參數(shù)資料
型號(hào): VT73127
廠商: Vaishali Semiconductor
英文描述: 27 MHz 3.3V VCXO with Output Enable
中文描述: 27兆赫3.3V的輸出壓控啟用
文件頁(yè)數(shù): 1/4頁(yè)
文件大?。?/td> 39K
代理商: VT73127
2001-08-06
Page
1
MDST-0012-02
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063
Applications
=
Crystal-driven clock source
General Description
The Vaishali VT73127 is a single-chip, low-jitter Voltage-Controlled-Crystal-Oscillator. The device accepts
a 27 MHz, 20 pF crystal input, and produces a low jitter output at the same frequency. The output is
enabled when OE is logic HIGH and goes into high impedance state when OE is logic LOW. A 0 to 3.0V
control signal is used to fine tune the output clock frequency in the ±100ppm range.
Features
=
3.3V operating voltage
=
Uses inexpensive pullable crystals
=
12mA drive capability at TTL levels
=
Die only
=
=
On-chip oscillator with 200 ppm pull range (±100 ppm)
Active High output enable
Figure 1. Functional Block Diagram
Preliminary
VT73127
27 MHz 3.3V VCXO with Output Enable
CLK
OE
VDD2
X2
Load Cap Control
Output
Buffer
Load
Caps
VDD1
27 MHz
Pullable
Crystal
VIN
X1
GND
GND
Oscillator
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