參數(shù)資料
型號: AD9547/PCBZ
廠商: Analog Devices Inc
文件頁數(shù): 83/104頁
文件大小: 0K
描述: BOARD EVALUATION FOR AD9547
設計資源: AD9547 Schematic
AD9574 BOM
標準包裝: 1
主要目的: 計時,時鐘發(fā)生器
嵌入式:
已用 IC / 零件: AD9547
主要屬性: 2 個差分式或 4 個單端輸入
次要屬性: CMOS,LVPECL 和 LVDS 兼容
已供物品:
AD9547
Data Sheet
Rev. E | Page 8 of 104
REFERENCE SWITCHOVER SPECIFICATIONS
Table 10.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
MAXIMUM OUTPUT PHASE
PERTURBATION (PHASE BUILD-OUT
SWITCHOVER)
40
200
ps
Assumes a jitter-free reference; satisfies
Telcordia GR-1244-CORErequirements
MAXIMUM TIME/TIME SLOPE
(HITLESS SWITCHOVER)
315
65,535
ns/sec
Minimum/maximum values are program-
mable upper bounds; a minimum value
ensures <10% error; satisfies Telcordia
GR-1244-CORErequirements
TIME REQUIRED TO SWITCH TO A NEW
REFERENCE
Hitless Switchover
5
NPDP
NPDP = nominal phase detector period
(NPDP = fREF/R)1
Phase Build-Out Switchover
3
NPDP
NPDP = nominal phase detector period
(NPDP = fREF/R)1
1
fREF is the frequency of the active reference; R is the frequency division factor determined by the R divider.
DISTRIBUTION CLOCK OUTPUTS (OUT0, OUT1)
Table 11.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
LVPECL MODE
Using internal current setting resistor
(nominal 3.12 k)
Maximum Output Frequency
725
MHz
Rise/Fall Time1 (20% to 80%)
180
315
ps
100 terminationacross output pins
Duty Cycle
45
55
%
Differential Output Voltage Swing
630
770
910
mV
Magnitude of voltage across pins; output
driver static
Common-Mode Output Voltage
AVDD3 1.5
AVDD3 1.3
AVDD3 1.05
V
Output driver static
LVDS MODE
Using internal current setting resistor
(nominal 3.12 k)
Maximum Output Frequency
725
MHz
Rise/Fall Time1 (20% to 80%)
200
350
ps
100 terminationacross the output pins
Duty Cycle
40
60
%
Differential Output Voltage Swing
Balanced (VOD)
247
454
mV
Voltage swing betweenoutput pins;
output driver static
Unbalanced (ΔVOD)
50
mV
Absolute difference betweenvoltage
swing of normal pin and invertedpin;
output driver static
Offset Voltage
Common Mode (VOS)
1.125
1.375
V
Output driver static
Common-Mode Difference (ΔVOS)
50
mV
Voltage difference betweenpins; output
driver static
Short-Circuit Output Current
13
24
mA
Output driver static
CMOS MODE
Weak drive option not supported for
operating the CMOS drivers using a 1.8 V
supply
Maximum Output Frequency
3.3 V Supply
10 pF load
Strong Drive Strength Setting
250
MHz
Weak Drive Strength Setting
25
MHz
1.8 V Supply
150
MHz
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