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參數(shù)資料
| 型號： | 853S12AKILFT |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 853S SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC32 |
| 封裝： | 5 MM X 5 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-220VHHD-2, VFQFN-32 |
| 文件頁數(shù)： | 15/17頁 |
| 文件大小： | 328K |
| 代理商： | 853S12AKILFT |
IDT / ICS LVPECL FANOUT BUFFER
7
ICS853S12AKI REV. A MAY 21, 2008
ICS853S12I
LOW SKEW, 1-TO-12, DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER
APPLICATION INFORMATION
WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE ENDED LEVELS
Figure 1 shows how the differential input can be wired to accept
single ended levels. The reference voltage V_REF = V
CC
/2 is
generated by the bias resistors R1, R2 and C1. This bias circuit
should be located as close as possible to the input pin. The ratio
FIGURE 1. SINGLE ENDED SIGNAL DRIVING DIFFERENTIAL INPUT
of R1 and R2 might need to be adjusted to position the V_REF in
the center of the input voltage swing. For example, if the input
clock swing is only 2.5V and V
CC
= 3.3V, V_REF should be 1.25V
and R2/R1 = 0.609.
OUTPUTS:
LVPECL OUTPUTS:
All unused LVPECL outputs can be left floating. We recommend
that there is no trace attached. Both sides of the differential output
pair should either be left floating or terminated.
RECOMMENDATIONS FOR UNUSED OUTPUT PINS
Single Ended Clock Input
VCC
PCLK
nPCLK
R1
C1
0.1u
R2
1K
V_REF
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| 853S12AKIT | 853S SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC32 |
| 853S12AKI | 853S SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC32 |
| 8550D | 1500 mA, 25 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92 |
| 8550C | 1500 mA, 25 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92 |
| 8550SG-E-T92-B | 700 mA, 20 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92 |
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| 853S310AVILF | 制造商:Integrated Device Technology Inc 功能描述:CLOCK DRVR - Rail/Tube |
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| 853S314AFILFT | 功能描述:時鐘驅(qū)動器及分配 RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| 853S314AGILF | 功能描述:時鐘驅(qū)動器及分配 RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
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