Tektronix SG 5010 User manual

Tektronix
COMMITTED TO EXCELLENCE
PLEASE CHECK FOR CHANGE INFORMATION
AT THE REAR OF THIS MANUAL
SG 5010
PROGRAMMABLE
160 kHz
OSCILLATOR
INSTRUCTION MANUAL
Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon 97077
070-4331-00
Product Group 76
Serial Number
First Printing SEP 1983
Revised JUL 1985

Copyright © 1983 Tektronix, Inc. All rights reserved.
Contents of this publication may not be reproduced in any
form without the written permission of Tektronix, Inc.
Products of Tektronix, Inc. and its subsidiaries are covered
by U.S. and foreign patents and/or pending patents.
TEKTRONIX, TEK, SCOPE-MOBILE, and are
registered trademarks of Tektronix, Inc. TELEQUIPMENT
is a registered trademark of Tektronix U.K. Limited.
Printed in U.S.A. Specification and price change privileges
are reserved.
i
i

FOR QUALIFIED SERVICE PERSONNEL ONLY
Refer also to the preceding Operators Safety Summary
Do Not Service Alone
Do not perform internal service or adjustment of this prod¬
uct unless another person capable of rendering first aid and
resuscitation is present.
Use Care When Servicing With Power On
Dangerous voltages may exist at several points in this prod¬
uct. To avoid personal injury, do not touch exposed connec¬
tions and components while power is on.
Disconnect power before removing protective panels, sol¬
dering, or replacing components.
Power Source
This product is intended to operate in a power module con¬
nected to a power source that will not apply more than 250
volts rms between the supply conductors or between either
supply conductor and ground. A protective ground connec¬
tion by way of the grounding conductor in the power cord is
essential for safe operation.

SG 5010
viii
SG 5010 Programmable 160 kHz Oscillator.

Section 1—SG 5010
SPECIFICATION
introduction
This section of the manual contains a general description
of the TEKTRONIX SG 5010 Programmable 160 kHz Oscil¬
lator and its electrical, environmental, and physical speci¬
fications. Standard accessories are also listed. Instrument
option information is located in the Options section.
Instrument Description
The SG 5010 Programmable 160 kHz Oscillator is a
GPIB programmable TM 5000-Series plug-in instrument de¬
signed for low-distortion audio applications, It generates five
waveforms: sine wave, square wave, SMPTE/DIN
intermodulation test signal, CC1F intermodulation test sig¬
nal, and sine wave burst. All of these signals may be swept
in frequency or amplitude. Frequency, amplitude, and burst
parameters are fully programmable, as are the sweep pa¬
rameters. Parameter values are displayed by 5 seven-seg¬
ment LEDs in the display window. The window also
indicates parameter units, remote or addressed state, and
error codes. Three source impedances are selectable and
the output signal can be grounded or floating, balanced or
unbalanced. Output amplitude is programmable from
0.2 mV to 21.2 V peak equivalent Vrms (10.6 Vrms maxi¬
mum in unbalanced mode), supplying up to 28 dBm into a
600 Q load. An ON-OFF function turns the output signal on
or off at the output connectors. Additional connectors sup¬
ply a sync signal, sweep ramp and pen lift signals and ac¬
cept triggering and input signals from external sources.
At power-up, the instrument performs a self-test and as¬
sumes the settings in use when previously powered-down,
with the exception that the output is in the “OFF" condition
and the display shows the amplitude. Instrument functions
can be set to ten user-definable configurations stored in
memory.
The SG 5010 is designed for remote or local operation in
two compartments of any TM 5000-Series power module. It
can also operate under local control only, in two compart¬
ments of a TM 500-Series power module, after minor me¬
chanical modification (refer to qualified service personnel).
Rear interface connections provide access to versions of all
front panel signals except the main output.
Standard Accessories
The following items are shipped with the SG 5010.
1 instruction Manual
1 Reference Guide
1 Instrument Interfacing Guide
1 Banana-to-bnc adapter
Optional Accessories
1 Pin plug-to-bnc cable
Refer to the Accessories page at the back of this manual
for part numbers.
IEEE 488 (GPIB) Functions
The SG 5010 can be remotely programmed via the digital
interface specified in IEEE Standard 488-1978, IEEE Stan¬
dard Digital Interface for Programmable Instrumentation. In
this manual, the digital interface is called the General Pur¬
pose Interface Bus (GPIB).
The IEEE standard identifies the interface function reper¬
toire of an instrument on the GPIB in terms of interface func¬
tion subsets. The subsets are defined in the standard. The
subsets that apply to the SG 5010 are listed in Table 1-1.
NOTE
Refer to IEEE Standard 488-1978 for more detailed
information. The standard is published by the Institute
of Electrical and Electronics Engineers, Inc., 345 East
47th Street, New York, New York 10017.
1-1

