HP 8447D Operation manual

Printed in USA March 2000
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2Chapter1
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Operation and Service Manual
HP 8447D/E/F and HP 8447F H64
Amplifiers
Serial Numbers: HP 8447D, 2944A
HP 8447E, 2944A
HP 8447F, 2944A
HP 8447F H64, 3113A
HP Part No. 08447-90066
Supersedes 08447-90033, 08447-90063, 08447-90059
Printed in USA
Print Date: July 1996
Copyright Hewlett-Packard Company 1970-1996. All Rights Reserved. Reproduction, adaptation, or translation
without prior written permission is prohibited, except as allowed under the copyright laws.
1400 Fountaingrove Parkway, Santa Rosa, CA 95403-1799, USA

2 DRAFT
Legal
Legal
The information contained in this document is subject to change without notice.
Hewlett-Packard makes no warranty of any kind with regard to this material, in-
cluding but not limited to, the implied warranties of merchantability and fitness for
a particular purpose. Hewlett-Packard shall not be liable for errors contained herein
or for incidental or consequential damages in connection with the furnishing, per-
formance, or use of this material.
Safety Info
WARNING: Warning denotes a hazard. It calls attention to a procedure which, if not correctly
performed or adhered to, could result in injury or loss of life. Do not proceed beyond a
warning note until the indicated conditions are fully understood and met.
WARNING: This is a Safety Class I product (provided with a protective earthing ground
incorporated in the power cord). The mains plug shall only be inserted in a socket outlet
provided with a protective earth contact. Any interruption of the protective conductor,
inside or outside the instrument, is likely to make the instrument dangerous. Intentional
interruption is prohibited.
CAUTION: Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or
adhered to, would result in damage to or destruction of the instrument. Do not proceed beyond
a caution sign until the indicated conditions are fully understood and met.
CAUTION: This product is designed for use in Installation Category II and Pollution Degree 2.
This instrument has been designed and tested in accordance with IEC Publication
348, Safety Requirements for Electronic Measuring Apparatus, and has been sup-
plied in a safe condition. The instruction documentation contains information and
warnings which must be followed by the user to ensure safe operation and to main-
tain the instrument in a safe condition.
”CSA” The CSA mark is a registered trademark of the Canadian Standards Asso-
ciation.
Notice for Germany: Noise Declaration LpA %< 70 dB am Arbeitsplatz (operator
position) normaler Betrieb (normal position) nach DIN 45635 T. 19 (per ISO 7779)

DRAFT 3
Operation and Service Manual

4 DRAFT
Operation and Service Manual
General Information
General Information
The HP 8447D, 8447E and 8447F are general purpose, wideband amplifiers. Each
instrument consists of a power supply and one or two thin film, hybrid, integrated
circuit amplifiers. The thin film amplifiers are hermetically sealed and feature low
noise, low distortion, flat frequency response, and long term stability and reliabil-
ity.
The HP 8447D Amplifier is a pre-amplifier that provides 25 dB of gain to signals
from 100 kHz to 1.3 GHz. It can be used to increase the sensitivity of any lab,
shop or field device operating within its frequency range.
The HP 8447E Amplifier is a power amplifier that provides 22 dB of gain to sig-
nals from 100 kHz to 1.3 GHz. It can be used to increase the output power of sig-
nal generators, swept sources and similar devices operating within its frequency
range.
The HP 8447F Amplifier contains a preamplifier and a power amplifier. They are
the same thin film amplifiers used in the HP 8447D and HP 8447E. The input and
output ports of both amplifiers are available on the front panel. They can be used
separately or cascaded to provide 47 dB of gain.
The HP 8447F Option H64 Amplifier is a general purpose wide band amplifier
with Type-N connectors. It contains two preamplifiers. One provides 26 dB mini-
mum gain to signals from 9 kHz to 50 MHz. The other provides 25 dB minimum
gain to signals from 100 kHz to 1300 MHz.
Table 1 HP 8447D and HP 8447E Specifications
Specifications HP 8447D
Preamp
HP 8447E
Power Amp
Frequency range 0.1 to 1300 MHz 0.1 to 1300 MHz
Typical 3 dB bandwidth (Std, Opt 001 and Opt 011) .075 to 1700 MHz .075 to 1400 MHz
Mean Gain (20°to 30°C) 25 dB minimum 22 dB ±2.0dB
Gain flatness across frequency range ±1.5 dB ±1.5 dB
Noise Figure <8.5 dB <11 dB (typical)
Output power for 1 dB gain compression >+7 dBm (typical) ≥+12.5 dBm
(0.1 to 1000 MHz)

