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參數(shù)資料
| 型號： | VTC4-C2CE-12M800 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | XO, clock |
| 英文描述： | Voltage Controlled Temperature Compensated Crystal Oscillator |
| 中文描述： | TCVCXO, CLIPPED SINE OUTPUT, 12.8 MHz |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 191K |
| 代理商： | VTC4-C2CE-12M800 |
VTC4 Data Sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
VCXO Functional Description
VCXO Feature
: The VTC4 can be ordered with a VCXO function for applications were it will be used in a
PLL, or the output frequency needs fine tune adjustments. This is a high impedance input, 1 Mohm, and can
be driven with an op-amp or terminated with adjustable resistors etc.
Pin 1 should not be left floating
on
the VCXO optional devices.
“No Adjust” Feature
: In applications were the VTC4 will be not be used in a PLL, or the output frequency
does not fine tune adjustments, the best device to use would be a VTC4-x0xxx. By using the “no adjust”
option, the circuit is simplified as Vc does not need to adjusted or set to a predetermined voltage and
pin 1
should be grounded
(pin 1 can be left open but should not be set to a voltage such as the supply).
Outline Diagrams, Pad Layout and Pin Out
Table 2. Pinout
Pin #
Symbol
Function
1
N/C
or
V
C
or VCXO Control Voltage
2
GND
Electrical and Case Ground
3
f
O
Output Frequency
4
V
DD
Supply Voltage
NOTE: Additional pads are used to program and adjust the TCXO during manufacturing and should be left
open; do not terminate these to the supply voltage. Some designs do not include these additional pads.
No Connect (VTC4-x0xx)
Contact Pads are gold over nickel
Figure 3, Package drawing
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