参数资料
型号: ICS8532BY-01T
元件分类: 时钟及定时
英文描述: 8532 SERIES, LOW SKEW CLOCK DRIVER, 16 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52
封装: 10 X 10 MM, 1.40 MM HEIGHT, MS-026, LQFP-52
文件页数: 14/14页
文件大小: 108K
代理商: ICS8532BY-01T
8532BY-01
www.icst.com/products/hiperclocks.htlm
REV. A JUNE 26, 2002
9
Integrated
Circuit
Systems, Inc.
ICS8532BY-01
LOW SKEW, 1-TO-17
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
The clock layout topology shown below is a typical termina-
tion for LVPECL outputs. The two different layouts mentioned
are recommended only as guidelines.
FOUT and nFOUT are low impedance follower outputs that gen-
erate ECL/LVPECL compatible outputs. Therefore, terminating
resistors (DC current path to ground) or current sources must
be used for functionality. These outputs are designed to drive
3.3V
F
OUT
F
IN
5
2 Zo
Z
o
5
2
Z
o
3
2
Z
o
3
2
Z
o = 50
Z
o = 50
RTT =
1
(V
OH + VOL / VCC –2) –2
Z
o
Z
o = 50
Z
o = 50
50
50
RTT
V
CC - 2V
F
IN
F
OUT
50
transmission lines. Matched impedance techniques should
be used to maximize operating frequency and minimize signal
distortion.
Figures 3A and 3B show two different layouts which
are recommended only as guidelines. Other suitable clock lay-
outs may exist and it would be recommended that the board
designers simulate to guarantee compatibility across all printed
circuit and clock component process variations.
TERMINATION FOR LVPECL OUTPUTS
FIGURE 3B - LVPECL OUTPUT TERMINATION
FIGURE 3A - LVPECL OUTPUT TERMINATION
相关PDF资料
PDF描述
ICS8532BY-01LF 8532 SERIES, LOW SKEW CLOCK DRIVER, 16 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52
ICS8532BY-01LF 8532 SERIES, LOW SKEW CLOCK DRIVER, 16 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52
ICS8532BY-01LFT 8532 SERIES, LOW SKEW CLOCK DRIVER, 16 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52
ICS853310AV 853310 SERIES, LOW SKEW CLOCK DRIVER, 8 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQCC28
ICS853310AVT 853310 SERIES, LOW SKEW CLOCK DRIVER, 8 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQCC28
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