DRAFT 5
Operation and Service Manual
General Information
a. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.15 ns.
b. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.25 ns.
Harmonic distortion −30 dB for 0 dBm output (typi-
cal)
−30 dB for +8 dBm output
Typical output for <−60 dB harmonic distortion −30 dBm −20 dBm
VSWR, 1 to 1300 MHz <2.0:1 Input
<2.2:1 Output
−−
VSWR, 1 to 1400 MHz −− <2.2:1 Input
<2.5:1 Output
Impedance 50 Ω50 Ω
Reverse isolation >40 dB >40 dB
Maximum DC input voltage ±10 V ±10 V
Typical risetime 400 ps 420 ps
Typical group delay 1.1 nsa1.5 nsb
Net weight 3 lbs 8 oz (1.59 kg) 3 lbs 8 oz (1.59 kg)
Option 001 3 lbs 14 oz (1.75 kg) −−
Option 010 3 lbs 1 oz (1.84 kg) 3 lbs 10 oz (1.64 kg)
Option 011 4 lbs 10 oz (1.64 kg) −−
Dimensions 8 1/2 in (216 mm) by 5-1/2 in (130 mm) by 3-3/8 in (85.8 mm)
Power Requirements 115 or 230 Vac ±10%, 48 to 440 Hz, 15 Watts, 27 VAmax
Environmental Operation: 0°C to +55°C
Storage: −40°C to +75°C
Table 1 HP 8447D and HP 8447E Specifications
Specifications HP 8447D
Preamp
HP 8447E
Power Amp

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Operation and Service Manual
General Information
Table 2 HP 8447F Specifications
Specifications HP 8447F
Preamp Power Amp
HP 8447F H64
Preamp Low Freq. Preamp
Frequency range 0.1 to 1300 MHz 0.1 to 1300 MHz 0.1 to 1300 MHz 9 kHz to 50 MHz
Typical 3 dB bandwidth
(Std, Opt 001 and Opt 011)
.075 to 1700 MHz .075 to 1400 MHz .075 to 1700 MHz 6 kHz to 400 MHz
Mean Gain (20°to 30°C) 25 dB minimum 22 dB ±2.0dB 25 dB minimum 26 dB minimum
Gain flatness across fre-
quency range
±1.5 dB ±1.5 dB ±1.5 dB ±2 dB
Noise Figure <8.5 dB <11 dB (typical) <8.5 dB −−
Output power for 1 dB gain
compression
>+7 dBm (typical) ≥+12.5 dBm
(0.1 to 1000 MHz)
>+7 dBm (typical) >+15 dBm
(0.1 to 1000 MHz)
Harmonic distortion −30 dB for 0 dBm
output (typical)
−30 dB for +8 dBm
output
−30 dB for 0 dBm
output (typical)
−35 dBc for +10
dBm output
Typical output for <−60 dB
harmonic distortion
−30 dBm −20 dBm −30 dBm −2 dBm
VSWR, 9 kHz to 50 MHz −− −− −− <2.0:1
VSWR, 1 to 1300 MHz <2.0:1 Input
<2.2:1 Output
−− <2.0:1 Input
<2.2:1 Output
VSWR, 1 to 1400 MHz −− <2.2:1 Input
<2.5:1 Output
−−
Impedance 50 Ω50 Ω50 Ω50 Ω
Reverse isolation >40 dB >40 dB >40 dB −−
Maximum DC input volt-
age
±10 V ±10 V ±10 V ±10 V
Typical risetime 400 ps 420 ps 400 ps −−
Typical group delay 1.1 nsa1.5 nsb1.1 nsa−−
Net weight 3 lbs 14 oz (1.75 kg) 3 lbs 14 oz (1.75 kg)
Option 001 −− −−

DRAFT 7
Operation and Service Manual
General Information
a. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.15 ns.
b. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.25 ns.
Option 010 4 lbs 1 oz (1.84 kg) 4 lbs 1 oz (1.84 kg)
Dimensions 8 1/2 in (216 mm) by 5-1/2 in (130 mm) by 3-3/8 in (85.8 mm)
Power Requirements 115 or 230 Vac ±10%, 48 to 440 Hz, 15 Watts, 27 VAmax
Environmental Operation: 0°C to +55°C
Storage: −40°C to +75°C
Table 3 HP 8447F H64 Characteristics
Characteristics HP 8447F H64
Preamp Low Freq. Preamp
Noise figure
9 kHz to 20 kHz
20 kHz to 100 kHz
100 kHz to 50 MHz
−−
<12.0 dB
<9.0 dB
<7.0 dB
Typical mean gain (20°to 30°C) −− 28 dB
Table 2 HP 8447F Specifications
Specifications HP 8447F
Preamp Power Amp
HP 8447F H64
Preamp Low Freq. Preamp

8 DRAFT
Operation and Service Manual
General Information
Figure 1 Typical Preamplifier Performance Curves