參數(shù)資料
型號(hào): LTC6905MPS5#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, PDSO5
封裝: PLASTIC, SOT-23, 5 PIN
文件頁(yè)數(shù): 7/12頁(yè)
文件大小: 166K
代理商: LTC6905MPS5#TR
LTC6905
4
6905fd
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Frequency
Frequency Error vs RSET
Frequency Error vs Supply Voltage
FREQUENCY (MHz)
0
SUPPL
Y
CURRENT
(mA)
10
12
14
200
6905 G01
8
÷4
÷1
6
0
2
50
100
150
4
18
16
5.5V
2.7V
÷2
RSET (kΩ)
10
FREQUENCY
ERROR
(%)
0
0.20
0.40
22
6905 G02
–0.20
–0.40
12
14
16
18
20
24
–0.60
–0.80
0.60
SUPPLY VOLTAGE (V)
2.5
–0.40
FREQUENCY
ERROR
(%)
–0.20
0.20
0.40
0.60
4.5
1.40
6905 G03
0
3.5
3
5
4
5.5
0.80
1.00
1.20
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOL
Low Level Output Voltage (Note 4)
V+ = 5.5V, Pin 4 = 0V
IOL = 1mA
IOL = 4mA
l
0.05
0.2
0.25
0.3
V
V+ = 2.7V, Pin 4 = 0V
IOL = 1mA
IOL = 4mA
l
0.1
0.4
0.3
0.5
V
tr, tf
OUT Rise/Fall Time (Note 5)
0.5
ns
VSET
Voltage at RSET Pin
V+ = 5.5V
V+ = 2.7V
l
4.27
1.61
4.5
1.7
4.73
1.79
V
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full specied
temperature range, otherwise specications are at TA = 25°C or as noted. V+ = 2.7V to 5.5V, RL = 15k, CL = 5pF, Pin 4 = V+ unless
otherwise noted. All voltages are with respect to GND.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Frequency accuracy is dened as the deviation from the fOSC
equation. Accuracy is tested with DIV = V+, N = 1 and other divide ratios
are guaranteed by design.
Note 3: Jitter is the ratio of the peak-to-peak distribution of the period to
the mean of the period. This specication is based on characterization and
is not 100% tested.
Note 4: To conform with the Logic IC Standard convention, current out of
a pin is arbitrarily given as a negative value.
Note 5: Output rise and fall times are measured between the 10% and
90% power supply levels.
Note 6: A heat sink may be required to keep the junction temperature
below the absolute maximum when the output is shorted indenitely.
Note 7: The LTC6905C is guaranteed functional over the operating
temperature range.
Note 8: The LTC6905C is guaranteed to meet specied performance from
0°C to 70°C. The LTC6905C-XXX is designed, characterized and expected
to meet specied performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. The LTC6905I-XXX is guaranteed to meet
specied performance from –40°C to 85°C.
Note 9: The LTC6905 is optimized for the performance with a 3V power
supply voltage. Please consult LTC Marketing for parts optimized for 5V
operation.
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