ELECTRICAL CHARACTERISTICS The l denotes the sp" />
參數(shù)資料
型號: DC1562A-B
廠商: Linear Technology
文件頁數(shù): 18/24頁
文件大?。?/td> 0K
描述: BOARD EVAL LTC6991
設(shè)計資源: DC1562A Design Files
DC1562A Schematic
特色產(chǎn)品: TimerBlox?
標(biāo)準(zhǔn)包裝: 1
系列: TimerBlox®
主要目的: 計時,時鐘振蕩器
嵌入式:
已用 IC / 零件: LTC6991
主要屬性: 1Hz 固定頻率
次要屬性: 2.25 V ~ 5.5 V 電源
已供物品:
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LTC6991
3
6991fb
ELECTRICAL CHARACTERISTICS 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, RST = 0V, DIVCODE = 0 to 15
(NDIV = 1 to 221), RSET = 50k to 800k, RLOAD = 5k, CLOAD = 5pF unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tOUT
Output Clock Period
1.024m
34,360
Seconds
fOUT
Output Frequency
29.1μ
977
Hz
ΔfOUT
Frequency Accuracy (Note 4)
29.1μHz ≤ fOUT ≤ 977Hz
l
±0.8
±1.5
±2.2
%
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
Long-Term Frequency Stability
(Note 11)
90
ppm/√kHr
Period Jitter (Note 10)
NDIV = 1
NDIV = 8
15
7
ppmRMS
BW
Frequency Modulation Bandwidth
0.4 fOUT
Hz
tS
Frequency Change Settling Time (Note 9)
1
Cycle
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
RSET
Frequency-Setting Resistor
l
50
800
VDIV
DIV Pin Voltage
l
0V+
V
ΔVDIV/ΔV+
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
l
1.95
V
IS
Supply Current
RL = ∞, RSET = 50k
V+ = 5.5V
V+ = 2.25V
l
135
105
170
135
μA
RL = ∞, RSET = 100k
V+ = 5.5V
V+ = 2.25V
l
100
80
130
105
μA
RL = ∞, RSET = 800k
V+ = 5.5V
V+ = 2.25V
l
65
55
100
85
μA
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