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| 型号： | ICS858020AKLFT |
| 元件分类： | 时钟及定时 |
| 英文描述： | 858020 SERIES, LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16 |
| 封装： | ROHS COMPLIANT, 3 X 3 MM, 0.95 MM HEIGHT, MO-220, VFQFN-16 |
| 文件页数： | 12/13页 |
| 文件大小： | 216K |
| 代理商： | ICS858020AKLFT |
858020AK
www.icst.com/products/hiperclocks.html
REV. A APRIL 24, 2006
8
Integrated
Circuit
Systems, Inc.
ICS858020
LOW SKEW, 1-TO-4
DIFFERENTIAL-TO-CML FANOUT BUFFER
LVPECL INPUT WITH BUILT-IN 50
Ω
Ω TERMINATION INTERFACE (3.3V)
The IN /nIN with built-in 50
Ω terminations accepts LVDS,
LVPECL, LVHSTL, CML, SSTL and other differential signals.
Both VSWING and VOH must meet the V
IH and VIL input require-
ments. Figures 2A to 2D show interface examples for the
HiPerClockS IN/nIN input with built-in 50
Ω terminations driven
by the most common driver types. The input interfaces sug-
gested here are examples only. If the driver is from another
vendor, use the termination they recommend. Please consult
with the vendor of the driver component to confirm the driver
termination requirements.
FIGURE 2A. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
Ω
Ω DRIVEN BY AN LVDS DRIVER
FIGURE 2B. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
Ω
Ω DRIVEN BY AN LVPECL DRIVER
FIGURE 2D. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
Ω
Ω DRIVEN BY A CML DRIVER
WITH
BUILT-IN 50
Ω
Ω PULLUP
3.3V
Zo = 50 Ohm
3.3V
LVDS
Receiver
With
Built-In
50 Ohm
IN
nIN
VT
Zo = 50 Ohm
R1
50
IN
nIN
VT
3.3V
Zo = 50 Ohm
Receiver
With
Built-In
50 Ohm
3.3V
LVPECL
Zo = 50 Ohm
FIGURE 2E. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
Ω
Ω DRIVEN BY AN SSTL DRIVER
3.3V
Receiver
With
Built-In
50 Ohm
Zo = 50 Ohm
IN
nIN
VT
3.3V
Zo = 50 Ohm
CML- Built-in 50 Ohm Pull-Up
FIGURE 2C. HIPERCLOCKS IN/nIN INPUT WITH
BUILT-IN 50
Ω
Ω DRIVEN BY A CML DRIVER
WITH
OPEN COLLECTOR
Zo = 50 Ohm
3.3V
R2
25
Receiver
With
Built-In
50 Ohm
IN
nIN
VT
SSTL
R1
25
3.3V
CML- Open Collector
IN
nIN
VT
Zo = 50 Ohm
Receiver
With
Built-In
50 Ohm
3.3V
Zo = 50 Ohm
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