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參數(shù)資料
| 型號： | LTC6905IS5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | XO, clock |
| 英文描述： | 17MHz to 170MHz Resistor Set SOT-23 Oscillator |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, PDSO5 |
| 封裝： | PLASTIC, SOT-23, 5 PIN |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 119K |
| 代理商： | LTC6905IS5 |
LTC6905
1
6905fa
, LTC and LT 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.
■
One External Resistor Sets the Frequency
■
Fast Start-Up Time: 100
μ
s Typical
■
Frequency Range: 17MHz to 170MHz
■
Frequency Error
±
0.5% Typ 17MHz to 170MHz
(T
A
= 0
°
C to 70
°
C, Over All Settings)
■
±
20ppm/
°
C Temperature Stability
■
Rise Time: 0.5ns, C
L
= 5pF
■
Timing Jitter: 50ps at 170MHz
■
50%
±
2.5% Duty Cycle
■
6mA Typical Supply Current, f
OSC
= 100MHz
■
CMOS Output Drives 500
Load (V
S
= 3V)
■
Operates from a Single 2.7V to 5.5V Supply
■
Low Profile (1mm) ThinSOT
TM
Package
17MHz to 170MHz
Resistor Set SOT-23 Oscillator
■
High Frequency Precision Oscillator
■
High Speed Data Bus Clock
■
Fixed Crystal Oscillator Replacement
■
Ceramic Oscillator Replacement
The LTC
6905 precision, programmable silicon oscillator
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, R
SET
, 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 R
SET
value.
The LTC6905 features a proprietary feedback loop that
linearizes the relationship between R
SET
and frequency,
eliminating the need for tables to calculate frequency. The
oscillator can be easily programmed using the simple
formula outlined below:
f
MHz
R
SET
k
MHz
N
N
Open
GND
OSC
=
+
=
=
=
=
+
168 5
10
1 5
.
1
1
2
4
.
,
,
,
,
DIVPin
DIVPin
DIVPin
V
For higher accuracy, fixed frequency versions that include
an internal frequency-setting resistor, see the LTC6905-
XXX Series datasheet.
Basic Connection
Typical Distribution of Frequency Error, T
A
= 25
°
C
60
V
+
= 3V
R
= 12k
DIV = 1
DESCRIPTIOU
FEATURES
APPLICATIU
TYPICAL APPLICATIO
U
V
+
1
2
3
5
17.225MHz
≤
f
OSC
≤
170MHz
5V
5V
10k
≤
R
SET
≤
25k
0.1
μ
F
6905 TA01
4
GND
LTC6905
SET
OUT
DIV
OPEN
÷
2
÷
1
÷
4
% ERROR
–0.5
0
U
10
20
30
40
50
NOTE: RESISTOR, R
, TOLERANCE WILL ADD
TO THE FREQUENCY ERROR
–0.3
–0.1
0.1
0.3
6905 TA02
0.5
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|---|---|
| LTC6905 | 17MHz to 170MHz Resistor Set SOT-23 Oscillator |
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| LTC6911CMS-1 | Dual Matched Amplifiers with Digitally Programmable Gain in MSOP |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC6905IS5#PBF | 制造商:Linear Technology 功能描述:Silicon Oscillator 5-Pin TSOT-23 制造商:Linear Technology 功能描述:OSCILLATOR 17MHZ TO 170MHZ SMD 制造商:Linear Technology 功能描述:OSCILLATOR, 17MHZ TO 170MHZ, SMD |
| LTC6905IS5#TR | 制造商:Linear Technology 功能描述:Silicon Oscillator 5-Pin TSOT-23 T/R |
| LTC6905IS5#TRMPBF | 功能描述:IC OSC SILICON 170MHZ TSOT23-5 RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 可編程計(jì)時(shí)器和振蕩器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:45 系列:- 類型:溫度 - 補(bǔ)償晶體振蕩器（TCXO） 計(jì)數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:16-SOIC W 安裝類型:表面貼裝 |
| LTC6905IS5#TRPBF | 功能描述:IC OSC SILICON 170MHZ TSOT23-5 RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 可編程計(jì)時(shí)器和振蕩器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:45 系列:- 類型:溫度 - 補(bǔ)償晶體振蕩器（TCXO） 計(jì)數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:16-SOIC W 安裝類型:表面貼裝 |
| LTC6905IS5-100 | 制造商:Linear Technology 功能描述:FIXED FREQUENCY SOT-23 OSCILLATOR |
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