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參數(shù)資料
| 型號(hào)： | 889832AKLF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 英文描述： | 889832 SERIES, LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16 |
| 封裝： | 3 X 3 MM, 0.95 MM PITCH, ROHS COMPLIANT, MO-220, VFQFN-16 |
| 文件頁(yè)數(shù)： | 11/11頁(yè) |
| 文件大小： | 1223K |
| 代理商： | 889832AKLF |
IDT / ICS LVDS FANOUT BUFFER
9
ICS889832AK REV. A
OCTOBER 21, 2008
ICS889832
LOW SKEW, 1-TO-4 DIFFERENTIAL-TO-LVDS FANOUT BUFFER
APPLICATION INFORMATION
LVPECL INPUT WITH BUILT-IN 50
Ω
Ω TERMINATIONS INTERFACE
The IN /nIN with built-in 50
Ω 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
1A to 1f 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 suggested here are examples
only. If the driver is from another vendor, use their termination
recommendation. Please consult with the vendor of the driver
component to confirm the driver termination requirements.
FIGURE 1A. HIPERCLOCKS IN/nIN INPUT WITH BUILT-IN 50
Ω
DRIVEN BY AN LVDS DRIVER
FIGURE 1B. HIPERCLOCKS IN/nIN INPUT WITH BUILT-IN 50
Ω
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 1E. HIPERCLOCKS IN/nIN INPUT WITH BUILT-IN 50
Ω
FIGURE 1C. HIPERCLOCKS IN/nIN INPUT WITH BUILT-IN 50
Ω
DRIVEN BY AN OPEN COLLECTOR CML DRIVER
FIGURE 1D. HIPERCLOCKS IN/nIN INPUT WITH BUILT-IN 50
Ω
DRIVEN BY A CML DRIVER WITH
BUILT-IN 50
Ω
Ω 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
FIGURE 1F. HIPERCLOCKS IN/nIN INPUT WITH BUILT-IN 50
Ω
DRIVEN BY A 3.3V CML DRIVER WITH
BUILT-IN PULLUP
2.5V
3.3V
Receiver with Built-In 50
Ω
Zo = 50 Ohm
C1
C2
IN
VT
nIN
REF_AC
50 Ohm
3.3V LVPECL
R5
100 - 200 Ohm
R5
100 - 200 Ohm
2.5V
3.3V
Receiver with Built-In 50
Ω
Zo = 50 Ohm
C1
C2
IN
VT
nIN
REF_AC
50 Ohm
3.3V CML with
Built-In Pullup
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