AD9549/PCBZ Analog Devices Inc, AD9549/PCBZ Datasheet - Page 73

• Manufacturer Part Number: AD9549/PCBZ
• Description: BOARD EVALUATION FOR AD9549
• Manufacturer: Analog Devices Inc

Specifications of AD9549/PCBZ

• Main Purpose: Timing, Clock Generator
• Embedded: No
• Utilized Ic / Part: AD9549
• Primary Attributes: 2 Inputs, 2 Outputs, VCO
• Secondary Attributes: CMOS, HSTL Output Logic, Graphical User Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATIONS INFORMATION
SAMPLE APPLICATIONS CIRCUIT
Applications Circuit Features
Features of this applications circuit include the following:
•
•
•
INPUT A
INPUT B
Input frequencies down to 8 kHz; output frequencies up to
400 MHz
Programmable loop bandwidth down to <1 Hz
Automatic redundant clock switchover with user-selectable
rate-of-phase adjustment
REF A
REF B
DIFF HSTL OUTPUT
AD9549
CMOS OUTPUT
FDBK_INB
FDBK_IN
DDS/
DAC
SYSCLK
Figure 59. AD9549 and AD9514 Precision Clock Distribution Circuit
LOW-PASS
FILTER
Rev. D | Page 73 of 76
SYNCB
CLKB
CLK
AD9514
•
•
•
•
Automatic Stratum 3/3E clock holdover, depending on the
configuration
Phase noise (f
100 Hz offset: −107 dBc/Hz; 1 kHz offset: −142 dBc/Hz;
100 kHz offset: −157 dBc/Hz; two zero-delay outputs with
programmable postdivider and synchronization
Two additional outputs (nonzero delay) on the AD9549
Programmable skew adjustment on one AD9514 output
/1...../32
/1...../32
/1...../32
C
= 122.3 MHz and 100 Hz loop bandwidth);
Δ
t
LDDS/CMOS
LVPECL
LVPECL
OUT0/
OUT0B
OUT1/
OUT1B
OUT2/
OUT2B
AD9549