参数资料
| 型号： | LTC6903HMS8#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC OSC SILICON 68MHZ 8MSOP |
| 标准包装： | 2,500 |
| 类型： | 振荡器 - 硅 |
| 频率： | 1kHz ~ 68MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 7mA |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP |
| 安装类型： | 表面贴装 |
LTC6903/LTC6904
1
69034fe
Typical applicaTion
FeaTures
applicaTions
DescripTion
1kHz to 68MHz Serial
Port Programmable Oscillator
TheLTC6903/LTC6904arelowpowerselfcontaineddigital
frequency sources providing a precision frequency from
1kHz to 68MHz, set through a serial port. The LTC6903/
LTC6904 require no external components other than a
power supply bypass capacitor, and they operate over a
single wide supply range of 2.7V to 5.5V.
TheLTC6903/LTC6904featureaproprietaryfeedbackloop
that linearizes the relationship between digital control set-
ting and frequency, resulting in a very simple frequency
setting equation:
f
Hz
DAC
kHzf
MHz
OCT
=
<<
2
2078
2
1024
168
()
–
;
where OCT is a 4-bit digital code and DAC is a 10-bit
digital code.
The LTC6903 is controlled by a convenient SPI compatible
serial interface. The LTC6904 uses an industry standard
I2C compatible interface.
A Microcontroller Controlling Its Clock
n
Precision Digitally Controlled Oscillator
n
Power Management
n
Direct Digital Frequency Synthesis (DDS)
Replacement
n
Replacement for DAC and VCO
n
Switched Capacitor Filter Clock
n
1kHz to 68MHz Square Wave Output
n
0.5% (Typ) Initial Frequency Accuracy
n
Frequency Error <1.1% Over All Settings
n
10ppm/°C Typical Frequency Drift Over
Temperature
n
0.1% Resolution
n
1.7mA Typical Supply Current (f < 1MHz, VS = 2.7V)
n
2.7V to 5.5V Single- Supply Operation
n
Jitter <0.4% Typical 1kHz to 8MHz
n
Easy to Use SPI (LTC6903) or I2C (LTC6904) Serial
Interface
n
Output Enable Pin
n
–55°C to 125°C Operation
n
MS8 Package
PIC16F73
MICROCONTROLLER
VDD
VSS
RC2/CCP1
VSS
RC5/SDO
RC3/SCK/SCL
LTC6903
0.01F
GND
SDI
SCK
SEN
POWER-UP CLOCK
FREQUENCY IS 1039Hz
V+
5V
10
10k
5V
OE
CLK
69034 TA01
CLK
OSC2/CLKOUT
OSC1/CLKIN
MCLR/VP–P
1F
0.1F
FREQUENCY ERROR (%)
–1.0
UNITS
40
30
20
10
0
–0.5
69034 TA01b
0
0.5
1.0
VS = 3V
TA = 25°C
f = 1039Hz
443
UNITS
TESTED
LTC6903 Frequency Error
Distribution
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners. Protected by U.S. Patents, including 6342817 and 6614313.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6903IMS8 | 功能描述:IC OSC SILICON 68MHZ 8MSOP 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 |
| LTC6903IMS8#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:- 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 |
| LTC6903IMS8#TR | 功能描述:IC OSC SILICON 68MHZ 8MSOP 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 |
| LTC6903IMS8#TRPBF | 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:- 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 |
| LTC6904 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1kHz to 68MHz Serial Port Programmable Oscillator |
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