参数资料
| 型号： | LTC6902IMS#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC OSC SILICON 20MHZ 10MSOP |
| 标准包装： | 2,500 |
| 类型： | 振荡器 - 硅 |
| 频率： | 100kHz ~ 20MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 2.5mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-MSOP |
| 安装类型： | 表面贴装 |
LTC6902
1
6902f
s
2-, 3- or 4-Phase Outputs
s
Optional Spread Spectrum Frequency Modulation
for Improved EMC Performance
s
5kHz to 20MHz Frequency Range
s
One External Resistor Sets the Frequency
s
One External Resistor Sets Percent Frequency
Spreading
s
400
A Typical Supply Current, VS = 3V, 1MHz
s
Frequency Error
≤1.5% Max, 5kHz to 10MHz
(TA = 25°C)
s
Frequency Error
≤2% Max, 5kHz to 10MHz
(TA = 0°C to 70°C)
s
±40ppm/°C Temperature Stability
s
Fast Start-Up Time: 50
s to 1.5ms
s
100
CMOS Output Driver
s
Operates from a Single 2.7V to 5.5V Supply
s
Available in 10-Lead MS Package
Multiphase Oscillator
with Spread Spectrum
Frequency Modulation
s
Switching Power Supply Clock Reference
s
Portable and Battery-Powered Equipment
s
PDAs
s
Cell Phones
s
Clocking Switched Capacitor Filters
The LTC
6902 is a precision, low power and easy-to-use
oscillator that provides multiphase outputs in a small
package. The oscillator frequency is set by a single exter-
nal resistor (RSET). The LTC6902 also provides an optional
spread spectrum frequency modulation (SSFM) capability
that can be activated and controlled by an additional
external resistor (RMOD).
The LTC6902’s master oscillator is controlled by the RSET
resistor and has a range of 100kHz and 20MHz. In order
to accommodate a wider output frequency range, a pro-
grammable divider (divide by 1, 10 or 100) is included.
The integrated programmable multiphase circuit pro-
vides either 2-, 3- or 4-phase waveforms.
The LTC6902’s SSFM capability modulates the oscillator’s
frequency by a pseudorandom noise (PRN) signal to
spread the oscillator’s energy over a wide frequency band.
This spreading decreases the peak electromagnetic radia-
tion level and improves electromagnetic compatibility
(EMC) performance. The amount of frequency spreading
is programmable by a single additional external resistor
(RMOD) and is disabled by grounding the MOD pin.
, LTC and LT are registered trademarks of Linear Technology Corporation.
V+
DIV
PH
OUT1
OUT2
OUT4
OUT3
OUT2
OUT1
SET
MOD
GND
OUT4
OUT3
LTC6902
RSET 10k
RMOD 10k
5V
OPEN
6902 TA01
0.1
F
DESCRIPTIO
U
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
500kHz, 4-Phase Clock with 20% Frequency Spreading
FREQUENCY (kHz)
RELATIVE
AMPLITUDE
(dBm)
–40
–20
0
6902 TA02
–60
–80
–100
400
450
550
600
500
OUTPUT
SPECTRUM
WITH 20%
SPREADING
OUTPUT
SPECTRUM
WITH SSFM
DISABLED
Output Frequency Spectrum With and Without SSFM
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6903 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1kHz to 68MHz Serial Port Programmable Oscillator |
| LTC6903_12 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1kHz to 68MHz Serial Port Programmable Oscillator |
| LTC6903CMS8 | 功能描述:IC OSC SILICON 68MHZ 8-MSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 可编程计时器和振荡器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:45 系列:- 类型:温度 - 补偿晶体振荡器（TCXO） 计数:- 频率:25MHz 电源电压:3.135 V ~ 3.465 V 电流 - 电源:1.5mA 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 包装:管件 供应商设备封装:16-SOIC W 安装类型:表面贴装 |
| LTC6903CMS8#PBF | 功能描述:IC OSC SILICON 68MHZ 8-MSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 可编程计时器和振荡器 系列:- 标准包装:3,000 系列:- 类型:振荡器 - 晶体 计数:- 频率:- 电源电压:2.3 V ~ 5.5 V 电流 - 电源:1.07mA 工作温度:-30°C ~ 80°C 封装/外壳:SOT-665 包装:带卷 (TR) 供应商设备封装:SS迷你型-5D 安装类型:表面贴装 其它名称:AN8955SSMTXLTR |
| LTC6903CMS8#PBF | 制造商:Linear Technology 功能描述:Programmable Oscillator IC |
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