参数资料
型号: ICS8536AGI-33LFT
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟产生/分配
英文描述: 266 MHz, OTHER CLOCK GENERATOR, PDSO20
封装: 6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-20
文件页数: 15/15页
文件大小: 603K
代理商: ICS8536AGI-33LFT
8536AGI-33
www.icst.com/products/hiperclocks.html
REV. A MARCH 16, 2006
9
Integrated
Circuit
Systems, Inc.
ICS8536I-33
LOW SKEW, 1-TO-6, CRYSTAL OSCILLATOR/
LVCMOS-TO-3.3V LVPECL/LVCMOS FANOUT BUFFER
PRELIMINARY
APPLICATION INFORMATION
Figure 2. CRYSTAL INPUt INTERFACE
CRYSTAL INPUT INTERFACE
The ICS8536I-33 has been characterized with 18pF paral-
lel resonant crystals. The capacitor values, C1 and C2,
shown in Figure 2 below were determined using an 18pF
parallel resonant crystal and were chosen to minimize
the ppm error. These same capacitor values will tune any
18pF parallel resonant crystal over the frequency range
and other parameters specified in this data sheet. The
optimum C1 and C2 values can be slightly adjusted for
different board layouts.
C1
18p
X1
18pF Parallel Crystal
C2
22p
XTAL_IN
XTAL_OUT
INPUTS:
CRYSTAL INPUT:
For applications not requiring the use of the crystal oscillator
input, both XTAL_IN and XTAL_OUT can be left floating.
Though not required, but for additional protection, a 1k
Ω
resistor can be tied from XTAL_IN to ground.
CLK INPUT:
For applications not requiring the use of a clock input, it can
be left floating. Though not required, but for additional
protection, a 1k
Ω resistor can be tied from the CLK input to
ground.
LVCMOS 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
Ω resistor can be used.
RECOMMENDATIONS FOR UNUSED INPUT AND OUTPUT PINS
OUTPUTS:
LVCMOS OUTPUT:
All unused LVCMOS output can be left floating. There should
be no trace attached.
LVPECL OUTPUT
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.
相关PDF资料
PDF描述
ICS8536CGI-33T 266 MHz, OTHER CLOCK GENERATOR, PDSO20
ICS8536CGI-33LF 266 MHz, OTHER CLOCK GENERATOR, PDSO20
ICS8537AY-01LFT 8537 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48
ICS8537AY-01T 8537 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48
ICS8537AY-01 LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48
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