參數(shù)資料
型號(hào): LTC6990IS6#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: XO, clock
英文描述: VCO, 0.000488 MHz - 2 MHz
封裝: LEAD FREE, PLASTIC, TSOT-23, 6 PIN
文件頁數(shù): 22/28頁
文件大小: 310K
代理商: LTC6990IS6#TRPBF
LTC6990
3
6990f
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fOUT
Output Frequency
Recommended Range: RSET = 50k to 800k
Extended Range: RSET = 25k to 800k
0.488
1000
2000
kHz
ΔfOUT
Frequency Accuracy (Note 4)
Recommended Range
RSET = 50k to 800k
l
±0.8
±1.5
±2.2
%
Extended Range
RSET = 25k to 800k
l
±2.4
±3.2
%
ΔfOUT/ΔT
Frequency Drift Over Temperature
l
±0.005
%/°C
ΔfOUT/ΔV+
Frequency Drift Over Supply
V+ = 4.5V to 5.5V
V+ = 2.25V to 4.5V
l
0.23
0.06
0.55
0.16
%/V
Period Jitter (Note 10)
NDIV = 1
0.38
%P-P
NDIV = 2
0.22
0.027
%P-P
%RMS
NDIV = 128
0.022
0.004
%P-P
%RMS
Duty Cycle
NDIV = 1, RSET = 25k to 800k
NDIV > 1, RSET = 25k to 800k
l
47
48
50
53
52
%
BW
Frequency Modulation Bandwidth
0.4fOUT
kHz
tS
Frequency Change Settling Time
(Note 9)
tMASTER = tOUT/NDIV
6tMASTER
μs
Analog Inputs
VSET
Voltage at SET Pin
l
0.97
1.00
1.03
V
ΔVSET/ΔT
VSET Drift Over Temperature
l
±75
μV/°C
ΔVSET/ΔV+
VSET Drift Over Supply
–150
μV/V
ΔVSET/ΔISET VSET Droop with ISET
–7
Ω
RSET
Frequency-Setting Resistor
Recommended Range
Extended Range
l
50
25
800
VDIV
DIV Pin Voltage
l
0V+
V
ΔVDIV/V+
DIV Pin Valid Code Range (Note 5)
Deviation from Ideal VDIV/V+ = (DIVCODE + 0.5)/16
l
±1.5
%
DIV Pin Input Current
l
±10
nA
Power Supply
V+
Operating Supply Voltage Range
l
2.25
5.5
V
Power-On Reset Voltage
RSET = 25k to 800k
l
1.95
V
IS
Supply Current
RL = ∞, NDIV = 1, RSET = 50k
V+ = 5.5V
V+ = 2.25V
l
235
145
283
183
μA
RL = ∞, NDIV = 1 RSET = 800k
V+ = 5.5V
V+ = 2.25V
l
71
59
105
92
μA
RL = ∞, NDIV = 128, RSET = 50k
V+ = 5.5V
V+ = 2.25V
l
137
106
180
145
μA
RL = ∞, NDIV = 128, RSET = 800k
V+ = 5.5V
V+ = 2.25V
l
66
56
100
90
μA
The
l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. Test conditions are V+ = 2.25V to 5.5V, OE = V+, DIVCODE = 0 to 15
(NDIV = 1 to 128), RSET = 50k to 800k, RLOAD = 5k, CLOAD = 5pF unless otherwise noted.
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