參數(shù)資料
型號(hào): ICS83023AMILFT
元件分類: 時(shí)鐘及定時(shí)
英文描述: 83023 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
封裝: 3.80 X 4.80 MM, 1.47 MM HEIGHT, ROHS COMPLIANT, MS-012, SOIC-8
文件頁(yè)數(shù): 10/12頁(yè)
文件大小: 196K
代理商: ICS83023AMILFT
83023AMI
www.icst.com/products/hiperclocks.html
REV. B DECEMBER 12, 2005
7
Integrated
Circuit
Systems, Inc.
ICS83023I
DUAL, 1-TO-1
DIFFERENTIAL-TO-LVCMOS TRANSLATOR/BUFFER
APPLICATION INFORMATION
Figure 1 shows how the differential input can be wired to accept
single ended levels. The reference voltage V_REF = V
DD/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
FIGURE 1. SINGLE ENDED SIGNAL DRIVING DIFFERENTIAL INPUT
WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE ENDED LEVELS
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 V
DD = 3.3V, V_REF should
be 1.25V and R2/R1 = 0.609.
V_REF
R1
1K
C1
0.1u
R2
1K
Single Ended Clock Input
CLK
nCLK
VDD
INPUTS:
CLK/nCLK INPUT:
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
Ω resistor can be tied from
CLK to ground.
RECOMMENDATIONS FOR UNUSED INPUT AND OUTPUT PINS
OUTPUTS:
LVCMOS OUTPUT:
All unused LVCMOS output can be left floating. We
recommend that there is no trace attached.
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