General
Information
Model
8904A
1-4.
SPECIFICATIONS
nble
1-1.
HP
8904A
Specifications
(1
of
4)
HP
8904A SPECIFICATIONS
Specifications describe the instruments' warranted performance
(5oR
output
only unless noted) for automatic operation. Mathematically derived charac-
teristics denote parameters which can be derived
from
specifications and
knowledge
of
the digital generation methods used in the
HP
8904A.
Sup-
plemental characteristics are intended to provide information useful in
applying the instrument by giving typical, but
not
warranted performance
parameters. These are noted
as
'typical
",
'normal", or 'approximate".
Frequency
Range: Sine wave:
0
Hz to
600
kHz.
Square, triangle, ramp:
0
Hz to 50
kHz.
Resolution: 0.1 Hz.
Accuracy: Internal 10 MHz timebase:
250
ppm.
AC
amplitude (sine wave)
Range:
0
to
105
into a
5052
load.
Resolution:
3%
&its.
Accuracy (amplitude
>40
mVpp into
50Q):
1'30, 0.1 HZ
to
100
kHz.
3%,
100
kHz to
600
kHz.
Flatness (amplitude
>630
into
50Q):
+O.lYo
(=0.009
dB), 0.1 HZ
to
100 kHz.
21.0%
(r0.09
dB), 100 kHz to
600
kHz.
External 10 MHz timebase: Same as accuracy and
stability
of
external timebase.
Spectral Purity (sine wave)
THD+N
(including spurs, amplitude
>50
mV
rms
into
5052):
-63
dBc
I~TLS
(0.07%),
20
HZ to 7.5 kHz,
30
kHz BW.
-63
dBc
I~TLS
(0.07%), 7.5 kHz
to
20
kHz,
80
kHz BW.
-55
dBc
I~TLS
(0.18%),
20
kHz to
100
kHz, 750 ~HZ
BW.
Phase (sine wave)
Range:
0
to
359.9O.
Resolution:
0.lo
or 0.001 radians.
Increment accuracy (Relative to
Oo
for
a fixed frequency):
20.05O,
0.1
Hz to 100 kHz.
DC
amplitude
Range:
0
to
21OV
open circuit.
Resolution:
3%
digits.
Accuracy:
520
mV or
r2.1%,
whichever
is
greater.
Spectral Characteristic: Equal energy per unit bandwidth
Amplitude range:
0
to
lo\,
into a
5052
load.'
Resolution:
3%
digits.
Gaussian Noise
("white").
Mathematically Derived Characteristics
Noise flatness (amplitude
>lo0
mVp-p into
5052):
20.5 dB, 0.1 Hz to 100 kHz.
2
1.0
dB. 100 kHz to
600
kHz.
1
Peak Voltage
(Crest Factor)
X
2
X
d-h
Noise
Voltage
/
fi
=
Supplemen ta
1
Characteristics
Number of channels:
One standard;
two
with Option
002;
Standard waveforms:
Sine, square, triangle, ramp,
de,
and
AC
amplitude accuracy:
four
with
Option
002.
Gaussian white noise.
Typically: Square wave:
<3%
at
20
kHz.
Triangle
:
<4%.
at
20
kHz.
Gaussian
noise:
<5%.
Ramp:
<7%
at
20
kHz.
Square wave risetime/falltime:
Typically
<2.5
ps.
Spurious (typically the higher of):
Noise crest factor:
fypically
>4.4.
Switching speed (via
HP-IB):
Typically
<25
ms.
-50
dBc
or
500
pV,
100
kHz
to
600
kHz,
20
MHz
BW.
."
2
-70
dB
I
+
X
F
-80dB
n
10Hz
100Hz
1
kHz
10
kHz 100kHz
Frequency
Typical
Level
Flatness
(I
kHz
ref.)
at
5Vp-p
into a
50R
load.
+0.1
dB
I
I
I
1
i
LL
-0.1
dB
100kHz
lMHz
100Hz lkHz
10
kHz
Frequency
Typical
SSB
phase noise at
500
kHz.
-70'
-80
-90
2
-100
%
-110
\
V
-120
-130
-1401
I
I
I I
I
1Hz 10Hz 100Hz lkHz 10kHz 100kHz
Offset Frequency
%
VPk
(4.4)
x
(2)
x
vmmi
rev.OlNOV89
1-3
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