VCXO: 电压控制震荡器
A VCXO (Voltage Controlled Crystal Oscillator) is a crystal oscillator the output frequency of which is controlled by adding an external control voltage via a frequency control input on a variable capacitance component such as a varactor diode connected in parallel to a load capacitance (CL). Epson VCXOs are divided into two types according to Voltage-Frequency (V-F) characteristic slopes depending on the AFC (Automatic Frequency Control) input configuration of the VCXO. One is a VCXO with a positive V-F slope and the other is a VCXO with a negative V-F slope. Please note that the input voltage of a control circuit will vary according to the individual type, as shown in Figs. 3 and 4. Epson's VCXOs are capable of either, depending on the customer's preference. Epson's VCXOs have been increasingly used for broader applications such as slave oscillators in phased-lock loops, or frequency modulators. Among the above types, a VCXO combined with a TCXO is called a VC-TCXO , respectively. These components have the merit of delicately controlling their output frequency electrically.
VCXO: 电压控制震荡器
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VG-4513CAVG-4513CBVG5032EDNVG5032VDNVG2520CANVG7050CANVG-4231CEVG-4231CBVG-4231CAVG-4501CAVG-4502CAVG-4512CAVG7050EBNVG-4232CA
可编程压控晶体振荡器
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7.0 x 5.0
x1.5 LV-
PECL 50 to 800 Single +/- 50 / -40 to +85 2.5 +/-1.25
3.3 +/- 0.33 +/- 180 1.25 +/- 1.00
(Vcc 2.5V)
1.65 +/- 1.35
(Vcc 3.3V) RoHSpdfREACHpdf pdfpdf pdf cart
7.0 x 5.0
x1.5 LV-
PECL 50 to 800 Quad +/- 50 / -40 to +85 2.5 +/-1.25
3.3 +/- 0.33 +/- 180 1.25 +/- 1.00
(Vcc 2.5V)
1.65 +/- 1.35
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电压控制的SAW晶体振荡器
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型号外部尺寸
[ mm ]输出频率范围
[ MHz ]电源电压
[ V ] Typ.频率温度特征 /
(频率公差/工作温度)
[ x10^-6 / ℃ to ℃ ]频率控制范围
[ x10^-6 ] Min.压控电压
[ V ]RoHS
REACHBrief SheetWeb库存EV7050EANEV1409EANEV1409SANEV1409ESNEV-9100JG
7.0x5.0
x1.6 LV-PECL 600 to 1100
1200 to 2200 3.3 -100 to +100 / -10 to 85
-120 to +120 / -40 to 85 +/- 50
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14.0x9.0
x2.6 LV-PECL 1000 to 3000 3.3 -70 to +120 / -10 to 85 +/- 50 1.65+/-1.65 RoHSpdfREACHpdf pdf cart
14.0x9.0
x2.6 Sine wave 1000 to 2500 3.3 -70 to +120 / -10 to 85 +/- 50 1.65+/-1.65 RoHSpdfREACHpdf pdf cart
14.0x9.0
x2.8 LV-PECL
(Frequency
Selectable) 1500 to 2200 3.3 -70 to +120 / -10 to 85 +/- 50 1.65+/-1.65 RoHSpdfREACHpdf pdf cart
13.9x9.8
x4.7 Sine wave
LV-PECL 800 to 2500 3.3 -100 to +150 / -40 to 85
-100 to +150 / -20 to 70
-100 to +150 / -10 to 85 +/- 50 1.65+/-1.65 RoHSpdfREACHpdf pdf cart
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