HP 5326A - General Information

Model 5326/27A
General Information
SECTION I
GENERAL INFORMATION
1-1. DESCRIPTION
1-2. The Hewlett-Packard Models 5326A/5327A are
frequency counters that have a variety of functions.
The basic difference between the two models is the
addition of the prescaler assembly in the 5327A. This
assembly increases the upper frequency limit from
50 MHz to 550 MHz. The 5326A uses a high-
sensitivity, 50-ohm input amplifier in place of the
prescaler.
1-3. The instruments measure frequency, period,
period average, time interval, time interval average,
and ratio. Features include a 7-digit display (8-digits
optional), 1M ohm and 50-ohm inputs, display
storage, and blanking for insignificant digits in the
display. Decimal point and unit readouts are dis¬
played automatically with each operating selection.
Two independent input channels are provided for
time interval measurements. Each input channel has
an attenuator, trigger slope selector, level control,
ac-dc coupling, and an oscilloscope marker output.
Table 1-1 lists the electrical and mechanical
specifications.
1-4. IDENTIFICATION
1-5. Hewlett-Packard uses a two-section serial num¬
ber mounted on the rear panel. Earlier instruments
use an 8-digit serial number (000-00000). The first
three digits are a serial prefix number; the last five
digits refer to the specific instrument. Later instru¬
ments use a 9-digit serial number (0000A00000). The
first four digits are the serial prefix and the last five
digits refer to the specific instrument. If the serial
prefix of your instrument differs from that listed on
the title page of this manual, there are differences
between this manual and your instrument. Lower
serial prefixes are documented in Section VII, and
higher serial prefixes are covered with manual change
sheets included with the manual. If the change sheet
is missing, contact the nearest Hewlett-Packard Sales
and Service Office listed on the inside rear cover of
this manual.
1-6. APPLICATIONS
1-7. The 5326A/5327A Counters are particularly
adaptable to timing measurements such as pulse
width, pulse repetition frequency, and propagation
delay. The time interval average mode measures time
interval on repetitive signals with resolution better
than one nanosecond. When used with microwave
test systems, group delay, phase, and level measure¬
ments can be performed.
1-8. OPTIONS
1-9. The instrument can be ordered with the following
options: Option 001, 8-digit display; Option 002, re¬
mote programming; Option 003, digital recorder out¬
puts; and Option 004, remote programming for all
signal input conditions.
Table 1-1. Equipment Supplied
Description
HP Part. No.
Detachable Power Cord, l l A 8120-1348
ft. (231 cm) long
Rack Mounting Kit 05326-60029
Table 1-2. Accessories Available
Description
HP Part No.
Digital Recorders
5050B, 5055A
Interconnect Cable, Digital
Recorder, 6 ft. (183 cm)
562A-16C
50-ohm BNC to BNC Coaxial
Cable, 4 ft. (122 cm)
10503-6001
Circuit Board Extender,
15-pin (two required)
5060-0049
Input Amplifier Circuit Board
Extender
10532-60001
Circuit Board Extender,
18-pin
5060-2041
Extender Board Kit; includes
two 5060-0049, and one each
5060-2041, and 10532-60001
10532A
1-1