参数资料
型号: ICS889871AKLF
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: 889871 SERIES, LOW SKEW CLOCK DRIVER, 3 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQCC16
封装: 3 X 3 MM, 0.95 MM HEIGHT, ROHS COMPLIANT, MO-220, VFQFN-16
文件页数: 17/17页
文件大小: 2105K
代理商: ICS889871AKLF
IDT / ICS LVPECL BUFFER/DIVIDER W/INTERNAL TERMINATION
9
ICS889871AK REV A JULY 28, 2006
ICS889871
DIFFERENTIAL-TO-3.3V, 2.5V LVPECL BUFFERN/DIVIDER W/INTERNAL TERMINATION
2.5V LVPECL INPUT WITH BUILT-IN 50
TERMINATIONS INTERFACE
The IN /nIN with built-in 50
terminations accepts LVDS, LVPECL,
LVHSTL, CML, SSTL and other differential signals. Both V
SWING
and V
OH
must meet the V
PP
and V
CMR
input requirements
Figures 3A to 3E show interface examples for the HiPerClockS
IN/nIN input with built-in 50
terminations driven by the most
common driver types. The input interfaces suggested here are
examples only. If the driver is from another vendor, use their
termination recommendation. Please consult with the vendor of
the dr iver component to confir m the dr iver ter mination
requirements.
FIGURE 3A. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
DRIVEN BY AN LVDS DRIVER
FIGURE 3B. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
DRIVEN BY AN LVPECL DRIVER
IN
nIN
VT
2.5V
LVDS
3.3V or 2.5V
Zo = 50 Ohm
Receiver
With
Built-In
50 Ohm
Zo = 50 Ohm
Receiver
With
Built-In
50 Ohm
Zo = 50 Ohm
IN
nIN
VT
2.5V
R1
18
2.5V LVPECL
FIGURE 3E. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
DRIVEN BY AN SSTL DRIVER
FIGURE 3C. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
DRIVEN BY AN OPEN COLLECTOR
CML DRIVER
FIGURE 3D. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
DRIVEN BY A CML DRIVER
WITH
BUILT-IN 50
PULLUP
Zo = 50 Ohm
2.5V
Zo = 50 Ohm
IN
nIN
VT
Receiver
With
Built-In
50 Ohm
2.5V
CML - Open Collector
IN
nIN
VT
Receiver
With
Built-In
50 Ohm
2.5V
Zo = 50 Ohm
CML - Built-in 50 Ohm Pull-up
2.5V
SSTL
R1
25
R2
25
IN
VT
nIN
Receiver With Built-In 50
Zo = 50 Ohm
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