HP 3335A - Instrument Specifications and Operation; Output Impedance, Frequency, and Amplitude; Sweep Modes and Remote Programming; Telecommunications Features

Model 3335A
Section E
Table 1-2. General Information.
Output Impedance: (Selected by a front panel switch}
Standard: 50 ohms or 75 ohms
Option 002/604: 75 ohms unbalanced, 124 ohms balanced
and 135 ohms balanced
Option 003: 75 ohms unbalanced and 150 ohms batanced
Frequency Range:
Standard:
50 Q: 200 Hz to 80 099 999.999 Hz
75 Q: 200 Hz to 86 099 998.999 Hz
Option 002/004:
75 Q: 200 Hz to 86 099 999.999 Hz
124 Q: 10 kHz to 10 MHz
135 Q: 10 kHz to 2 MHz
Option 003
75 Q: 200 Hz to 80 099 999.999 Hz
150 ©: 10 kHz to 2 MHz
Frequency Resolution: 0.001 Hz
Frequency Display: 17 digits
Frequency Settling Time: < 20 msec to within 90° of final phase.
Frequency Sweep Mode:
Auto: 8 sweeps/sec, 100 steps/sweep
Manual, single 10 sec and 50 sec sweep: 1000 steps/sweep
Amplitude Range:
Standard:
50 ohms: +13.01 dBm to —86.98 dBm
75 ohms: +11.25 dBm to —88.74 dBm
Option 002:
75 ohms unbalanced:
124 ohms balanced:
135 ohms balanced:
Option 003:
75 ohms unbalanced: +11.25 dBm to —88.74 dBm
450 ohms balanced:
Option 004: Same as Option 002
Amplitude Settling Time: < 500 msec to within 0.02 dB of final
value,
+11,25 dBm to ~88.74 dBm
Internal Frequency Reference:
Frequency stability is obtained by use of a 10 MHz crystal
oscillator in a temperature-stabilized oven. A high-stability
10 MHz temperature-stabilized crystal oscillator is provided
by Option 001. The master 40 MHz oscillator of the instru-
ment reference section is capable of operating open loop (no
oven or external reference} but the frequency stability is not
specified.
External Frequency Reference:
The 40 MHz master oscillator of the reference section can be
phase-locked to an external reference through a rear panel
BNC connector. The amplitude and frequency requirements
of the external signal are - 7 dBm to + 7 dBm {+ 0.4 V to
+ 0.5 V} with frequency being a sub-harmonic of 40 MHz and
= 1 MHz.
Remote Programming:
The 3335A is a fully programmable instrument designed for
systems interfacing with the Hewlett-Packard Interface Bus
(HP-IB). It will recognize a preset listen address and accept
bit-paratlel, word {byte} serial ASCII coded instructions. The
address is preset by five rear panel listen address switches. A
brief description of the HP-IB with address and programming
information is provided in Section IH.
Programmability:
Ail FUNCTION keys except DISPLAY, ail DATA keys
including the ENTRY keys, all INCR keys and all FRE-
QUENCY keys except the MANUAL TUNE keys and MAN —
UAL SWEEP key are programmable. The POWER key and
the impedance selection switch are not programmable.
HP-IB Connector:
The rear panei HP-IB connector provides ati tines for remote
control and digital output using the HP-18. Fhe connector is
compatible with the -hp- 10631 {A, B or C} HP-IB cables and
contains metric threaded cable mounting studs.
Maximum HP-IB Cable Length:
2 meters (6.56 feet} per device; 20 meters (65.6 feet) total
accumulation per system,
HP-1B Lines:
The 3335A uses all of the HP-IB lines except EOI {End or
Identify), SRQ (Service Request) and the data line DIO 8.
Data input/Output:
All data is received through the HP-IB Data Input/Output
{DIO) lines.
Data Transfer Timing:
Timing of data transfer is controlled by “handshake” lines
DAV, NRFD and NDAC.
HPB Logic Levels:
TTL compatible low true (true state = digital ground or 0 V
to 0.4 V de; false state = open or + 2.5 V de to + 5 V do).
isolation:
The HP-IB lines and 3335A are optical coupled.
Listen Address Code:
The 3335A is shipped from the factory with an ASCII listen
address of $ {octal 044). Instructions for changing the listen
address are provided in Section HE
HP-IB Bus Commands:
The 3335A will respond to certain Unaddress, Universal and
Addressed Commands {see information on Remote Program-
ming in Section HH).
Telecommunications Features:
Amplitude blanking of the output signal at each change of
output frequency is obtainable except in the manual tune
and manual sweep modes. Special sweep feature allows each
frequency step to be held for four seconds and also includes
amplitude blanking.
General o 3
Operating Temperature: 0c to 55 C
Storage Temperature: -40 Cto +75 C
Power Requirements: 100 V, 120 V, 220 V or 240 V ac,
+ 5% - 10%, 48 Hz to 66 Hz, 200 VA Maximum
Dimensions:
Dimensions in millimeters and {inches}:
Height: 133.4 (5 1/4)
Width: 425.5 (16 3/4}
Depth: 507.7 {19 3/4)
Weight:
Weight in kilograms and {pounds}: 19.05 {42}
Rev. A 1-5