参数资料
型号: 873034AMLFT
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: 873034 SERIES, LOW SKEW CLOCK DRIVER, 3 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16
封装: 7.50 X 10.30 MM, 2.30 MM HEIGHT, ROHS COMPLIANT, MS-012, SOIC-16
文件页数: 2/16页
文件大小: 298K
代理商: 873034AMLFT
873034AM
10
REV. A JANUARY 17, 2008
ICS873034
LOW SKEW, ÷2, ÷4, ÷8 DIFFERENTIAL-TO-
2.5V, 3.3V LVPECL/ECL CLOCK GENERATOR
PRELIMINARY
TERMINATION FOR 2.5V LVPECL OUTPUT
Figure 5A and Figure 5B show examples of termination for
2.5V LVPECL driver. These terminations are equivalent to ter-
minating 50
Ω to V
CC - 2V. For VCC = 2.5V, the VCC - 2V is very
close to ground level. The R3 in
Figure 5B can be eliminated
and the termination is shown in
Figure 5C.
FIGURE 5C. 2.5V LVPECL TERMINATION EXAMPLE
FIGURE 5B. 2.5V LVPECL DRIVER TERMINATION EXAMPLE
FIGURE 5A. 2.5V LVPECL DRIVER TERMINATION EXAMPLE
R2
62.5
Zo = 50 Ohm
R1
250
+
-
2.5V
2,5V LVPECL
Driv er
R4
62.5
R3
250
Zo = 50 Ohm
2.5V
VCC=2.5V
R1
50
R3
18
Zo = 50 Ohm
+
-
2,5V LVPECL
Driv er
VCC=2.5V
2.5V
R2
50
2,5V LVPECL
Driv er
VCC=2.5V
R1
50
R2
50
2.5V
Zo = 50 Ohm
+
-
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