AD9911

Rev. 0 | Page 17 of 44

APPLICATION CIRCUITS

LOOP

FILTER

PHASE

COMPARATOR

VCO

AD9911

REF CLK

REFERENCE

CHARGE

PUMP

AD9510, AD9511, ADF4106

÷

÷

LPF

Figure 32. DDS in PLL Feedback Locking to Reference Offering Fine Frequency and Delay Adjust Tuning

AD9911

(SLAVE 1)

AD9911

(MASTER)

CLOCK

SOURCE

AD9911

(SLAVE 2)

AD9911

(SLAVE 3)

FPGA

DATA

SYNC_CLK

REF_CLK

SYNC_CLK

SYNC_CLK

FPGA

DATA

FPGA

DATA

DATA

FPGA

SYNC_CLK

C1

S1

C2

S2

C3

S3

C4

S4

A1

A2

A4

A3

A_END

CENTRAL

CONTROL

AD9510

CLOCK DISTRIBUTOR

WITH

DELAY EQUALIZATION

SYNC_OUT

AD9510

SYNCHRONIZATION

DELAY EQUALIZATION

Figure 33. Synchronizing Multiple Devices to Increase Channel Capacity Using the AD9510 as a Clock Distributor for the Reference and SYNC Clock

AD9911

REF CLK

n

PROGRAMMABLE 1 TO 32

DIVIDER AND DELAY ADJUST

CLOCK OUTPUT

SELECTION(S)

n = DEPENDANT ON PRODUCT SELECTION.

AD9515

AD9514

AD9513

AD9512

LVPECL

LVDS

CMOS

CH 2

LPF

Figure 34. Clock Generation Circuit Using the AD951x Series of Clock Distribution Chips