參數(shù)資料
型號: 24850
英文描述: Parasite-Power Digital Thermometer
中文描述: Socket 754的設(shè)計和資格要求
文件頁數(shù): 38/40頁
文件大?。?/td> 2405K
代理商: 24850
Socket 754 Design and Qualification Requirements
24850 Rev. 3.07 August 2003
Table 3. Summary of Required Measurements for the Socket 754 (Continued)
Measured
Quantity
Mated capacitance
between two
nearest pins (i.e.,
pins separated by
shortest distance).
Definition
Specified
Value(s)
One pF max.
Measurement
Applicable
Standard
Use the EIA-364-30
standard for low
frequency (10 MHz)
measurements. Or,
use the network
analyzer for S-
parameter
measurements with
minimum frequency
of 500 MHz or lower.
See Section 7.5.1,
Test Procedures, on
page 35
The capacitance
between two
nearest mated pins.
Capacitance between
two nearest pins
measured from the top
or bottom side of the
socket. The pins are
not to be shorted
together for this
measurement.
Mated capacitance
matrix of three
neighboring pins.
The matrix is
defined as the
Maxwell (not
circuit)
capacitance matrix
The capacitance
matrix of three
neighboring pins
that are in the same
pattern as those
used to extract the
mated partial
inductance matrix.
All entries in the
matrix should not
exceed 1pF.
The Maxwell
capacitance matrix
measured for the
specified mated three-
pin configurations.
Note
: The pins are not
to be shorted
together for
this
measurement.
Use the EIA-364-30
standard for low
frequency (10MHz)
measurements. Or,
use the network
analyzer for S-
parameter
measurements with
minimum frequency
of 500 MHz or lower.
See Section 7.5.1,
Test Procedures, on
page 35
Differential
impedance
between two
nearest pins (i.e.,
pins separated by
shortest distance).
The transmission
line impedance of
the odd mode for
three mated pins,
using one pin as the
voltage/current
reference.
100
±
10%
with an
additional ± 2-
measurement
error
The differential (or an
odd mode) impedance
measured for a three-
pin configuration (S1,
S2, G).
If equipment permits,
this quantity may be
measured directly. If
not, it can be calculated
from the measured
mated partial “l(fā)oop”
inductance and
Maxwell capacitance
matrices according to
equations provided in
this document.
Use the EIA-364-108
standard or see the
equations in terms of
partial inductance and
Maxwell capacitance
matrices, Section 7.5,
Capacitance, on page
35.
If the time domain
method is used in
measurement, then the
signal should have
rise time of 35 to 150
ps for signal
amplitude to go from
10 – 90%.
38
Electrical Qualification Requirements
Chapter 7
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