRUM OF DAC OUTPUTS

AMPLITUDE (dBFS)

vs

FREQUENCY (MHz)

0

4.5

5.1

5.7

6.2

–100

–80

–40

–20

6.8

7.3

7.9

8.5

9.0

9.6

10.1

Figure 9. Spectral Plot for 1.02 MHz Digital Sine Input at 80 MSPS

–25.0–22.2–19.4–16.6–13.8–11.0 –8.2

0.5

0.8

Time (ns)

DAC OUTPUT WAVEFORM

BLANK TO FULL-SCALE VIDEO OUTPUT (mV)

vs

TIME (ns)

1.1

–5.4 –2.6 0.2

3.0

0.6

0.7

0.9

1

5.8

8.6 11.4 14.2 17.0 19.8 22.6

0.4

0.3

0.2

Figure 10. DAC Output Waveform (rise/fall and settling times)

Fin (kHz)

Fclk (MSPS)

SYNC DROOP (dB)

EXCESS DROOP (dB)

500

80

0

0

5000

80

–0.056

–0.02

10000

80

–0.22

–0.08

20000

80

–0.91

–0.29

30000

80

–2.11

–0.39

40000

80

–3.92

–0.40