Specification—SG 5010
Table 1-1
IEEE 488 INTERFACE FUNCTION SUBSETS
Function
Subset
Capability
Source Handshake
SHI
Complete capability.
Acceptor Handshake
AH1
Complete capability.
Basic Talker
T6
Responds to Serial Poll, Untalks if My Listen Address (MLA)
is received.
Basic Listener
L4
Unlistens if My Talk Address (MTA) is received.
Service Request
SRI
Complete capability.
Remote-Local Function
RL1
Complete capability.
Parallel Pol!
PPO
Does not respond to Parallel Poll.
Device Clear
DC1
Complete capability.
Device Trigger
Complete capability.
Controller Function
No controller function.
Electrical interface
E2
Tri-state drivers.
Performance Conditions
The limits stated in the Performance Requirements col¬
umn of the following tables are valid with the following
conditions:
1. T he instruments internal adjustments are performed
at an ambient temperature of +20 to +30°C.
2. T he instrument must be in a non-condensing environ¬
ment whose limits are described under Environmental, Table
1-4.
3. A llow twenty minutes warm-up time for operation to
specified accuracy; sixty minutes after exposure to or stor¬
age in high-humidity (condensing) environment.
items listed in the Performance Requirements column of
the Electrical Characteristics are verified by completing the
Performance Check in this manual, information in the Sup¬
plemental Information and Description columns is provided
for user information only and should not be interpreted to be
Performance Check requirements.
1-2

Specification —SG 5010
Table 1-2
ELECTRICAL CHARACTERISTICS
Characteristics
Performance Requirements
Supplemental Information
SINE FUNCTION
FREQUENCY RANGE
10.00 Hz to 163.80 kHz
Resolution is 0.01 Hz to 163.80 Hz, 0.1 Hz to
1638.0 Hz, 1Hz to 16.380 kHz, 10 Hz to
163.80 kHz.
Accuracy
±0.01%
Phase locked to internal crystal reference.
Typical settling time to specified accuracy is
less than 0.5 second for frequencies above
50 Hz, increasing to approximately 1 second
at 10 Hz.
DISTORTION (RL 600 ohms
maximum output)
THD, 2nd through 5th harmonics only
THD + N system spec with AA 5001 analyzer
10 Hz to 20 Hz
0.010% (-80 dB)
0.010% (-80 dB)
20 Hz to 20 kHz
0.0010% (-100 dB)
0.0032% (-90 dB) a
20 kHz to 50 kHz
0.0032% (-90 dB)
0.010% (-80 dB)
20 kHz to 100 kHz
0.010% (-80 dB)
0.010% (-80 dB)
100 kHz to 163,8 kHz
0.032% (-70 dB) b
(not applicable)
LEVEL FLATNESS (1 kHz
reference)
20 Hz to 20 kHz
±0.05 dB
10 Hz to 163.8 kHz
±0.2 dB
SQUARE WAVE FUNCTION
FREQUENCY RANGE
10.00 Hz to 16.380 kHz
Accuracy and resolution are same as
sinewave function.
RISE & FALL TiME
1.5 ms ±10%
Typically less than 2% aberrations.
SMPTE/DIN FUNCTION
UPPER FREQUENCY RANGE
10 Hz to 163.80 kHz
Accuracy and resolution same as sinewave
function.
LOWER FREQUENCY (IM
frequency) RANGE
Selectable from 40 Hz, 50 Hz, 60 Hz,
80 Hz, 100 Hz, 125 Hz, 250 Hz, or
500 Hz, all ±2%
Settling time is typically less than 1 second
for changes in IM frequency. Mixing ratio is
selectable 4:1 or 1:1, both typically within
3%.
RESIDUAL IMD (7 kHz and
60 Hz, or 8 kHz and 250 Hz, RL
5*600 ohms)
<0.0032% (-90 dB)
System specification with AA 5001 distortion
analyzer.
CCIF FUNCTION
CENTER FREQUENCY RANGE
2.5 kHz to 163.80 kHz
Accuracy and resolution are same as
sinewave function.
IM FREQUENCY RANGE
Selectable from 40 Hz, 50 Hz, 60 Hz,
80 Hz, 100 Hz, 125 Hz, 250 Hz, or
500 Hz, all ± 2%.
Settling time is typically less than 1 second
for changes in IM frequency. Output twin
frequencies are fcenter ± FIM.
1-3

