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AD9545 датащи(PDF) 17 Page - Analog Devices

номер детали AD9545
подробное описание детали  Quad Input, 10-Output, Dual DPLL/IEEE 1588 1 pps Synchronizer and Jitter Cleaner
PDF  157 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD9545 датащи(HTML) 17 Page - Analog Devices

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Data Sheet
AD9545
Rev. A | Page 17 of 157
AUXILIARY CIRCUIT SPECIFICATIONS
Table 15.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
TIME TO DIGITAL CONVERTERS (TDCs)
Periodic Operation
Applicable to all TDCs contained within the AD9545
Frequency Range
1
2 × 105
Hz
Timestamp Jitter (RMS)
20
ps
System clock source = 52 MHz crystal
NCOs
These NCOs are called AUXNCO0 and AUXNCO1 in the
register map and evaluation software
Fundamental Frequency
Range
1
65,535
Hz
Quantization
1.27
1.37
pHz
pHz is picohertz
Phase Slew Limiter
5
232
ppb
Actual units are fractional part (ideal)/actual unit interval (UI)
Output Signal
Pulse Width
38
ns
Duty Cycle
45
55
%
Assumes the device is programmed to produce a nominal
pulse width of 50%
Quantization
1.4
ns
SYSTEM CLOCK COMPENSATION SPECIFICATIONS
Table 16.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DIRECT COMPENSATION
Resolution
0.028
ppt
ppt is parts per trillion (10−12)
CLOSED-LOOP COMPENSATION
(AUXILIARY DPLL)
Phase Detector Frequency
2
200
kHz
Loop Bandwidth
0.1
2 × 103
Hz
Reference Monitor Threshold
5
%
TEMPERATURE SENSOR SPECIFICATIONS
Table 17.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
TEMPERATURE
Accuracy
Absolute
5
°C
TA = −50°C to +110°C
Relative
1.7
%
TA = −50°C to +110°C
Resolution
0.0078
°C
16-bit (signed) resolution
Conversion time
0.18
ms
REPEATABILITY
±0.02
°C
TA = 25°C
DRIFT
0.1
°C
500 hour stress test at 100°C
SERIAL PORT SPECIFICATIONS
Serial Port Interface (SPI) Mode
Table 18.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
CSB
Valid for VDDIOA = 1.8 V, 2.5 V, and 3.3 V
Input Logic 1 Voltage
VDDIOA − 0.4
V
Input Logic 0 Voltage
0.4
V



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