1AI01 datasheet(9/14 Pages) ICST

tên linh kiện	1AI01

Giải thích chi tiết về linh kiện	FEMTOCLOCKS-TM CRYSTAL-TO-3.3V, 2.5V 125MHZ LVPECL CLOCK GENERATOR

PDF	14 Pages

Scroll/Zoom	100%

nhà sản xuất	ICST [Integrated Circuit Systems]

Trang chủ	http://www.icst.com

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843021AGI-01

www.icst.com/products/hiperclocks.html

REV. A NOVEMBER 30, 2004

Integrated

Circuit

Systems, Inc.

ICS843021I-01

FEMTOCLOCKS™CRYSTAL-TO-3.3V, 2.5V

125MHZ LVPECL CLOCK GENERATOR

PRELIMINARY

APPLICATION SCHEMATIC

Figure 4 shows an example of ICS843021I-01 application

schematic. In this example, the device is operated at

CC = 3.3V. The decoupling capacitor should be located as

close as possible to the power pin. The input is driven by a

25MHz quartz crystal. For the LVPECL output drivers, only

two termination examples are shown in this schematic.

Additional termination approaches are shown in the LVPECL

Termination Application Note.

FIGURE 4. ICS843021I-01 SCHEMATIC EXAMPLE

Zo = 50

Optional Termination

.1uF

VCC = 3.3V

Zo = 50 Ohm

133

25MHz

843021I-01

VCC

XTAL_OUT

XTAL_IN

VEE

nQO

Vcc

133

82.5

27pF

Zo = 50

27pF

82.5

Zo = 50 Ohm

VCC

18pF

10uF

3.3V

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