参数资料
型号: ICS85356AMILF
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: 85356 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20
封装: 7.50 X 12.80 MM, 2.30 MM HEIGHT, ROHS COMPLIANT, MS-013, MO-119, SOIC-20
文件页数: 12/15页
文件大小: 807K
代理商: ICS85356AMILF
ICS85356I
2:1, DIFFERENTIAL-TO-3.3V LVPECL/ECL CLOCK MULTIPLEXER
IDT / ICS 3.3V LVPECL/ECL CLOCK MULTIPLEXER
6
ICS85356AMI REV. B FEBRUARY 14, 2008
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 = VCC/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 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 VCC = 3.3V, V_REF should be 1.25V and
R2/R1 = 0.609.
Figure 1. Single-Ended Signal Driving Differential Input
Recommendations for Unused Input and Output Pins
Inputs:
CLK/nCLK INPUTS
For applications not requiring the use of the differential input, both
CLK and nCLK can be left floating. Though not required, but for
additional protection, a 1k
resistor can be tied from CLK to
ground.
Control Pins
All control pins have internal pull-ups or pull-downs; additional
resistance is not required but can be added for additional
protection. A 1k
resistor can be used.
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.
V_REF
Single Ended Clock Input
VCC
CLKx
nCLKx
R1
1K
C1
0.1u
R2
1K
相关PDF资料
PDF描述
ICS85356AMT LOW SKEW CLOCK DRIVER, PDSO20
ICS85356AGLFT LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20
ICS85356AGLF LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20
ICS85357AGI-01 85357 SERIES, 4 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO20
ICS85357AGI-01T 85357 SERIES, 4 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO20
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