For more information www.linear.com/LTC6990 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETE" />
參數(shù)資料
型號: DC1562A-A
廠商: Linear Technology
文件頁數(shù): 23/30頁
文件大?。?/td> 0K
描述: BOARD EVAL LTC6990
設(shè)計資源: DC1562A Design Files
DC1562A Schematic
特色產(chǎn)品: TimerBlox?
標準包裝: 1
系列: TimerBlox®
主要目的: 計時,電壓控制振蕩器(VCO)
嵌入式:
已用 IC / 零件: LTC6990
主要屬性: 1kHz ~ 10kHz 頻率范圍
次要屬性: 2.25 V ~ 5.5 V 電源
已供物品:
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LTC6990
3
6990fc
For more information www.linear.com/LTC6990
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
fOUT
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
%
fOUT/T
Frequency Drift Over Temperature
l
±0.005
%/°C
fOUT/V+
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
Long-Term Frequency Stability
(Note 11)
90
ppm/√kHr
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
s
Analog Inputs
VSET
Voltage at SET Pin
l
0.97
1.00
1.03
V
VSET/T
VSET Drift Over Temperature
l
±75
V/°C
VSET/V+ VSET Drift Over Supply
–150
V/V
VSET/ISET VSET Droop with ISET
–7
Ω
RSET
Frequency-Setting Resistor
Recommended Range
Extended Range
l
50
25
800
VDIV
DIV Pin Voltage
l
0
V+
V
VDIV/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
A
RL = ∞, NDIV = 1 RSET = 800k
V+ = 5.5V
V+ = 2.25V
l
71
59
105
92
A
RL = ∞, NDIV = 128, RSET = 50k
V+ = 5.5V
V+ = 2.25V
l
137
106
180
145
A
RL = ∞, NDIV = 128, RSET = 800k
V+ = 5.5V
V+ = 2.25V
l
66
56
100
90
A
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications 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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