Specification—SG 5010
Table 1-2 (cont)
ELECTRICAL CHARACTERISTICS
Characteristics
Performance Requirements
Supplemental Information
CCIF FUNCTION
RESIDUAL IMD (14 KHz arid
15 kHz, RL s*60Q ohms)
<0.0018% (-95 dB)
System specification with AA 5001 distortion
analyzer.
CENTER FREQUENCY
LEAKAGE AND HARMONIC
CONTENT
<40 dB for center frequencies up to
20 kHz.
BURST FUNCTION
ON CYCLES RANGE
1 to 65535
OFF CYCLES RANGE
1 to 65535
Selecting 0 cycles enables continuous burst
mode and selecting 99999 cycles enables
single burst mode.
OFF AMPLITUDE
0% Mode
<-40 dB
10% Mode
-20 dB ±0.5 dB
BURST GATE INPUT
TTL compatible input with internal puliup
resistor. A low input will truncate burst
output at next zero crossing and reset both
; on and off cycle counters, A subsequent high
input will enable burst output at next
available zero crossing.
EXTERNAL (AMPLIFIER)
FUNCTION
INPUT IMPEDANCE and
Configuration
Balanced with approximately 15k to 20 k
ohms each side to main signal output
common.
MAXIMUM INPUT VOLTAGE
3 V peak ac + dc (dc component must not
exceed 50 mV for linear operation).
Maximum floating voltage is 25 V peak,
limited to 3 V peak between input common
and main output common for linear
operation. Common mode rejection is
typically better than 46 dB,
GAIN ACCURACY
5,0% (0.5 dB for dBm)
Output amplitude is calibrated for 2 Vrms
(5.66 Vp-p) input. Overall voltage gain is one-
half of selected Vrms value.
FREQUENCY RESPONSE
(1 kHz ref)
±0.1 dB, 20 Hz to 20 kHz
Risetime is typically less than 2 ns
THD + N (80 kHz bandwidth
limited)
<0.01% (-80 dB), 20 Hz to 20 kHz
14

Specification—SG 5010
Table 1-2 (cont)
ELECTRICAL CHARACTERISTICS
Characteristics
Performance Requirements
Supplemental Information
MAIN OUTPUT
IMPEDANCE
Selectable 600 ohms ±1%, 150 ohms
± 2%, or 50 ohms ± 3%
Selectable balanced or unbalanced
configuration, floating or grounded through
approximately 30 ohms. In balanced
configuration output impedance from each
output to CT is 1/2 of selected value. Output
impedance does not change with ON/OFF
selection,
AMPLITUDE RANGE
Maximum Output
Balanced mode
21,20 Vrms open circuit or + 28.05 c dBm
into 600 ohms.
Current limited for combined RS + RL below
approximately 200 ohms.
Unbalanced mode
10.60 Vrms open circuit or +22.05 c dBm
into 600 ohms.
Current limited for combined RS + RL below
approximately 100 ohms.
Minimum Output
0.200 mVrms open circuit or — 72.45 c dBm
into 600 ohms.
AMPLITUDE RESOLUTION
Typically better than 0.25% for Vrms or
0.05 dB.
AMPLITUDE ACCURACY (Vrms
3*50 mV, calibrated for constant
Vp-p output, sinewave
equivalent Vrms or dBm.)
Sine function
20 Hz to 20 kHz
10 Hz to 163.8 kHz
±3.0% (0.3 dB for dBm)
Square, SMPTE/DIN, and Burst
(if >50 kHz) functions
±3.0% (0.3 dB for dBm)
CCIF
±5.0% (0.5 dB for dBm)
TYPICAL AMPLITUDE
SETTLING TIME
Less than 500 ms for frequencies above
50 Hz, increasing to approximately 1 sec at
10 Hz.
DC OFFSET (Maximum Output)
Balanced
Unbalanced
<25 mV
<15 mV
SIGNAL BALANCE RATIO
(Balanced mode only)
At least 60 dB (CCITT Recommendation
0.121) from 20 Hz to 20 kHz for output levels
greater than or equal to -10 dBm.
OTHER OUTPUTS
SYNC OUTPUT
LSTTL compatible signal designed to give
stable oscilloscope display of main output
signal in all internally generated modes.
Sine, Square functions
Squarewave at main output frequency.
SMPTE/DIN function
Squarewave at lower (IM) frequency.
1*5

Specification—SG S010
Table 1-2 (cont)
ELECTRICAL CHARACTERISTICS
Characteristics
Performance Requirements
Supplemental Information
OTHER OUTPUTS
CCIF function
Squarewave at IM (1/2 of difference)
frequency.
Burst function
High when burst output is on, low when
burst output is off.
RAMP OUTPUT
0 to 10 V stairstep ramp enabled during
sweep mode. 0 V corresponds to start
parameter and 10V to stop parameter.
Number of steps equals selected N. Output
impedance is approximately 1 k ohm.
PEN LIFT OUTPUT
Standard LSTTL output. Output designed to
enable frequency and amplitude sweeps with
no switching transients on XY recorder.
REAR INTERFACE
INPUT/OUTPUT
SYNC OUTPUT
Pins 27B, 28B, Same as front panel sync
output.
BURST GATE INPUT
Pins 24B, 24A. Same as front panel Burst
Gate input.
RAMP OUTPUT
Pins 25A, 25B. Same as front panel Ramp
output.
PEN LIFT OUTPUT
Pins 26A, 26B. Same as front panel Pen Lift
output.
MAIN OSCILLATOR SYNC
OUTPUT
Pins 15B, 14B. LSTTL ievei output at
frequency of main oscillator.
EXTERNAL 1 MHz INPUT
Pins 14A, 15A. Buffered input for allowing
external 1 MHz ±0.01% or better reference.
*80 kHz bandwidth limited
b Any individual harmonic
c With 50 ohms output impedance. For other output impedance selections subtract 1.25 dB for 150 ohms, and 5.35 dB for 600 ohms.
1-6