Section
1-7D15
SPECIFICATIONS
Introduction
The 7D15
is
a digital counter plug-in designed for use with
all
readout-equipped7000-SeriesOscilloscopemainframes.
It
will function in any plug-in compartment; however, in the vertical compartment, a selectable display
is
internally con-
nectedtothe oscilloscope. When used inthe horizontal compartment,mainframetriggers are available tothe 7D15.
The 7D15 has eight modes of operation: Frequency-DC to 225 MHz direct, Frequency Ratio-0 to
lo5
:1, Period-
10ns to
lo5
s,
Period Averaging- 10ps resolution,TIM- 10ns to
lo5
s,
TIM Averaging-I ns accuracy, Totalize-I to
lo8
events, Manual Stop Watch-to 10'
S.
The electrical specifications listed in the Performance Requirement column are valid over the stated environmental range
for instruments calibrated at an ambient temperature of +20°c to +30°c and after a five minute warmup unless otherwise
noted. The electrical specifications listed in the Supplemental Information column indicate typical instrumentoperationand
is not intendedto be construedas
a
requirement for proper instrumentoperation.
,
TABLE
1-1
ELECTRICAL CHARACTERISTICS
Refer to Figs.
1-2
through
1-7
at the rear of this section for additional accuracy information.
Characteristics
MEASUREMENT MODES
Frequency Mode
Range
Resolution
'
Accuracy
PeriodMode
Range
Resolution
'
Accuracy
Time Interval Mode
Range
Resolution
'
Accuracy (nominal)
Performance Requirement
DC to 225 megahertz
0.1 hertz minimum
Efreq (hertz)
=
*
TB X Fin
f
1IT
Efreq
(%)=
100% +TB+-
[
T X Fin
'
I
10 nanoseconds to
lo5
seconds with averaging times of XI to XI000 in decade
steps.
10 picoseconds maximum.
1
x
10-9
+
K
*
pCk
Eper (sec)
=
*
TB X Pin
+
M
[
*1X10-9*K*Pck
Eper
(%)
=
100%
+
TB
+
Pin X M
I
6
nanoseconds to
lo5
seconds with averaging times of X1 to X1000.
0.1 nanosecondusable.
ETI (sec)
=
TB
X
Pin
+
(pck/4~)
*
*
K
(~~~14~)
+
10-9
+
K
ETI
(%)
=
100%
+
TB
f
Pin
The complete expression for Time Interval averaging depends on signal to noise
ratio and statisticaldistribution factors.
Scans by ArtekMedia © 2007
Section
1-7015
SPECIFICATIONS
Introduction
The
7D15
is
a digital counter plug-in designed
for
use
with
all readout-equipped 7000-Series Oscilloscope mainframes.
It
will
function
in any plug-in compartment; however, in the vertical compartment, a selectable display
is
internally con-
nected
to
the oscilloscope.
When
used
in the horizontal compartment, mainframe triggers
are
available
to
the 7D15.
The
7D15
has
eight modes
of
operation:
Frequency-DC
to
225 MHz direct, Frequency
Ratio-O
to
105 :1,
Period-
10
ns
to
105
s,
Period
Averaging-
10
ps
resolution,
TlM-
10
ns
to
105
s,
TIM
Averaging-1
ns
accuracy,
Totalize-1
to
108
events, Manual Stop
Watch-to
105 S.
The electrical specifications listed in the Performance Requirement column
are
valid over the stated environmental
range
for
instruments calibrated at
an
ambient temperature
of
+20°C
to
+30°C and after a five minute warmup unless otherwise
noted. The electrical specifications listed in the Supplemental
Information
column indicate typical instrument operation and
is
not
intended
to
be
construed
as
a requirement
for
proper instrument operation.
Characteristics
MEASUREMENT
MODES
Frequency Mode
Range
Resolution
1 Accuracy
Period Mode
Range
Resolution
1 Accuracy
Time Interval Mode
Range
Resolution
1 Accuracy (nominal)
TABLE
1-1
ElECTR
ICAl
CHARACTERISTICS
Performance Requirement
DC
to
225 megahertz
0.1
hertz
minimum
Efreq (hertz) = ± TB X Fin ± 1/T
Efreq
(%)
= 100%
[±
TB ±T X1FinJ
10 nanoseconds
to
105 seconds
with
averaging times
of
X1
to
X1000 in decade
steps.
10 picoseconds maximum.
_
1X10-
9
±K±P
ck
Eper
(sec)
- ±
TB
X Pin ±
-----:-M:----=>-
Eper
(%)
= 100%
f±
TB + ± 1 X
10-
9 ± K ±
pckl
L Pin X M J
6 nanoseconds
to
105 seconds
with
averaging times
of
X1
to
X 1000.
0.1
nanosecond usable.
ETI
(sec)
= TB X Pin ±
(Pck/VM)
±
10-
9 ± K
(Pck/VM)
±
10-
9 ± K
ETI
(%)
=100% ± TB ± Pin
The complete expression
for
Time Interval averaging depends on signal
to
noise
ratio and statistical
distribution
factors.
1 Refer
to
Figs. 1-2
through
1-7
at
the
rear
of
this
section
for
additional
accuracy
information.
@
1-1
