AD9852AST Analog Devices Inc, AD9852AST Datasheet - Page 17

• Manufacturer Part Number: AD9852AST
• Manufacturer: Analog Devices Inc

Specifications of AD9852AST

• Lead Free Status / RoHS Status: Not Compliant

μPROCESSOR/
CONTROLLER
REFERENCE
FPGA, ETC.
CLOCK
2kΩ
R
8-BIT PARALLEL OR
SERIAL PROGRAMMING
DATA AND CONTROL
SIGNALS
300MHz MAX DIRECT
MODE OR 15MHz TO 75MHz
MAX IN THE 4× TO 20× CLOCK
MULTIPLIER MODE
SET
AD9852
Figure 30. Differential Output Connection for Reduction of Common-Mode Signals
REFERENCE
REFERENCE
CLOCK
Figure 31. Frequency Agile Clock Generator Applications for the AD9852
CLOCK
CONTROL
COSINE
AD9852
DAC
TUNING
WORD
DAC
CMOS LOGIC CLOCK OUT
DDS
Figure 29. Agile High Frequency Synthesizer
AD9852
DDS
FILTER
Rev. E | Page 17 of 52
TRANSFORMER-COUPLED
1
2
I
I
OUT
OUT
THAT IS, Mini-Circuits
COMPARATOR
1:1 TRANSFORMER
DIVIDE-BY-N
DIFFERENTIAL
PHASE
OUTPUT
LOW-PASS
LOW-PASS
50Ω
FILTER
FILTER
FILTER
LOOP
®
T1-1T
FILTER
NOTES
1. I
2. SWITCH POSITION 1 PROVIDES COMPLEMENTARY
3. SWITCH POSITION 2 PROVIDES A USER-PROGRAMMABLE
RF FREQUENCY
VCO
SINUSOIDAL SIGNALS TO THE COMPARATOR TO
PRODUCE A FIXED 50% DUTY CYCLE FROM THE
COMPARATOR.
DC THRESHOLD VOLTAGE TO ALLOW SETTING OF THE
COMPARATOR DUTY CYCLE.
OUT
50Ω
OUT
= APPROXIMATELY 20mA MAX WHEN R
SET
= 2kΩ.
AD9852