AD9858/TLPCBZ Analog Devices Inc, AD9858/TLPCBZ Datasheet - Page 27

• Manufacturer Part Number: AD9858/TLPCBZ
• Description: BOARD EVAL TRANSLATION LOOP
• Manufacturer: Analog Devices Inc
• Series: AgileRF™r

Specifications of AD9858/TLPCBZ

• Design Resources: Low Jitter Sampling Clock Generator for High Performance ADCs Using AD9958/9858 and AD9515 (CN0109)
• Main Purpose: Timing, Direct Digital Synthesis (DDS)
• Utilized Ic / Part: AD9858/TL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

APPLICATIONS INFORMATION
TUNING WORD
FREQUENCY
TUNING WORD
FREQUENCY
32
32
1GSPS
DDS
Figure 39. DDS Synthesizer AD9858 as Fractional N Synthesizer (Implemented in Fractional Divide Evaluation Board)
DIVIDER
DDS/DAC CLOCK
1GSPS
150MHz
DDS
REFERENCE
1/2
Figure 37. DDS Synthesizer Translation Loop Oscillator (Implemented in Translation Loop Evaluation Board)
150MHz
2GHz
CLOCK 1000MHz
10
DDS/DAC
10
FILTER
DAC
DAC
Figure 38. DDS Synthesizer Single-Loop PLL Up-Conversion
DC TO 400MHz
AD9858
DC TO 400MHz
DIVIDER
FILTER
1/2/4
AD9858
DAC
FILTER
Rev. C | Page 27 of 32
TUNING WORD
FREQUENCY
FREQUENCY
DETECTOR
AD9858
DIVIDER
PHASE/
150MHz
1GSPS
32
1/2/4
DDS
DIVIDER
1/2/4
DC TO 150MHz
DC TO 150MHz
f
REF
1000
MHz
f
REF
FREQUENCY
DETECTOR
CHARGE PUMP
(0.5mA STEPS)
0.5mA TO 2mA
PHASE/
150MHz
FREQUENCY
DETECTOR
DIVIDER
PHASE/
150MHz
FILTER
1/2
CHARGE PUMP
0.5mA TO 2mA
(0.5mA STEPS)
CHARGE PUMP
(0.5mA STEPS)
0.5mA TO 2mA
ANALOG
FILTER
MIXER
2GHz MAX
FIXED
LOOP
LOOP
(LO1)
2GHz
VCO
FILTER
LOOP
2GHz ±150MHz
DIVIDER
FILTER
LOOP
VCO
F = M ×
VCO
AD9858
f
REF