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LTC6905HS5-133#TRM PDF预览

LTC6905HS5-133#TRM

更新时间: 2024-02-04 04:08:14
品牌 Logo 应用领域
凌特 - Linear 机械振荡器
页数 文件大小 规格书
12页 161K
描述
LTC6905-XXX - Fixed Frequency SOT-23 Oscillator; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C

LTC6905HS5-133#TRM 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SOT包装说明:PLASTIC, SOT-23, 5 PIN
针数:5Reach Compliance Code:not_compliant
ECCN代码:EAR99风险等级:5.33
其他特性:TAPE AND REEL最长下降时间:0.5 ns
频率调整-机械:NO频率稳定性:20%
JESD-609代码:e0安装特点:SURFACE MOUNT
标称工作频率:133 MHz最高工作温度:125 °C
最低工作温度:-40 °C振荡器类型:CMOS
输出负载:5 pF物理尺寸:2.9mm x 1.75mm x 1.0mm
最长上升时间:0.5 ns最大供电电压:5.5 V
最小供电电压:2.7 V表面贴装:YES
最大对称度:52.5/47.5 %端子面层:Tin/Lead (Sn/Pb)
Base Number Matches:1

LTC6905HS5-133#TRM 数据手册

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LTC6905  
TYPICAL PERFORMANCE CHARACTERISTICS  
ROUT vs V+  
Jitter vs Frequency  
Frequency vs Temperature  
1.0  
0.8  
45  
40  
35  
30  
25  
20  
15  
10  
5
1.20  
1.00  
0.6  
÷4  
÷2  
÷1  
0.4  
0.80  
0.2  
0
0.60  
0.40  
–0.2  
–0.4  
–0.6  
–0.8  
–1.0  
0.20  
0
0
–40 –20  
0
20 40 60 80 100 120  
TEMPERATURE (°C)  
0
20 40 60 80 100 120 140 160 180  
FREQUENCY (MHz)  
2.5  
3
3.5  
4
5.5  
4.5  
5
SUPPLY VOLTAGE (V)  
6905 G08  
6905 G05  
6905 G04  
LTC6905 Output Operating at  
17.5MHz, VS = 3V  
LTC6905 Output Operating at  
170MHz, VS = 3V  
1V/DIV  
1V/DIV  
6905 G06  
6905 G07  
12.5ns/DIV  
1ns/DIV  
PIN FUNCTIONS  
+
+
+
V (Pin 1): Voltage Supply (2.7V ≤ V ≤ 5.5V). This sup-  
ply must be kept free from noise and ripple. It should be  
bypassed directly to the GND (Pin 2) with a 0.1μF capaci-  
tor or higher.  
of N in the frequency equation. Pin 4 should be tied to V  
for the ÷1 setting, the highest frequency range. Floating  
Pin 4 divides the master oscillator by 2. Pin 4 should  
be tied to GND for the ÷4 setting, the lowest frequency  
range. To detect a floating DIV pin, the LTC6905 attempts  
to pull the pin toward midsupply. This is realized with two  
GND (Pin 2): Ground. Should be tied to a ground plane  
for best performance.  
+
internal current sources, one tied to V and Pin 4 and the  
SET (Pin 3): Frequency-Setting Resistor Input. The value  
other one tied to ground and Pin 4. Therefore, driving  
the DIV pin high requires sourcing approximately 15μA.  
Likewise, driving DIV low requires sinking 11μA. When  
Pin 4 is floated, it should be bypassed by a 1nF capacitor  
to ground or it should be surrounded by a ground shield  
to prevent excessive coupling from other PCB traces.  
+
of the resistor connected between this pin and V deter-  
mines the oscillator frequency. The voltage on this pin is  
+
held by the LTC6905 to approximately 1V below the V  
voltage. For best performance, use a precision metal film  
resistor with a value between 10k and 25k and limit the  
capacitance on this pin to less than 10pF.  
OUT (Pin 5): Oscillator Output. This pin can drive 5kΩ  
and/or5pFloads.Forlargerloads,refertotheApplications  
DIV (Pin 4): Divider-Setting Input. This three-state input  
selectsamongthreedividersettings,determiningthevalue  
Information section.  
6905fd  
5

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