參數(shù)資料
型號(hào): 853013AMLFT
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類(lèi): 時(shí)鐘及定時(shí)
英文描述: 853013 SERIES, LOW SKEW CLOCK DRIVER, 3 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20
封裝: 7.50 X 12.80 MM, 2.30 MM HEIGHT, ROHS COMPLIANT, MS-013, MO-119, SOIC-20
文件頁(yè)數(shù): 4/18頁(yè)
文件大?。?/td> 2109K
代理商: 853013AMLFT
ICS853013
LOW SKEW, DUAL,1-TO-3, DIFFERENTIAL-TO-2.5V, 3.3V, 5V LVPECL/ECL FANOUT BUFFER
IDT / ICS 2.5V, 3.3V, 5V LVPECL/ECL FANOUT BUFFER
12
ICS853013AM REV. B OCTOBER 24, 2008
Termination for 5V LVPECL Outputs
This section shows examples of 5V LVPECL output termination.
Figure 5A shows standard termination for 5V LVPECL. The
termination requires matched load of 50
resistors pull down to
VCC – 2V = 3V at the receiver. Figure 5B shows Thevenin
equivalence of Figure 5A. In actual application where the 3V DC
power supply is not available, this approached is normally used.
Figure 5A. 5V LVPECL Driver Termination Example
Figure 5B. 5V LVPECL Driver Termination Example
Zo = 50 Ohm
R2
50
Zo = 50 Ohm
5V
3V
PECL
+
-
R1
50
5V
PECL
R4
84
5V
Zo = 50 Ohm
R3
84
R2
125
5V
PECL
+
-
Zo = 50 Ohm
R1
125
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