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參數(shù)資料
| 型號(hào)： | LTC6905MPS5#TR |
| 廠(chǎng)商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 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)： | 1/12頁(yè) |
| 文件大?。?/td> | 166K |
| 代理商： | LTC6905MPS5#TR |
LTC6905
1
6905fd
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
17MHz to 170MHz
Resistor Set SOT-23 Oscillator
The LTC
6905 precision, programmable silicon oscilla-
tor is easy to use and occupies very little board space. It
requires only a single resistor to set the output frequency
from 17MHz to 170MHz with a typical frequency error of
0.5% or less.
The LTC6905 operates with a single 2.7V to 5.5V power
supply and provides a rail-to-rail, 50% duty cycle square
wave output. The CMOS output driver ensures fast rise/fall
times and rail-to-rail switching. Operation is simple: A
single resistor, RSET, between 10k to 25k is used to set
the frequency, and an internal three-state divider (DIV
input) allows for division of the master clock by 1, 2 or 4,
providing three frequencies for each RSET value.
The LTC6905 features a proprietary feedback loop that
linearizes the relationship between RSET and frequency,
eliminating the need for tables to calculate frequency. The
oscillator can be easily programmed using the simple
formula outlined below:
f
MHz
k
R
MHz
N
Open
OSC
SET
=
Ω
+
=
=
+
168 5
10
15
1
2
4
.
. ,
,
DIV Pin
V
DIV Pin
GND
For higher accuracy, xed frequency versions that
include an internal frequency-setting resistor, see the
LTC6905-XXX Series data sheet.
Typcial Distribution of Frequency Error, TA = 25°C
n One External Resistor Sets the Frequency
n Fast Start-Up Time: 100μs Typical
n Frequency Range: 17MHz to 170MHz
n Frequency Error ±0.5% Typ 17MHz to 170MHz
(TA = 0°C to 70°C, Over All Settings)
n ±20ppm/°C Temperature Stability
n Rise Time: 0.5ns, CL = 5pF
n Timing Jitter: 7.2ps RMS at 170MHz
n 50% ±2.5% Duty Cycle
n 6mA Typical Supply Current, fOSC = 100MHz
n CMOS Output Drives 500Ω Load (VS = 3V)
n Operates from a Single 2.7V to 5.5V Supply
n Low Prole (1mm) ThinSOT Package
n High Frequency Precision Oscillator
n High Speed Data Bus Clock
n Fixed Crystal Oscillator Replacement
n Ceramic Oscillator Replacement
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6614313, 6342817.
% ERROR
–0.5
0
UNITS
10
20
30
40
50
60
NOTE: RESISTOR, RSET, TOLERANCE WILL ADD
TO THE FREQUENCY ERROR
–0.3
–0.1
0.1
0.3
6905 TA02
0.5
V+ = 3V
RSET = 12k
DIV = 1
V+
1
2
3
5
17.225MHz ≤ fOSC ≤ 170MHz
5V
10k ≤ RSET ≤ 25k
0.1μF
6905 TA01
4
GND
LTC6905
SET
OUT
DIV
OPEN
÷2
÷1
÷4
Basic Connection
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC6905-XXX | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Fixed Frequency SOT-23 Oscillator |
| LTC6906 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| LTC6906CS6 | 制造商:Linear Technology 功能描述:MICROPOWER, 10KHZ TO 1MHZRESISTOR SET OSCILLATORIN SOT-23 |
| LTC6906CS6#PBF | 制造商:Linear Technology 功能描述:MICROPOWER, 10KHZ TO 1MHZRESISTOR SET OSCILLATORIN SOT-23 制造商:Linear Technology 功能描述:IC PROG OSC 1MHZ 5.5V TSOT-23-6 制造商:Linear Technology 功能描述:IC, PROG OSC, 1MHZ, 5.5V, TSOT-23-6 制造商:Linear Technology 功能描述:IC, PROG OSC, 1MHZ, 5.5V, TSOT-23-6; Operating Mode:-; Frequency:1MHz; Supply Voltage Min:2.25V; Supply Voltage Max:5.5V; Digital IC Case Style:TSOT-23; No. of Pins:6; Clock External Input:-; Operating Temperature Min:-40C ;RoHS Compliant: Yes |
| LTC6906CS6#TR | 制造商:Linear Technology 功能描述:MICROPOWER, 10KHZ TO 1MHZRESISTOR SET OSCILLATORIN SOT-23 制造商:Linear Technology 功能描述:Silicon Oscillator 6-Pin TSOT-23 T/R |
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