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參數資料
| 型號： | LTC1799IS5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號調理 |
| 英文描述： | 1kHz to 30MHz Resistor Set SOT-23 Oscillator |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO5 |
| 封裝： | PLASTIC, MO-193, TSOT-23, 5 PIN |
| 文件頁數： | 1/4頁 |
| 文件大?。?/td> | 120K |
| 代理商： | LTC1799IS5 |
LTC1799
1
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
One External Resistor Sets the Frequency
I
1kHz to 30MHz Frequency Range
I
SOT-23 Miniature Package
I
Frequency Error
≤
1.5% 5kHz to 20MHz
(T
A
= 25
°
C)
I
Frequency Error
≤
2% 5kHz to 20MHz
(T
A
= 0
°
C to 70
°
C)
I
±
40ppm/
°
C Temperature Stability
I
0.05%/V Supply Stability
I
50%
±
1% Duty Cycle 1kHz to 2MHz
I
50%
±
5% Duty Cycle 2MHz to 20MHz
I
1mA Typical Supply Current
I
100
CMOS Output Driver
I
Operates from a Single 2.7V to 5.5V Supply
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
1kHz to 30MHz
Resistor Set SOT-23 Oscillator
January 2001
Final Electrical Specifications
I
Low Cost Precision Oscillator
I
Charge Pump Driver
I
Switching Power Supply Clock Reference
I
Clocking Switched Capacitor Filters
I
Fixed Crystal Oscillator Replacement
I
Ceramic Oscillator Replacement
I
Small Footprint Replacement for Econ Oscillators
APPLICATIOU
The LTC
1799 is a precision oscillator that is easy to use
and occupies very little PC board space. The oscillator
frequency is programmed by a single external resistor
(R
SET
). The LTC1799 has been designed for high accuracy
operation (
≤
1.5% frequency error) without the need for
external trim components.
The LTC1799 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. The frequency-setting
resistor can vary from 3.32k to 1M to select a master
oscillator frequency between 100kHz and 30MHz (5V
supply). The three-state DIV input determines whether the
master clock is divided by 1, 10 or 100 before driving the
output, providing three frequency ranges spanning 1kHz
to 30MHz (5V supply). The LTC1799 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 pro-
grammed using the simple formula outlined below:
V+
1
2
3
5
5kHz
≤
f
OSC
≤
20MHz
V
+
V
+
GND
5k
≤
R
SET
≤
200k
0.1
μ
F
1799 TA01
4
GND
LTC1799
SET
OUT
DIV
Hi-Z
÷
10
÷
100
÷
10
U
25
20
15
10
5
0
–1.25
–0.75
–0.25 0 0.25
FREQUENCY ERROR (%)
0.75
1.25
1799 TA02
Basic Connection
Typical Distribution of Frequency Error, T
A
= 25
°
C
f
MHz
k
N R
N
Hi Z
-
GND
OSC
SET
=
=
=
=
=
+
10
10
100
10
1
,
,
,
,
DIVPIN
DIVPIN
DIVPIN
V
SOT-23 Actual Size
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC1799IS5#PBF | 制造商:Linear Technology 功能描述:1KHZ TO 33MHZ RESISTOR SET SOT-23 OSCILLATOR 制造商:Linear Technology 功能描述:IC, OSCILLATOR; Operating Mode:-; Frequency:33MHz; Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; Digital IC Case Style:TSOT-23; No. of Pins:5; Clock External Input:No; Operating Temperature Min:-40C; MSL:MSL 1 - Unlimited ;RoHS Compliant: Yes |
| LTC1799IS5#TR | 功能描述:IC OSC SILICON 33MHZ TSOT23-5 RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器（TCXO） 計數:- 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 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝 |
| LTC1799IS5#TRM | 功能描述:IC OSC SILICON 33MHZ TSOT23-5 RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器（TCXO） 計數:- 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 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝 |
| LTC1799IS5#TRMPBF | 功能描述:IC OSC SILICON 33MHZ TSOT23-5 RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:- 標準包裝:3,000 系列:- 類型:振蕩器 - 晶體 計數:- 頻率:- 電源電壓:2.3 V ~ 5.5 V 電流 - 電源:1.07mA 工作溫度:-30°C ~ 80°C 封裝/外殼:SOT-665 包裝:帶卷 (TR) 供應商設備封裝:SS迷你型-5D 安裝類型:表面貼裝 其它名稱:AN8955SSMTXLTR |
| LTC1799IS5#TRPBF | 功能描述:IC OSC SILICON 33MHZ TSOT23-5 RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器（TCXO） 計數:- 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 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝 |
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