AD9530

Data Sheet

Rev. 0 | Page 22 of 41

INPUT/OUTPUT TERMINATION RECOMMENDATIONS

Figure 19 through Figure 24 illustrate the recommended input and output connections for connecting the AD9530 to other devices.

AD9530

100

Ω DIFFERENTIAL

(COUPLED)

TRANSMISSION LINE

CML

50

Ω

50

Ω

0.1µF

0.1µF

Figure 19. CML AC-Coupled Output Driver (External Termination Required

When Using the Internal Termination Option)

AD9530

100

Ω DIFFERENTIAL

(COUPLED)

TRANSMISSION LINE

CML

50

Ω

50

Ω

Figure 20. CML DC-Coupled Output Driver (External Termination Required

When Using the Internal Termination Option)

100

Ω DIFFERENTIAL

(COUPLED)

TRANSMISSION LINE

LVDS

AD9530

100

Ω

Figure 21. REFx Input Termination Recommendation for LVDS Drivers

100

Ω DIFFERENTIAL

(COUPLED)

TRANSMISSION LINE

HSTL

AD9530

0.1µF

0.1µF

100

Ω

Figure 22. REFx Input Termination Recommendation for High Speed

Transceiver Logic (HSTL) Drivers

100

Ω DIFFERENTIAL

(COUPLED)

TRANSMISSION LINE

LVPECL

AD9530

0.1µF

0.1µF

200

Ω

200

Ω

100

Ω

Figure 23. REFx Input Termination Recommendation for 3.3V LVPECL Drivers

100

Ω DIFFERENTIAL

(COUPLED)

TRANSMISSION LINE

50

Ω

50

Ω

CML

AD9530

Figure 24. REFx Input Termination Recommendation for 2.5V CML Drivers